def dedup(args):
"""
%prog dedup assembly.assembly.blast assembly.fasta
Remove duplicate contigs within assembly.
"""
from jcvi.formats.blast import BlastLine
p = OptionParser(dedup.__doc__)
p.set_align(pctid=0, pctcov=98)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
blastfile, fastafile = args
cov = opts.pctcov / 100.
sizes = Sizes(fastafile).mapping
fp = open(blastfile)
removed = set()
for row in fp:
b = BlastLine(row)
query, subject = b.query, b.subject
if query == subject:
continue
qsize, ssize = sizes[query], sizes[subject]
qspan = abs(b.qstop - b.qstart)
if qspan < qsize * cov:
continue
if (qsize, query) < (ssize, subject):
removed.add(query)
print "\n".join(sorted(removed))
def blast(args):
"""
%prog blast ref.fasta query.fasta
Calls blast and then filter the BLAST hits. Default is megablast.
"""
task_choices = ("blastn", "blastn-short", "dc-megablast", \
"megablast", "vecscreen")
p = OptionParser(blast.__doc__)
p.set_align(pctid=0, evalue=.01)
p.add_option("--wordsize", type="int", help="Word size [default: %default]")
p.add_option("--best", default=1, type="int",
help="Only look for best N hits [default: %default]")
p.add_option("--task", default="megablast", choices=task_choices,
help="Task of the blastn [default: %default]")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
reffasta, queryfasta = args
blastfile = get_outfile(reffasta, queryfasta)
run_megablast(infile=queryfasta, outfile=blastfile, db=reffasta,
wordsize=opts.wordsize, pctid=opts.pctid, evalue=opts.evalue,
hitlen=None, best=opts.best, task=opts.task, cpus=opts.cpus)
return blastfile
def dedup(args):
"""
%prog dedup assembly.assembly.blast assembly.fasta
Remove duplicate contigs within assembly.
"""
from jcvi.formats.blast import BlastLine
p = OptionParser(dedup.__doc__)
p.set_align(pctid=0, pctcov=98)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
blastfile, fastafile = args
cov = opts.pctcov / 100.0
sizes = Sizes(fastafile).mapping
fp = open(blastfile)
removed = set()
for row in fp:
b = BlastLine(row)
query, subject = b.query, b.subject
if query == subject:
continue
qsize, ssize = sizes[query], sizes[subject]
qspan = abs(b.qstop - b.qstart)
if qspan < qsize * cov:
continue
if (qsize, query) < (ssize, subject):
removed.add(query)
print("\n".join(sorted(removed)))
def annotate(args):
"""
%prog annotate blastfile query.fasta subject.fasta
Annotate overlap types (dovetail, contained, etc) in BLAST tabular file.
"""
from jcvi.assembly.goldenpath import Cutoff, Overlap, Overlap_types
p = OptionParser(annotate.__doc__)
p.set_align(pctid=94, hitlen=500)
p.add_option("--hang", default=500, type="int",
help="Maximum overhang length")
opts, args = p.parse_args(args)
if len(args) != 3:
sys.exit(not p.print_help())
blastfile, afasta, bfasta = args
fp = open(blastfile)
asizes = Sizes(afasta).mapping
bsizes = Sizes(bfasta).mapping
cutoff = Cutoff(opts.pctid, opts.hitlen, opts.hang)
logging.debug(str(cutoff))
for row in fp:
b = BlastLine(row)
asize = asizes[b.query]
bsize = bsizes[b.subject]
if b.query == b.subject:
continue
ov = Overlap(b, asize, bsize, cutoff)
if ov.otype:
ov.print_graphic()
print "{0}\t{1}".format(b, Overlap_types[ov.otype])
def uclust(args):
"""
%prog uclust fastafile
Use `usearch` to remove duplicate reads.
"""
p = OptionParser(uclust.__doc__)
p.set_align(pctid=98)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastafile, = args
identity = opts.pctid / 100.
pf, sf = fastafile.rsplit(".", 1)
sortedfastafile = pf + ".sorted." + sf
if need_update(fastafile, sortedfastafile):
cmd = "usearch -sortbylength {0} -output {1}".\
format(fastafile, sortedfastafile)
sh(cmd)
pf = fastafile + ".P{0}.uclust".format(opts.pctid)
clstrfile = pf + ".clstr"
consensusfastafile = pf + ".consensus.fasta"
if need_update(sortedfastafile, consensusfastafile):
cmd = "usearch -cluster_smallmem {0}".format(sortedfastafile)
cmd += " -id {0}".format(identity)
#cmd += " -strand both"
cmd += " -uc {0} -consout {1}".format(clstrfile, consensusfastafile)
sh(cmd)
def main(args):
"""
%prog deltafile refidsfile query.fasta ref.fasta
Plot one query. Extract the references that have major matches to this
query. Control "major" by option --refcov.
"""
p = OptionParser(main.__doc__)
p.add_option("--refcov", default=.01, type="float",
help="Minimum reference coverage [default: %default]")
p.add_option("--all", default=False, action="store_true",
help="Plot one pdf file per ref in refidsfile [default: %default]")
p.set_align(pctid=96, hitlen=500)
opts, args = p.parse_args(args)
if len(args) != 4:
sys.exit(not p.print_help())
deltafile, refidsfile, queryfasta, reffasta = args
qsizes = Sizes(queryfasta).mapping
rsizes = Sizes(reffasta).mapping
refs = SetFile(refidsfile)
refcov = opts.refcov
pctid = opts.pctid
hitlen = opts.hitlen
deltafile = filter([deltafile, "--pctid={0}".format(pctid),
"--hitlen={0}".format(hitlen)])
if opts.all:
for r in refs:
pdffile = plot_some_queries([r], qsizes, rsizes, deltafile, refcov)
if pdffile:
sh("mv {0} {1}.pdf".format(pdffile, r))
else:
plot_some_queries(refs, qsizes, rsizes, deltafile, refcov)
def blat(args):
"""
%prog blat ref.fasta query.fasta
Calls blat and filters BLAST hits.
"""
p = OptionParser(blat.__doc__)
p.set_align(pctid=95, hitlen=30)
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
reffasta, queryfasta = args
blastfile = get_outfile(reffasta, queryfasta, suffix="blat")
run_blat(infile=queryfasta,
outfile=blastfile,
db=reffasta,
pctid=opts.pctid,
hitlen=opts.hitlen,
cpus=opts.cpus,
overwrite=False)
return blastfile
def annotate(args):
"""
%prog annotate blastfile query.fasta subject.fasta
Annotate overlap types (dovetail, contained, etc) in BLAST tabular file.
"""
from jcvi.assembly.goldenpath import Cutoff, Overlap, Overlap_types
p = OptionParser(annotate.__doc__)
p.set_align(pctid=94, hitlen=500)
p.add_option("--hang",
default=500,
type="int",
help="Maximum overhang length")
opts, args = p.parse_args(args)
if len(args) != 3:
sys.exit(not p.print_help())
blastfile, afasta, bfasta = args
fp = must_open(blastfile)
asizes = Sizes(afasta).mapping
bsizes = Sizes(bfasta).mapping
cutoff = Cutoff(opts.pctid, opts.hitlen, opts.hang)
logging.debug(str(cutoff))
for row in fp:
b = BlastLine(row)
asize = asizes[b.query]
bsize = bsizes[b.subject]
if b.query == b.subject:
continue
ov = Overlap(b, asize, bsize, cutoff)
if ov.otype:
ov.print_graphic()
print "{0}\t{1}".format(b, Overlap_types[ov.otype])
def uclust(args):
"""
%prog uclust fastafile
Use `usearch` to remove duplicate reads.
"""
p = OptionParser(uclust.__doc__)
p.set_align(pctid=98)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastafile, = args
identity = opts.pctid / 100.
pf, sf = fastafile.rsplit(".", 1)
sortedfastafile = pf + ".sorted.fasta"
if need_update(fastafile, sortedfastafile):
cmd = "usearch -sortbylength {0} -fastaout {1}".\
format(fastafile, sortedfastafile)
sh(cmd)
pf = fastafile + ".P{0}.uclust".format(opts.pctid)
clstrfile = pf + ".clstr"
centroidsfastafile = pf + ".centroids.fasta"
if need_update(sortedfastafile, centroidsfastafile):
cmd = "usearch -cluster_smallmem {0}".format(sortedfastafile)
cmd += " -id {0}".format(identity)
cmd += " -uc {0} -centroids {1}".format(clstrfile, centroidsfastafile)
sh(cmd)
def blast(args):
"""
%prog blast ref.fasta query.fasta
Calls blast and then filter the BLAST hits. Default is megablast.
"""
task_choices = ("blastn", "blastn-short", "dc-megablast", \
"megablast", "vecscreen")
p = OptionParser(blast.__doc__)
p.set_align(pctid=None, evalue=.01)
p.add_option("--wordsize", type="int", help="Word size [default: %default]")
p.add_option("--best", default=1, type="int",
help="Only look for best N hits [default: %default]")
p.add_option("--task", default="megablast", choices=task_choices,
help="Task of the blastn [default: %default]")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
reffasta, queryfasta = args
q = op.basename(queryfasta).split(".")[0]
r = op.basename(reffasta).split(".")[0]
blastfile = "{0}.{1}.blast".format(q, r)
run_megablast(infile=queryfasta, outfile=blastfile, db=reffasta,
wordsize=opts.wordsize, pctid=opts.pctid, evalue=opts.evalue,
hitlen=None, best=opts.best, task=opts.task, cpus=opts.cpus)
return blastfile
def deduplicate(args):
"""
%prog deduplicate fastafile
Wraps `cd-hit-est` to remove duplicate sequences.
"""
p = OptionParser(deduplicate.__doc__)
p.set_align(pctid=98)
p.add_option("--fast",
default=False,
action="store_true",
help="Place sequence in the first cluster")
p.add_option("--consensus",
default=False,
action="store_true",
help="Compute consensus sequences")
p.add_option("--reads",
default=False,
action="store_true",
help="Use `cd-hit-454` to deduplicate [default: %default]")
p.add_option("--samestrand",
default=False,
action="store_true",
help="Enforce same strand alignment")
p.set_home("cdhit")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastafile, = args
identity = opts.pctid / 100.
ocmd = "cd-hit-454" if opts.reads else "cd-hit-est"
cmd = op.join(opts.cdhit_home, ocmd)
cmd += " -c {0}".format(identity)
if ocmd == "cd-hit-est":
cmd += " -d 0" # include complete defline
if opts.samestrand:
cmd += " -r 0"
if not opts.fast:
cmd += " -g 1"
dd = fastafile + ".P{0}.cdhit".format(opts.pctid)
clstr = dd + ".clstr"
cmd += " -M 0 -T {0} -i {1} -o {2}".format(opts.cpus, fastafile, dd)
if need_update(fastafile, (dd, clstr)):
sh(cmd)
if opts.consensus:
cons = dd + ".consensus"
cmd = op.join(opts.cdhit_home, "cdhit-cluster-consensus")
cmd += " clustfile={0} fastafile={1} output={2} maxlen=1".\
format(clstr, fastafile, cons)
if need_update((clstr, fastafile), cons):
sh(cmd)
return dd
def deduplicate(args):
"""
%prog deduplicate fastafile
Wraps `cd-hit-est` to remove duplicate sequences.
"""
p = OptionParser(deduplicate.__doc__)
p.set_align(pctid=98)
p.add_option("--reads", default=False, action="store_true",
help="Use `cd-hit-454` to deduplicate [default: %default]")
p.add_option("--samestrand", default=False, action="store_true",
help="Enforce same strand alignment [%default: %default]")
p.set_home("cdhit")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastafile, = args
identity = opts.pctid / 100.
cmd = "cd-hit-454" if opts.reads else "cd-hit-est"
cmd = op.join(opts.cdhit_home, cmd)
cmd += " -c {0}".format(identity)
cmd += " -d 0" # include complete defline
if opts.samestrand:
cmd += " -r 0"
cmd += " -M 0 -T {0} -i {1} -o {1}.cdhit".format(opts.cpus, fastafile)
sh(cmd)
dd = fastafile + ".cdhit"
return dd
def blat(args):
"""
%prog blat ref.fasta query.fasta
Calls blat and filters BLAST hits.
"""
p = OptionParser(blat.__doc__)
p.set_align(pctid=95, hitlen=30)
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
reffasta, queryfasta = args
blastfile = get_outfile(reffasta, queryfasta, suffix="blat")
run_blat(
infile=queryfasta,
outfile=blastfile,
db=reffasta,
pctid=opts.pctid,
hitlen=opts.hitlen,
cpus=opts.cpus,
overwrite=False,
)
return blastfile
def filter(args):
"""
%prog filter <deltafile|coordsfile>
Produce a new delta/coords file and filter based on id% or cov%.
Use `delta-filter` for .delta file.
"""
p = OptionParser(filter.__doc__)
p.set_align(pctid=0, hitlen=0)
p.add_option("--overlap",
default=False,
action="store_true",
help="Print overlap status (e.g. terminal, contained)")
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
pctid = opts.pctid
hitlen = opts.hitlen
filename, = args
if pctid == 0 and hitlen == 0:
return filename
pf, suffix = filename.rsplit(".", 1)
outfile = "".join((pf, ".P{0}L{1}.".format(int(pctid),
int(hitlen)), suffix))
if not need_update(filename, outfile):
return outfile
if suffix == "delta":
cmd = "delta-filter -i {0} -l {1} {2}".format(pctid, hitlen, filename)
sh(cmd, outfile=outfile)
return outfile
fp = open(filename)
fw = must_open(outfile, "w")
for row in fp:
try:
c = CoordsLine(row)
except AssertionError:
continue
if c.identity < pctid:
continue
if c.len2 < hitlen:
continue
if opts.overlap and not c.overlap:
continue
outrow = row.rstrip()
if opts.overlap:
ov = Overlap_types[c.overlap]
outrow += "\t" + ov
print >> fw, outrow
return outfile
def dedup(args):
"""
%prog dedup scaffolds.fasta
Remove redundant contigs with CD-HIT. This is run prior to
assembly.sspace.embed().
"""
from jcvi.formats.fasta import gaps
from jcvi.apps.cdhit import deduplicate, ids
p = OptionParser(dedup.__doc__)
p.set_align(pctid=GoodPct)
p.set_mingap(default=10)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
scaffolds, = args
mingap = opts.mingap
splitfile, oagpfile, cagpfile = gaps(
[scaffolds, "--split", "--mingap={0}".format(mingap)])
dd = splitfile + ".cdhit"
clstrfile = dd + ".clstr"
idsfile = dd + ".ids"
if need_update(splitfile, clstrfile):
deduplicate([splitfile, "--pctid={0}".format(opts.pctid)])
if need_update(clstrfile, idsfile):
ids([clstrfile])
agp = AGP(cagpfile)
reps = set(x.split()[-1] for x in open(idsfile))
pf = scaffolds.rsplit(".", 1)[0]
dedupagp = pf + ".dedup.agp"
fw = open(dedupagp, "w")
ndropped = ndroppedbases = 0
for a in agp:
if not a.is_gap and a.component_id not in reps:
span = a.component_span
logging.debug("Drop component {0} ({1})".\
format(a.component_id, span))
ndropped += 1
ndroppedbases += span
continue
print >> fw, a
fw.close()
logging.debug("Dropped components: {0}, Dropped bases: {1}".\
format(ndropped, ndroppedbases))
logging.debug("Deduplicated file written to `{0}`.".format(dedupagp))
tidyagp = tidy([dedupagp, splitfile])
dedupfasta = pf + ".dedup.fasta"
build([tidyagp, dd, dedupfasta])
return dedupfasta
def dedup(args):
"""
%prog dedup scaffolds.fasta
Remove redundant contigs with CD-HIT. This is run prior to
assembly.sspace.embed().
"""
from jcvi.formats.fasta import gaps
from jcvi.apps.cdhit import deduplicate, ids
p = OptionParser(dedup.__doc__)
p.set_align(pctid=GoodPct)
p.set_mingap(default=10)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
scaffolds, = args
mingap = opts.mingap
splitfile, oagpfile, cagpfile = gaps([scaffolds, "--split", "--mingap={0}".format(mingap)])
dd = splitfile + ".cdhit"
clstrfile = dd + ".clstr"
idsfile = dd + ".ids"
if need_update(splitfile, clstrfile):
deduplicate([splitfile, "--pctid={0}".format(opts.pctid)])
if need_update(clstrfile, idsfile):
ids([clstrfile])
agp = AGP(cagpfile)
reps = set(x.split()[-1] for x in open(idsfile))
pf = scaffolds.rsplit(".", 1)[0]
dedupagp = pf + ".dedup.agp"
fw = open(dedupagp, "w")
ndropped = ndroppedbases = 0
for a in agp:
if not a.is_gap and a.component_id not in reps:
span = a.component_span
logging.debug("Drop component {0} ({1})".\
format(a.component_id, span))
ndropped += 1
ndroppedbases += span
continue
print >> fw, a
fw.close()
logging.debug("Dropped components: {0}, Dropped bases: {1}".\
format(ndropped, ndroppedbases))
logging.debug("Deduplicated file written to `{0}`.".format(dedupagp))
tidyagp = tidy([dedupagp, splitfile])
dedupfasta = pf + ".dedup.fasta"
build([tidyagp, dd, dedupfasta])
return dedupfasta
def cluster(args):
"""
%prog cluster prefix fastqfiles
Use `vsearch` to remove duplicate reads. This routine is heavily influenced
by PyRAD: <https://github.com/dereneaton/pyrad>.
"""
p = OptionParser(cluster.__doc__)
add_consensus_options(p)
p.set_align(pctid=95)
p.set_outdir()
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) < 2:
sys.exit(not p.print_help())
prefix = args[0]
fastqfiles = args[1:]
cpus = opts.cpus
pctid = opts.pctid
mindepth = opts.mindepth
minlength = opts.minlength
fastafile, qualfile = fasta(fastqfiles + [
"--seqtk",
"--outdir={0}".format(opts.outdir),
"--outfile={0}".format(prefix + ".fasta"),
])
prefix = op.join(opts.outdir, prefix)
pf = prefix + ".P{0}".format(pctid)
derepfile = prefix + ".derep"
if need_update(fastafile, derepfile):
derep(fastafile, derepfile, minlength, cpus)
userfile = pf + ".u"
notmatchedfile = pf + ".notmatched"
if need_update(derepfile, userfile):
cluster_smallmem(derepfile, userfile, notmatchedfile, minlength, pctid,
cpus)
clustfile = pf + ".clust"
if need_update((derepfile, userfile, notmatchedfile), clustfile):
makeclust(derepfile,
userfile,
notmatchedfile,
clustfile,
mindepth=mindepth)
clustSfile = pf + ".clustS"
if need_update(clustfile, clustSfile):
parallel_musclewrap(clustfile, cpus)
statsfile = pf + ".stats"
if need_update(clustSfile, statsfile):
makestats(clustSfile, statsfile, mindepth=mindepth)
def filter(args):
"""
%prog filter <deltafile|coordsfile>
Produce a new delta/coords file and filter based on id% or cov%.
Use `delta-filter` for .delta file.
"""
p = OptionParser(filter.__doc__)
p.set_align(pctid=0, hitlen=0)
p.add_option("--overlap", default=False, action="store_true",
help="Print overlap status (e.g. terminal, contained)")
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
pctid = opts.pctid
hitlen = opts.hitlen
filename, = args
if pctid == 0 and hitlen == 0:
return filename
pf, suffix = filename.rsplit(".", 1)
outfile = "".join((pf, ".P{0}L{1}.".format(int(pctid), int(hitlen)), suffix))
if not need_update(filename, outfile):
return outfile
if suffix == "delta":
cmd = "delta-filter -i {0} -l {1} {2}".format(pctid, hitlen, filename)
sh(cmd, outfile=outfile)
return outfile
fp = open(filename)
fw = must_open(outfile, "w")
for row in fp:
try:
c = CoordsLine(row)
except AssertionError:
continue
if c.identity < pctid:
continue
if c.len2 < hitlen:
continue
if opts.overlap and not c.overlap:
continue
outrow = row.rstrip()
if opts.overlap:
ov = Overlap_types[c.overlap]
outrow += "\t" + ov
print >> fw, outrow
return outfile
def deduplicate(args):
"""
%prog deduplicate fastafile
Wraps `cd-hit-est` to remove duplicate sequences.
"""
p = OptionParser(deduplicate.__doc__)
p.set_align(pctid=96, pctcov=0)
p.add_option("--fast", default=False, action="store_true",
help="Place sequence in the first cluster")
p.add_option("--consensus", default=False, action="store_true",
help="Compute consensus sequences")
p.add_option("--reads", default=False, action="store_true",
help="Use `cd-hit-454` to deduplicate [default: %default]")
p.add_option("--samestrand", default=False, action="store_true",
help="Enforce same strand alignment")
p.set_home("cdhit")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastafile, = args
identity = opts.pctid / 100.
fastafile, qualfile = fasta([fastafile, "--seqtk"])
ocmd = "cd-hit-454" if opts.reads else "cd-hit-est"
cmd = op.join(opts.cdhit_home, ocmd)
cmd += " -c {0}".format(identity)
if ocmd == "cd-hit-est":
cmd += " -d 0" # include complete defline
if opts.samestrand:
cmd += " -r 0"
if not opts.fast:
cmd += " -g 1"
if opts.pctcov != 0:
cmd += " -aL {0} -aS {0}".format(opts.pctcov / 100.)
dd = fastafile + ".P{0}.cdhit".format(opts.pctid)
clstr = dd + ".clstr"
cmd += " -M 0 -T {0} -i {1} -o {2}".format(opts.cpus, fastafile, dd)
if need_update(fastafile, (dd, clstr)):
sh(cmd)
if opts.consensus:
cons = dd + ".consensus"
cmd = op.join(opts.cdhit_home, "cdhit-cluster-consensus")
cmd += " clustfile={0} fastafile={1} output={2} maxlen=1".\
format(clstr, fastafile, cons)
if need_update((clstr, fastafile), cons):
sh(cmd)
return dd
def tandem(args):
"""
%prog tandem blast_file cds_file bed_file [options]
Find tandem gene clusters that are separated by N genes, based on filtered
blast_file by enforcing alignments between any two genes at least 50%
(or user specified value) of either gene.
pep_file can also be used in same manner.
"""
p = OptionParser(tandem.__doc__)
p.add_option("--tandem_Nmax",
dest="tandem_Nmax",
type="int",
default=3,
help="merge tandem genes within distance [default: %default]")
p.add_option("--percent_overlap",
type="int",
default=50,
help="tandem genes have >=x% aligned sequence, x=0-100 \
[default: %default]")
p.set_align(evalue=.01)
p.add_option("--not_self",
default=False,
action="store_true",
help="provided is not self blast file [default: %default]")
p.add_option("--strip_gene_name",
dest="sep",
type="string",
default=".",
help="strip alternative splicing. Use None for no stripping. \
[default: %default]")
p.add_option(
"--genefamily",
dest="genefam",
action="store_true",
help="compile gene families based on similarity [default: %default]")
p.set_outfile()
opts, args = p.parse_args(args)
if len(args) != 3:
sys.exit(not p.print_help())
blast_file, cds_file, bed_file = args
N = opts.tandem_Nmax
P = opts.percent_overlap
is_self = not opts.not_self
sep = opts.sep
ofile = opts.outfile
tandem_main(blast_file, cds_file, bed_file, N=N, P=P, is_self=is_self, \
evalue=opts.evalue, strip_name=sep, ofile=ofile, genefam=opts.genefam)
def cluster(args):
"""
%prog cluster prefix fastqfiles
Use `vsearch` to remove duplicate reads. This routine is heavily influenced
by PyRAD: <https://github.com/dereneaton/pyrad>.
"""
p = OptionParser(cluster.__doc__)
add_consensus_options(p)
p.set_align(pctid=95)
p.set_outdir()
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) < 2:
sys.exit(not p.print_help())
prefix = args[0]
fastqfiles = args[1:]
cpus = opts.cpus
pctid = opts.pctid
mindepth = opts.mindepth
minlength = opts.minlength
fastafile, qualfile = fasta(fastqfiles + ["--seqtk",
"--outdir={0}".format(opts.outdir),
"--outfile={0}".format(prefix + ".fasta")])
prefix = op.join(opts.outdir, prefix)
pf = prefix + ".P{0}".format(pctid)
derepfile = prefix + ".derep"
if need_update(fastafile, derepfile):
derep(fastafile, derepfile, minlength, cpus)
userfile = pf + ".u"
notmatchedfile = pf + ".notmatched"
if need_update(derepfile, userfile):
cluster_smallmem(derepfile, userfile, notmatchedfile,
minlength, pctid, cpus)
clustfile = pf + ".clust"
if need_update((derepfile, userfile, notmatchedfile), clustfile):
makeclust(derepfile, userfile, notmatchedfile, clustfile,
mindepth=mindepth)
clustSfile = pf + ".clustS"
if need_update(clustfile, clustSfile):
parallel_musclewrap(clustfile, cpus)
statsfile = pf + ".stats"
if need_update(clustSfile, statsfile):
makestats(clustSfile, statsfile, mindepth=mindepth)
def main(args):
"""
%prog deltafile
Plot one query. Extract the references that have major matches to this
query. Control "major" by option --refcov.
"""
p = OptionParser(main.__doc__)
p.add_option("--refids", help="Use subset of contigs in the ref")
p.add_option("--refcov", default=.01, type="float",
help="Minimum reference coverage [default: %default]")
p.add_option("--all", default=False, action="store_true",
help="Plot one pdf file per ref in refidsfile [default: %default]")
p.add_option("--color", default="similarity",
choices=("similarity", "direction", "none"),
help="Color the dots based on")
p.add_option("--nolayout", default=False, action="store_true",
help="Do not rearrange contigs")
p.set_align(pctid=0, hitlen=0)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
deltafile, = args
reffasta, queryfasta = open(deltafile).readline().split()
color = opts.color
layout = not opts.nolayout
prefix = op.basename(deltafile).split(".")[0]
qsizes = Sizes(queryfasta).mapping
rsizes = Sizes(reffasta).mapping
refs = SetFile(opts.refids) if opts.refids else set(rsizes.keys())
refcov = opts.refcov
pctid = opts.pctid
hitlen = opts.hitlen
deltafile = filter([deltafile, "--pctid={0}".format(pctid),
"--hitlen={0}".format(hitlen)])
if opts.all:
for r in refs:
pdffile = plot_some_queries([r], qsizes, rsizes, deltafile, refcov,
prefix=prefix, color=color,
layout=layout)
if pdffile:
sh("mv {0} {1}.pdf".format(pdffile, r))
else:
plot_some_queries(refs, qsizes, rsizes,
deltafile, refcov,
prefix=prefix, color=color, layout=layout)
def main(args):
"""
%prog deltafile
Plot one query. Extract the references that have major matches to this
query. Control "major" by option --refcov.
"""
p = OptionParser(main.__doc__)
p.add_option("--refids", help="Use subset of contigs in the ref")
p.add_option("--refcov", default=.01, type="float",
help="Minimum reference coverage [default: %default]")
p.add_option("--all", default=False, action="store_true",
help="Plot one pdf file per ref in refidsfile [default: %default]")
p.add_option("--color", default="similarity",
choices=("similarity", "direction", "none"),
help="Color the dots based on")
p.add_option("--nolayout", default=False, action="store_true",
help="Do not rearrange contigs")
p.set_align(pctid=0, hitlen=0)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
deltafile, = args
reffasta, queryfasta = open(deltafile).readline().split()
color = opts.color
layout = not opts.nolayout
prefix = op.basename(deltafile).split(".")[0]
qsizes = Sizes(queryfasta).mapping
rsizes = Sizes(reffasta).mapping
refs = SetFile(opts.refids) if opts.refids else set(rsizes.keys())
refcov = opts.refcov
pctid = opts.pctid
hitlen = opts.hitlen
deltafile = filter([deltafile, "--pctid={0}".format(pctid),
"--hitlen={0}".format(hitlen)])
if opts.all:
for r in refs:
pdffile = plot_some_queries([r], qsizes, rsizes, deltafile, refcov,
prefix=prefix, color=color,
layout=layout)
if pdffile:
sh("mv {0} {1}.pdf".format(pdffile, r))
else:
plot_some_queries(refs, qsizes, rsizes,
deltafile, refcov,
prefix=prefix, color=color, layout=layout)
def main(args):
"""
%prog deltafile refidsfile query.fasta ref.fasta
Plot one query. Extract the references that have major matches to this
query. Control "major" by option --refcov.
"""
p = OptionParser(main.__doc__)
p.add_option("--refcov",
default=.01,
type="float",
help="Minimum reference coverage [default: %default]")
p.add_option(
"--all",
default=False,
action="store_true",
help="Plot one pdf file per ref in refidsfile [default: %default]")
p.set_align(pctid=96, hitlen=500)
opts, args = p.parse_args(args)
if len(args) != 4:
sys.exit(not p.print_help())
deltafile, refidsfile, queryfasta, reffasta = args
qsizes = Sizes(queryfasta).mapping
rsizes = Sizes(reffasta).mapping
refs = SetFile(refidsfile)
refcov = opts.refcov
pctid = opts.pctid
hitlen = opts.hitlen
deltafile = filter([
deltafile, "--pctid={0}".format(pctid), "--hitlen={0}".format(hitlen)
])
if opts.all:
for r in refs:
pdffile = plot_some_queries([r], qsizes, rsizes, deltafile, refcov)
if pdffile:
sh("mv {0} {1}.pdf".format(pdffile, r))
else:
plot_some_queries(refs, qsizes, rsizes, deltafile, refcov)
def tandem(args):
"""
%prog tandem blast_file cds_file bed_file [options]
Find tandem gene clusters that are separated by N genes, based on filtered
blast_file by enforcing alignments between any two genes at least 50%
(or user specified value) of either gene.
pep_file can also be used in same manner.
"""
p = OptionParser(tandem.__doc__)
p.add_option("--tandem_Nmax", dest="tandem_Nmax", type="int", default=3,
help="merge tandem genes within distance [default: %default]")
p.add_option("--percent_overlap", type="int", default=50,
help="tandem genes have >=x% aligned sequence, x=0-100 \
[default: %default]")
p.set_align(evalue=.01)
p.add_option("--not_self", default=False, action="store_true",
help="provided is not self blast file [default: %default]")
p.add_option("--strip_gene_name", dest="sep", type="string", default=".",
help="strip alternative splicing. Use None for no stripping. \
[default: %default]")
p.add_option("--genefamily", dest="genefam", action="store_true",
help="compile gene families based on similarity [default: %default]")
p.set_outfile()
opts, args = p.parse_args(args)
if len(args) != 3:
sys.exit(not p.print_help())
blast_file, cds_file, bed_file = args
N = opts.tandem_Nmax
P = opts.percent_overlap
is_self = not opts.not_self
sep = opts.sep
ofile = opts.outfile
tandem_main(blast_file, cds_file, bed_file, N=N, P=P, is_self=is_self, \
evalue=opts.evalue, strip_name=sep, ofile=ofile, genefam=opts.genefam)
def screen(args):
"""
%prog screen scaffolds.fasta library.fasta
Screen sequences against FASTA library. Sequences that have 95% id and 50%
cov will be removed by default.
"""
from jcvi.apps.align import blast
from jcvi.formats.blast import covfilter
p = OptionParser(screen.__doc__)
p.set_align(pctid=95, pctcov=50)
p.add_option("--best",
default=1,
type="int",
help="Get the best N hit [default: %default]")
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
scaffolds, library = args
pctidflag = "--pctid={0}".format(opts.pctid)
blastfile = blast(
[library, scaffolds, pctidflag, "--best={0}".format(opts.best)])
idsfile = blastfile.rsplit(".", 1)[0] + ".ids"
covfilter([
blastfile, scaffolds, "--union", "--ids=" + idsfile, pctidflag,
"--pctcov={0}".format(opts.pctcov)
])
pf = scaffolds.rsplit(".", 1)[0]
nf = pf + ".screen.fasta"
cmd = "faSomeRecords {0} -exclude {1} {2}".format(scaffolds, idsfile, nf)
sh(cmd)
logging.debug("Screened FASTA written to `{0}`.".format(nf))
return nf
def deduplicate(args):
"""
%prog deduplicate fastafile
Wraps `cd-hit-est` to remove duplicate sequences.
"""
p = OptionParser(deduplicate.__doc__)
p.set_align(pctid=98)
p.add_option("--reads",
default=False,
action="store_true",
help="Use `cd-hit-454` to deduplicate [default: %default]")
p.add_option("--samestrand",
default=False,
action="store_true",
help="Enforce same strand alignment")
p.set_home("cdhit")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastafile, = args
identity = opts.pctid / 100.
cmd = "cd-hit-454" if opts.reads else "cd-hit-est"
cmd = op.join(opts.cdhit_home, cmd)
cmd += " -c {0}".format(identity)
cmd += " -d 0" # include complete defline
if opts.samestrand:
cmd += " -r 0"
cmd += " -M 0 -T {0} -i {1} -o {1}.cdhit".format(opts.cpus, fastafile)
sh(cmd)
dd = fastafile + ".cdhit"
return dd
def screen(args):
"""
%prog screen scaffolds.fasta library.fasta
Screen sequences against FASTA library. Sequences that have 95% id and 50%
cov will be removed by default.
"""
from jcvi.apps.align import blast
from jcvi.formats.blast import covfilter
p = OptionParser(screen.__doc__)
p.set_align(pctid=95, pctcov=50)
p.add_option("--best", default=1, type="int",
help="Get the best N hit [default: %default]")
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
scaffolds, library = args
pctidflag = "--pctid={0}".format(opts.pctid)
blastfile = blast([library, scaffolds, pctidflag,
"--best={0}".format(opts.best)])
idsfile = blastfile.rsplit(".", 1)[0] + ".ids"
covfilter([blastfile, scaffolds, "--ids=" + idsfile,
pctidflag, "--pctcov={0}".format(opts.pctcov)])
pf = scaffolds.rsplit(".", 1)[0]
nf = pf + ".screen.fasta"
cmd = "faSomeRecords {0} -exclude {1} {2}".format(scaffolds, idsfile, nf)
sh(cmd)
logging.debug("Screened FASTA written to `{0}`.".format(nf))
return nf
def anneal(args):
"""
%prog anneal agpfile contigs.fasta
Merge adjacent overlapping contigs and make new AGP file.
By default it will also anneal lines like these together (unless --nozipshreds):
scaffold4 1 1608 1 W ca-bacs.5638.frag11.22000-23608 1 1608 -
scaffold4 1609 1771 2 N 163 scaffold yes paired-ends
scaffold4 1772 3771 3 W ca-bacs.5638.frag10.20000-22000 1 2000 -
These are most likely shreds, which we look for based on names.
"""
p = OptionParser(anneal.__doc__)
p.set_align(pctid=GoodPct, hitlen=GoodOverlap)
p.add_option("--hang", default=GoodOverhang, type="int",
help="Maximum overhang length [default: %default]")
p.set_outdir(outdir="outdir")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
agpfile, contigs = args
outdir = opts.outdir
if not op.exists(outdir):
mkdir(outdir)
cmd = "faSplit byname {0} {1}/".format(contigs, outdir)
sh(cmd)
cutoff = Cutoff(opts.pctid, opts.hitlen, opts.hang)
logging.debug(str(cutoff))
agp = AGP(agpfile)
blastfile = agpfile.replace(".agp", ".blast")
if not op.exists(blastfile):
populate_blastfile(blastfile, agp, outdir, opts)
assert op.exists(blastfile)
logging.debug("File `{0}` found. Start loading.".format(blastfile))
blast = BlastSlow(blastfile).to_dict()
annealedagp = "annealed.agp"
annealedfasta = "annealed.fasta"
newagp = deepcopy(agp)
clrstore = {}
for a, b, qreverse in agp.iter_paired_components():
aid = a.component_id
bid = b.component_id
pair = (aid, bid)
if pair in blast:
bl = blast[pair]
else:
oopts = get_overlap_opts(aid, bid, qreverse, outdir, opts)
o = overlap(oopts)
if not o:
continue
bl = o.blastline
o = Overlap(bl, a.component_span, b.component_span,
cutoff, qreverse=qreverse)
if aid not in clrstore:
clrstore[aid] = CLR.from_agpline(a)
if bid not in clrstore:
clrstore[bid] = CLR.from_agpline(b)
aclr, bclr = clrstore[aid], clrstore[bid]
o.print_graphic()
if o.anneal(aclr, bclr):
newagp.delete_between(aid, bid, verbose=True)
if o.otype == 2: # b ~ a
o = o.swapped
o.print_graphic()
if o.anneal(bclr, aclr):
newagp.switch_between(bid, aid, verbose=True)
newagp.delete_between(bid, aid, verbose=True)
logging.debug("A total of {0} components with modified CLR.".\
format(len(clrstore)))
for cid, c in clrstore.items():
if c.is_valid:
continue
print >> sys.stderr, "Remove {0}".format(c)
newagp.convert_to_gap(cid, verbose=True)
# Update all ranges that has modified clr
for a in newagp:
if a.is_gap:
continue
aid = a.component_id
if aid in clrstore:
c = clrstore[aid]
a.component_beg = c.start
a.component_end = c.end
newagp.print_to_file(annealedagp)
tidyagp = tidy([annealedagp, contigs])
build([tidyagp, contigs, annealedfasta])
return annealedfasta
def novo(args):
"""
%prog novo reads.fastq
Reference-free tGBS pipeline.
"""
from jcvi.assembly.kmer import jellyfish, histogram
from jcvi.assembly.preprocess import diginorm
from jcvi.formats.fasta import filter as fasta_filter, format
from jcvi.apps.cdhit import filter as cdhit_filter
p = OptionParser(novo.__doc__)
p.add_option("--technology", choices=("illumina", "454", "iontorrent"),
default="iontorrent", help="Sequencing platform")
p.add_option("--dedup", choices=("uclust", "cdhit"),
default="cdhit", help="Dedup algorithm")
p.set_depth(depth=50)
p.set_align(pctid=96)
p.set_home("cdhit", default="/usr/local/bin/")
p.set_home("fiona", default="/usr/local/bin/")
p.set_home("jellyfish", default="/usr/local/bin/")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastqfile, = args
cpus = opts.cpus
depth = opts.depth
pf, sf = fastqfile.rsplit(".", 1)
diginormfile = pf + ".diginorm." + sf
if need_update(fastqfile, diginormfile):
diginorm([fastqfile, "--single", "--depth={0}".format(depth)])
keepabund = fastqfile + ".keep.abundfilt"
sh("cp -s {0} {1}".format(keepabund, diginormfile))
jf = pf + "-K23.histogram"
if need_update(diginormfile, jf):
jellyfish([diginormfile, "--prefix={0}".format(pf),
"--cpus={0}".format(cpus),
"--jellyfish_home={0}".format(opts.jellyfish_home)])
genomesize = histogram([jf, pf, "23"])
fiona = pf + ".fiona.fa"
if need_update(diginormfile, fiona):
cmd = op.join(opts.fiona_home, "fiona")
cmd += " -g {0} -nt {1} --sequencing-technology {2}".\
format(genomesize, cpus, opts.technology)
cmd += " -vv {0} {1}".format(diginormfile, fiona)
logfile = pf + ".fiona.log"
sh(cmd, outfile=logfile, errfile=logfile)
dedup = opts.dedup
pctid = opts.pctid
cons = fiona + ".P{0}.{1}.consensus.fasta".format(pctid, dedup)
if need_update(fiona, cons):
if dedup == "cdhit":
deduplicate([fiona, "--consensus", "--reads",
"--pctid={0}".format(pctid),
"--cdhit_home={0}".format(opts.cdhit_home)])
else:
uclust([fiona, "--pctid={0}".format(pctid)])
filteredfile = pf + ".filtered.fasta"
if need_update(cons, filteredfile):
covfile = pf + ".cov.fasta"
cdhit_filter([cons, "--outfile={0}".format(covfile),
"--minsize={0}".format(depth / 5)])
fasta_filter([covfile, "50", "--outfile={0}".format(filteredfile)])
finalfile = pf + ".final.fasta"
if need_update(filteredfile, finalfile):
format([filteredfile, finalfile, "--sequential=replace",
"--prefix={0}_".format(pf)])
def novo2(args):
"""
%prog novo2 trimmed projectname
Reference-free tGBS pipeline v2.
"""
p = OptionParser(novo2.__doc__)
p.set_fastq_names()
p.set_align(pctid=95)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
trimmed, pf = args
pctid = opts.pctid
reads, samples = scan_read_files(trimmed, opts.names)
# Set up directory structure
clustdir = "uclust"
acdir ="allele_counts"
for d in (clustdir, acdir):
mkdir(d)
mm = MakeManager()
clustfiles = []
# Step 0 - clustering within sample
for s in samples:
flist = [x for x in reads if op.basename(x).split(".")[0] == s]
outfile = s + ".P{0}.clustS".format(pctid)
outfile = op.join(clustdir, outfile)
cmd = "python -m jcvi.apps.uclust cluster --cpus=8"
cmd += " {0} {1}".format(s, " ".join(flist))
cmd += " --outdir={0}".format(clustdir)
cmd += " --pctid={0}".format(pctid)
mm.add(flist, outfile, cmd)
clustfiles.append(outfile)
# Step 1 - make consensus within sample
allcons = []
for s, clustfile in zip(samples, clustfiles):
outfile = s + ".P{0}.consensus".format(pctid)
outfile = op.join(clustdir, outfile)
cmd = "python -m jcvi.apps.uclust consensus"
cmd += " {0}".format(clustfile)
mm.add(clustfile, outfile, cmd)
allcons.append(outfile)
# Step 2 - clustering across samples
clustSfile = pf + ".P{0}.clustS".format(pctid)
cmd = "python -m jcvi.apps.uclust mcluster {0}".format(" ".join(allcons))
cmd += " --prefix={0}".format(pf)
mm.add(allcons, clustSfile, cmd)
# Step 3 - make consensus across samples
locifile = pf + ".P{0}.loci".format(pctid)
cmd = "python -m jcvi.apps.uclust mconsensus {0}".format(" ".join(allcons))
cmd += " --prefix={0}".format(pf)
mm.add(allcons + [clustSfile], locifile, cmd)
mm.write()
def novo(args):
"""
%prog novo reads.fastq
Reference-free tGBS pipeline.
"""
from jcvi.assembly.kmer import jellyfish, histogram
from jcvi.assembly.preprocess import diginorm
from jcvi.formats.fasta import filter as fasta_filter, format
from jcvi.apps.cdhit import filter as cdhit_filter
p = OptionParser(novo.__doc__)
p.add_option("--technology",
choices=("illumina", "454", "iontorrent"),
default="iontorrent",
help="Sequencing platform")
p.add_option("--dedup",
choices=("uclust", "cdhit"),
default="cdhit",
help="Dedup algorithm")
p.set_depth(depth=50)
p.set_align(pctid=96)
p.set_home("cdhit")
p.set_home("fiona")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
fastqfile, = args
cpus = opts.cpus
depth = opts.depth
pf, sf = fastqfile.rsplit(".", 1)
diginormfile = pf + ".diginorm." + sf
if need_update(fastqfile, diginormfile):
diginorm([fastqfile, "--single", "--depth={0}".format(depth)])
keepabund = fastqfile + ".keep.abundfilt"
sh("cp -s {0} {1}".format(keepabund, diginormfile))
jf = pf + "-K23.histogram"
if need_update(diginormfile, jf):
jellyfish([
diginormfile, "--prefix={0}".format(pf), "--cpus={0}".format(cpus)
])
genomesize = histogram([jf, pf, "23"])
fiona = pf + ".fiona.fa"
if need_update(diginormfile, fiona):
cmd = op.join(opts.fiona_home, "bin/fiona")
cmd += " -g {0} -nt {1} --sequencing-technology {2}".\
format(genomesize, cpus, opts.technology)
cmd += " -vv {0} {1}".format(diginormfile, fiona)
logfile = pf + ".fiona.log"
sh(cmd, outfile=logfile, errfile=logfile)
dedup = opts.dedup
pctid = opts.pctid
cons = fiona + ".P{0}.{1}.consensus.fasta".format(pctid, dedup)
if need_update(fiona, cons):
if dedup == "cdhit":
deduplicate([
fiona, "--consensus", "--reads", "--pctid={0}".format(pctid),
"--cdhit_home={0}".format(opts.cdhit_home)
])
else:
uclust([fiona, "--pctid={0}".format(pctid)])
filteredfile = pf + ".filtered.fasta"
if need_update(cons, filteredfile):
covfile = pf + ".cov.fasta"
cdhit_filter([
cons, "--outfile={0}".format(covfile),
"--minsize={0}".format(depth / 5)
])
fasta_filter([covfile, "50", "--outfile={0}".format(filteredfile)])
finalfile = pf + ".final.fasta"
if need_update(filteredfile, finalfile):
format([
filteredfile, finalfile, "--sequential=replace",
"--prefix={0}_".format(pf)
])
def main():
"""
%prog database.fa query.fa [options]
Wrapper for NCBI BLAST+.
"""
p = OptionParser(main.__doc__)
p.add_option("--format", default=" \'6 qseqid sseqid pident length " \
"mismatch gapopen qstart qend sstart send evalue bitscore\' ",
help="0-11, learn more with \"blastp -help\". [default: %default]")
p.add_option("--path", dest="blast_path", default=None,
help="specify BLAST+ path including the program name")
p.add_option("--prog", dest="blast_program", default="blastp",
help="specify BLAST+ program to use. See complete list here: " \
"http://www.ncbi.nlm.nih.gov/books/NBK52640/#chapter1.Installation"
" [default: %default]")
p.set_align(evalue=.01)
p.add_option("--best", default=1, type="int",
help="Only look for best N hits [default: %default]")
p.set_cpus()
p.add_option("--nprocs", default=1, type="int",
help="number of BLAST processes to run in parallel. " + \
"split query.fa into `nprocs` chunks, " + \
"each chunk uses -num_threads=`cpus`")
p.set_params()
p.set_outfile()
opts, args = p.parse_args()
if len(args) != 2 or opts.blast_program is None:
sys.exit(not p.print_help())
bfasta_fn, afasta_fn = args
for fn in (afasta_fn, bfasta_fn):
assert op.exists(fn)
afasta_fn = op.abspath(afasta_fn)
bfasta_fn = op.abspath(bfasta_fn)
out_fh = must_open(opts.outfile, "w")
extra = opts.extra
blast_path = opts.blast_path
blast_program = opts.blast_program
blast_bin = blast_path or blast_program
if op.basename(blast_bin) != blast_program:
blast_bin = op.join(blast_bin, blast_program)
nprocs, cpus = opts.nprocs, opts.cpus
if nprocs > 1:
logging.debug("Dispatch job to %d processes" % nprocs)
outdir = "outdir"
fs = split([afasta_fn, outdir, str(nprocs)])
queries = fs.names
else:
queries = [afasta_fn]
dbtype = "prot" if op.basename(blast_bin) in ("blastp", "blastx") \
else "nucl"
db = bfasta_fn
if dbtype == "prot":
nin = db + ".pin"
else:
nin = db + ".nin"
nin00 = db + ".00.nin"
nin = nin00 if op.exists(nin00) else (db + ".nin")
run_formatdb(infile=db, outfile=nin, dbtype=dbtype)
lock = Lock()
blastplus_template = "{0} -db {1} -outfmt {2}"
blast_cmd = blastplus_template.format(blast_bin, bfasta_fn, opts.format)
blast_cmd += " -evalue {0} -max_target_seqs {1}".\
format(opts.evalue, opts.best)
blast_cmd += " -num_threads {0}".format(cpus)
if extra:
blast_cmd += " " + extra.strip()
args = [(out_fh, blast_cmd, query, lock) for query in queries]
g = Jobs(target=blastplus, args=args)
g.run()
def filter(args):
"""
%prog filter test.blast
Produce a new blast file and filter based on:
- score: >= cutoff
- pctid: >= cutoff
- hitlen: >= cutoff
- evalue: <= cutoff
- self: non-self
- ids: valid ids
use --inverse to obtain the complementary records
"""
p = OptionParser(filter.__doc__)
p.add_option("--score", dest="score", default=0, type="int",
help="Score cutoff [default: %default]")
p.set_align(pctid=95, hitlen=100, evalue=.01)
p.add_option("--self", default=None, choices=("strict", "loose"),
help="Remove self hits. strict: matched names and spans; " \
"loose: matched names [default: %default]")
p.add_option("--ids", default=None,
help="path to tab or comma delimited file containing ids to " \
"retain [default: %default]")
p.add_option("--inverse", action="store_true",
help="Similar to grep -v, inverse [default: %default]")
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
if opts.ids:
ids = set()
for row in must_open(opts.ids):
if row[0] == "#":
continue
row = row.replace(",", "\t")
ids.update(row.split())
else:
ids = None
blastfile, = args
inverse = opts.inverse
outfile = opts.outfile
fp = must_open(blastfile)
score, pctid, hitlen, evalue, selfrule = \
opts.score, opts.pctid, opts.hitlen, opts.evalue, opts.self
newblastfile = blastfile + ".P{0}L{1}".format(int(pctid), hitlen) if \
outfile is None else outfile
fw = must_open(newblastfile, "w")
for row in fp:
if row[0] == '#':
continue
c = BlastLine(row)
if ids:
if c.query in ids and c.subject in ids:
noids = False
else:
noids = True
else:
noids = None
remove = c.score < score or \
c.pctid < pctid or \
c.hitlen < hitlen or \
c.evalue > evalue or \
c.is_self_hit(selfrule) or \
noids
if inverse:
remove = not remove
if not remove:
print >> fw, row.rstrip()
return newblastfile
def covfilter(args):
"""
%prog covfilter blastfile fastafile
Fastafile is used to get the sizes of the queries. Two filters can be
applied, the id% and cov%.
"""
from jcvi.algorithms.supermap import supermap
from jcvi.utils.range import range_union
allowed_iterby = ("query", "query_sbjct")
p = OptionParser(covfilter.__doc__)
p.set_align(pctid=95, pctcov=50)
p.add_option("--scov",
default=False,
action="store_true",
help="Subject coverage instead of query [default: %default]")
p.add_option("--supermap",
action="store_true",
help="Use supermap instead of union")
p.add_option("--ids",
dest="ids",
default=None,
help="Print out the ids that satisfy [default: %default]")
p.add_option("--list",
dest="list",
default=False,
action="store_true",
help="List the id% and cov% per gene [default: %default]")
p.add_option(
"--iterby",
dest="iterby",
default="query",
choices=allowed_iterby,
help="Choose how to iterate through BLAST [default: %default]")
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
blastfile, fastafile = args
pctid = opts.pctid
pctcov = opts.pctcov
union = not opts.supermap
scov = opts.scov
sz = Sizes(fastafile)
sizes = sz.mapping
iterby = opts.iterby
qspair = iterby == "query_sbjct"
if not union:
querysupermap = blastfile + ".query.supermap"
if not op.exists(querysupermap):
supermap(blastfile, filter="query")
blastfile = querysupermap
assert op.exists(blastfile)
covered = 0
mismatches = 0
gaps = 0
alignlen = 0
queries = set()
valid = set()
blast = BlastSlow(blastfile)
iterator = blast.iter_hits_pair if qspair else blast.iter_hits
covidstore = {}
for query, blines in iterator():
blines = list(blines)
queries.add(query)
# per gene report
this_covered = 0
this_alignlen = 0
this_mismatches = 0
this_gaps = 0
this_identity = 0
ranges = []
for b in blines:
if scov:
s, start, stop = b.subject, b.sstart, b.sstop
else:
s, start, stop = b.query, b.qstart, b.qstop
cov_id = s
if b.pctid < pctid:
continue
if start > stop:
start, stop = stop, start
this_covered += stop - start + 1
this_alignlen += b.hitlen
this_mismatches += b.nmismatch
this_gaps += b.ngaps
ranges.append(("1", start, stop))
if ranges:
this_identity = 100. - (this_mismatches +
this_gaps) * 100. / this_alignlen
if union:
this_covered = range_union(ranges)
this_coverage = this_covered * 100. / sizes[cov_id]
covidstore[query] = (this_identity, this_coverage)
if this_identity >= pctid and this_coverage >= pctcov:
valid.add(query)
covered += this_covered
mismatches += this_mismatches
gaps += this_gaps
alignlen += this_alignlen
if opts.list:
if qspair:
allpairs = defaultdict(list)
for (q, s) in covidstore:
allpairs[q].append((q, s))
allpairs[s].append((q, s))
for id, size in sz.iter_sizes():
if id not in allpairs:
print "\t".join((id, "na", "0", "0"))
else:
for qs in allpairs[id]:
this_identity, this_coverage = covidstore[qs]
print "{0}\t{1:.1f}\t{2:.1f}".format(
"\t".join(qs), this_identity, this_coverage)
else:
for query, size in sz.iter_sizes():
this_identity, this_coverage = covidstore.get(query, (0, 0))
print "{0}\t{1:.1f}\t{2:.1f}".format(query, this_identity,
this_coverage)
mapped_count = len(queries)
valid_count = len(valid)
cutoff_message = "(id={0.pctid}% cov={0.pctcov}%)".format(opts)
m = "Identity: {0} mismatches, {1} gaps, {2} alignlen\n".\
format(mismatches, gaps, alignlen)
total = len(sizes.keys())
m += "Total mapped: {0} ({1:.1f}% of {2})\n".\
format(mapped_count, mapped_count * 100. / total, total)
m += "Total valid {0}: {1} ({2:.1f}% of {3})\n".\
format(cutoff_message, valid_count, valid_count * 100. / total, total)
m += "Average id = {0:.2f}%\n".\
format(100 - (mismatches + gaps) * 100. / alignlen)
queries_combined = sz.totalsize
m += "Coverage: {0} covered, {1} total\n".\
format(covered, queries_combined)
m += "Average coverage = {0:.2f}%".\
format(covered * 100. / queries_combined)
logfile = blastfile + ".covfilter.log"
fw = open(logfile, "w")
for f in (sys.stderr, fw):
print >> f, m
fw.close()
if opts.ids:
filename = opts.ids
fw = must_open(filename, "w")
for id in valid:
print >> fw, id
logging.debug("Queries beyond cutoffs {0} written to `{1}`.".\
format(cutoff_message, filename))
outfile = opts.outfile
if not outfile:
return
fw = must_open(outfile, "w")
blast = Blast(blastfile)
for b in blast:
query = (b.query, b.subject) if qspair else b.query
if query in valid:
print >> fw, b
def novo2(args):
"""
%prog novo2 trimmed projectname
Reference-free tGBS pipeline v2.
"""
p = OptionParser(novo2.__doc__)
p.set_fastq_names()
p.set_align(pctid=94)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
trimmed, pf = args
pctid = opts.pctid
reads, samples = scan_read_files(trimmed, opts.names)
# Set up directory structure
clustdir = "uclust"
acdir ="allele_counts"
for d in (clustdir, acdir):
mkdir(d)
mm = MakeManager()
clustfiles = []
# Step 0 - clustering within sample
for s in samples:
flist = [x for x in reads if op.basename(x).split(".")[0] == s]
outfile = s + ".P{0}.clustS".format(pctid)
outfile = op.join(clustdir, outfile)
cmd = "python -m jcvi.apps.uclust cluster --cpus=8"
cmd += " {0} {1}".format(s, " ".join(flist))
cmd += " --outdir={0}".format(clustdir)
cmd += " --pctid={0}".format(pctid)
mm.add(flist, outfile, cmd)
clustfiles.append(outfile)
# Step 1 - make consensus within sample
allcons = []
for s, clustfile in zip(samples, clustfiles):
outfile = s + ".P{0}.consensus".format(pctid)
outfile = op.join(clustdir, outfile)
cmd = "python -m jcvi.apps.uclust consensus"
cmd += " {0}".format(clustfile)
mm.add(clustfile, outfile, cmd)
allcons.append(outfile)
# Step 2 - clustering across samples
clustSfile = pf + ".P{0}.clustS".format(pctid)
cmd = "python -m jcvi.apps.uclust mcluster {0}".format(" ".join(allcons))
cmd += " --prefix={0}".format(pf)
mm.add(allcons, clustSfile, cmd)
# Step 3 - make consensus across samples
locifile = pf + ".P{0}.loci".format(pctid)
cmd = "python -m jcvi.apps.uclust mconsensus {0}".format(" ".join(allcons))
cmd += " --prefix={0}".format(pf)
mm.add(allcons + [clustSfile], locifile, cmd)
mm.write()
def assemble(args):
"""
%prog assemble pasa_db_name genome.fasta transcripts-dn.fasta [transcript-gg.fasta]
Run the PASA alignment assembly pipeline
If two transcript fasta files (Trinity denovo and genome guided) are provided,
the PASA Comprehensive Transcriptome protocol is followed
<http://pasa.sourceforge.net/#A_ComprehensiveTranscriptome>
Using the `--prepare` option creates a shell script with the run commands without
executing the pipeline
"""
p = OptionParser(assemble.__doc__)
p.set_home("pasa")
p.set_align(pctid=95, pctcov=90, intron=2000, bpsplice=3, compreh_pctcov=30)
p.add_option("--aligners", default="blat,gmap",
help="Specify splice aligners to use for mapping [default: %default]")
p.add_option("--clean", default=False, action="store_true",
help="Clean transcripts using tgi seqclean [default: %default]")
p.set_cpus()
p.set_grid()
p.set_grid_opts()
p.add_option("--prepare", default=False, action="store_true",
help="Prepare PASA run script with commands [default: %default]")
opts, args = p.parse_args(args)
if len(args) not in (3, 4):
sys.exit(not p.print_help())
pasa_db, genome, dnfasta, = args[:3]
ggfasta = args[3] if len(args) == 4 else None
PASA_HOME = opts.pasa_home
if not op.isdir(PASA_HOME):
logging.error("PASA_HOME={0} directory does not exist".format(PASA_HOME))
sys.exit()
aligners = opts.aligners.split(",")
for aligner in aligners:
if aligner not in ALLOWED_ALIGNERS:
logging.error("Error: Unknown aligner `{0}`".format(aligner))
logging.error("Can be any of {0}, ".format("|".join(ALLOWED_ALIGNERS)) + \
"combine multiple aligners in list separated by comma")
sys.exit()
clean = opts.clean
seqclean = which("seqclean")
if clean and not seqclean:
logging.error("Cannot find tgi seqclean in PATH")
sys.exit()
accn_extract = which(op.join(PASA_HOME, "misc_utilities", "accession_extractor.pl"))
launch_pasa = which(op.join(PASA_HOME, "scripts", "Launch_PASA_pipeline.pl"))
build_compreh_trans = which(op.join(PASA_HOME, "scripts", "build_comprehensive_transcriptome.dbi"))
cpus = opts.cpus
grid = opts.grid
prepare, runfile = opts.prepare, "run.sh"
pctcov, pctid = opts.pctcov, opts.pctid
compreh_pctcov, bpsplice = opts.compreh_pctcov, opts.bpsplice
mkdir(pasa_db)
os.chdir(pasa_db)
if prepare:
write_file(runfile, "") # initialize run script
if ggfasta:
transcripts = FileMerger([dnfasta, ggfasta], tfasta).merge()
accn_extract_cmd = "cat {0} | {1} > {2}".format(dnfasta, accn_extract, tdn)
write_file(runfile, accn_extract_cmd, append=True) \
if prepare else sh(accn_extract_cmd)
else:
transcripts = dnfasta
if opts.grid and not opts.threaded:
opts.threaded = opts.cpus
prjobid = None
if clean:
cleancmd = "{0} {1} -c {2} -l 60".format(seqclean, transcripts, cpus)
if prepare:
write_file(runfile, cleancmd, append=True)
else:
prjobid = sh(cleancmd, grid=grid, grid_opts=opts)
aafw = must_open(aaconf, "w")
print >> aafw, alignAssembly_conf.format("{0}_pasa".format(pasa_db), pctcov, pctid, bpsplice)
aafw.close()
aacmd = "{0} -c {1} -C -R -g {2}".format(launch_pasa, aaconf, genome)
aacmd += " -t {0}.clean -T -u {0} ".format(transcripts) if clean else \
" -t {0} ".format(transcripts)
if ggfasta:
aacmd += " --TDN {0} ".format(tdn)
aacmd += " --ALIGNERS {0} -I {1}".format(",".join(aligners), opts.intron)
if prepare:
write_file(runfile, aacmd, append=True)
else:
opts.hold_jid = prjobid
prjobid = sh(aacmd, grid=grid, grid_opts=opts)
if ggfasta:
comprehcmd = "{0} -c {1} -t {2}".format(build_compreh_trans, aaconf, transcripts)
comprehcmd += "--min_per_ID {0} --min_per_aligned {1}".format(pctid, pctcov)
if prepare:
write_file(runfile, comprehcmd, append=True)
else:
opts.hold_jid = prjobid
prjobid = sh(comprehcmd, grid=grid, grid_opts=opts)
def covfilter(args):
"""
%prog covfilter blastfile fastafile
Fastafile is used to get the sizes of the queries. Two filters can be
applied, the id% and cov%.
"""
from jcvi.algorithms.supermap import supermap
from jcvi.utils.range import range_union
allowed_iterby = ("query", "query_sbjct")
p = OptionParser(covfilter.__doc__)
p.set_align(pctid=95, pctcov=50)
p.add_option("--scov", default=False, action="store_true",
help="Subject coverage instead of query [default: %default]")
p.add_option("--supermap", action="store_true",
help="Use supermap instead of union")
p.add_option("--ids", dest="ids", default=None,
help="Print out the ids that satisfy [default: %default]")
p.add_option("--list", dest="list", default=False, action="store_true",
help="List the id% and cov% per gene [default: %default]")
p.add_option("--iterby", dest="iterby", default="query", choices=allowed_iterby,
help="Choose how to iterate through BLAST [default: %default]")
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
blastfile, fastafile = args
pctid = opts.pctid
pctcov = opts.pctcov
union = not opts.supermap
scov = opts.scov
sz = Sizes(fastafile)
sizes = sz.mapping
iterby = opts.iterby
qspair = iterby == "query_sbjct"
if not union:
querysupermap = blastfile + ".query.supermap"
if not op.exists(querysupermap):
supermap(blastfile, filter="query")
blastfile = querysupermap
assert op.exists(blastfile)
covered = 0
mismatches = 0
gaps = 0
alignlen = 0
queries = set()
valid = set()
blast = BlastSlow(blastfile)
iterator = blast.iter_hits_pair if qspair else blast.iter_hits
covidstore = {}
for query, blines in iterator():
blines = list(blines)
queries.add(query)
# per gene report
this_covered = 0
this_alignlen = 0
this_mismatches = 0
this_gaps = 0
this_identity = 0
ranges = []
for b in blines:
if scov:
s, start, stop = b.subject, b.sstart, b.sstop
else:
s, start, stop = b.query, b.qstart, b.qstop
cov_id = s
if b.pctid < pctid:
continue
if start > stop:
start, stop = stop, start
this_covered += stop - start + 1
this_alignlen += b.hitlen
this_mismatches += b.nmismatch
this_gaps += b.ngaps
ranges.append(("1", start, stop))
if ranges:
this_identity = 100. - (this_mismatches + this_gaps) * 100. / this_alignlen
if union:
this_covered = range_union(ranges)
this_coverage = this_covered * 100. / sizes[cov_id]
covidstore[query] = (this_identity, this_coverage)
if this_identity >= pctid and this_coverage >= pctcov:
valid.add(query)
covered += this_covered
mismatches += this_mismatches
gaps += this_gaps
alignlen += this_alignlen
if opts.list:
if qspair:
allpairs = defaultdict(list)
for (q, s) in covidstore:
allpairs[q].append((q, s))
allpairs[s].append((q, s))
for id, size in sz.iter_sizes():
if id not in allpairs:
print "\t".join((id, "na", "0", "0"))
else:
for qs in allpairs[id]:
this_identity, this_coverage = covidstore[qs]
print "{0}\t{1:.1f}\t{2:.1f}".format("\t".join(qs), this_identity, this_coverage)
else:
for query, size in sz.iter_sizes():
this_identity, this_coverage = covidstore.get(query, (0, 0))
print "{0}\t{1:.1f}\t{2:.1f}".format(query, this_identity, this_coverage)
mapped_count = len(queries)
valid_count = len(valid)
cutoff_message = "(id={0.pctid}% cov={0.pctcov}%)".format(opts)
m = "Identity: {0} mismatches, {1} gaps, {2} alignlen\n".\
format(mismatches, gaps, alignlen)
total = len(sizes.keys())
m += "Total mapped: {0} ({1:.1f}% of {2})\n".\
format(mapped_count, mapped_count * 100. / total, total)
m += "Total valid {0}: {1} ({2:.1f}% of {3})\n".\
format(cutoff_message, valid_count, valid_count * 100. / total, total)
m += "Average id = {0:.2f}%\n".\
format(100 - (mismatches + gaps) * 100. / alignlen)
queries_combined = sz.totalsize
m += "Coverage: {0} covered, {1} total\n".\
format(covered, queries_combined)
m += "Average coverage = {0:.2f}%".\
format(covered * 100. / queries_combined)
logfile = blastfile + ".covfilter.log"
fw = open(logfile, "w")
for f in (sys.stderr, fw):
print >> f, m
fw.close()
if opts.ids:
filename = opts.ids
fw = must_open(filename, "w")
for id in valid:
print >> fw, id
logging.debug("Queries beyond cutoffs {0} written to `{1}`.".\
format(cutoff_message, filename))
outfile = opts.outfile
if not outfile:
return
fw = must_open(outfile, "w")
blast = Blast(blastfile)
for b in blast:
query = (b.query, b.subject) if qspair else b.query
if query in valid:
print >> fw, b
def overlap(args):
"""
%prog overlap <a|a.fasta> <b|b.fasta>
Check overlaps between two fasta records. The arguments can be genBank IDs
instead of FASTA files. In case of IDs, the sequences will be downloaded
first.
"""
from jcvi.formats.blast import chain_HSPs
p = OptionParser(overlap.__doc__)
p.add_option("--dir",
default=os.getcwd(),
help="Download sequences to dir [default: %default]")
p.add_option("--suffix",
default="fasta",
help="Suffix of the sequence file in dir [default: %default]")
p.add_option("--qreverse",
default=False,
action="store_true",
help="Reverse seq a [default: %default]")
p.add_option("--nochain",
default=False,
action="store_true",
help="Do not chain adjacent HSPs [default: chain HSPs]")
p.set_align(pctid=GoodPct, hitlen=GoodOverlap, evalue=.01)
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
afasta, bfasta = args
dir = opts.dir
chain = not opts.nochain
suffix = opts.suffix
evalue = opts.evalue
pctid = opts.pctid
hitlen = opts.hitlen
cutoff = Cutoff(pctid, hitlen)
# Check first whether it is file or accession name
if not op.exists(afasta):
af = op.join(dir, ".".join((afasta, suffix)))
if not op.exists(af): # Check to avoid redownload
entrez([afasta, "--skipcheck", "--outdir=" + dir])
afasta = af
if not op.exists(bfasta):
bf = op.join(dir, ".".join((bfasta, suffix)))
if not op.exists(bf):
entrez([bfasta, "--skipcheck", "--outdir=" + dir])
bfasta = bf
assert op.exists(afasta) and op.exists(bfasta)
cmd = "blastn -dust no"
cmd += " -query {0} -subject {1}".format(afasta, bfasta)
cmd += " -evalue {0} -outfmt 6 -perc_identity {1}".format(evalue, pctid)
fp = popen(cmd)
hsps = fp.readlines()
hsps = [BlastLine(x) for x in hsps]
hsps = [x for x in hsps if x.hitlen >= hitlen]
if chain:
logging.debug("Chain HSPs in the Blast output.")
dist = 2 * hitlen # Distance to chain the HSPs
hsps = chain_HSPs(hsps, xdist=dist, ydist=dist)
if len(hsps) == 0:
print >> sys.stderr, "No match found."
return None
besthsp = hsps[0]
aid, asize = Fasta(afasta).itersizes().next()
bid, bsize = Fasta(bfasta).itersizes().next()
o = Overlap(besthsp, asize, bsize, cutoff, qreverse=opts.qreverse)
o.print_graphic()
if opts.outfile:
fw = must_open(opts.outfile, "w")
print >> fw, str(o)
fw.close()
return o
def filter(args):
"""
%prog filter test.blast
Produce a new blast file and filter based on:
- score: >= cutoff
- pctid: >= cutoff
- hitlen: >= cutoff
- evalue: <= cutoff
- ids: valid ids
Use --inverse to obtain the complementary records for the criteria above.
- noself: remove self-self hits
"""
p = OptionParser(filter.__doc__)
p.add_option("--score",
dest="score",
default=0,
type="int",
help="Score cutoff")
p.set_align(pctid=95, hitlen=100, evalue=.01)
p.add_option("--noself",
default=False,
action="store_true",
help="Remove self-self hits")
p.add_option("--ids", help="Path to file with ids to retain")
p.add_option("--inverse",
default=False,
action="store_true",
help="Similar to grep -v, inverse")
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
if opts.ids:
ids = set()
for row in must_open(opts.ids):
if row[0] == "#":
continue
row = row.replace(",", "\t")
ids.update(row.split())
else:
ids = None
blastfile, = args
inverse = opts.inverse
outfile = opts.outfile
fp = must_open(blastfile)
score, pctid, hitlen, evalue, noself = \
opts.score, opts.pctid, opts.hitlen, opts.evalue, opts.noself
newblastfile = blastfile + ".P{0}L{1}".format(int(pctid), hitlen) if \
outfile is None else outfile
if inverse:
newblastfile += ".inverse"
fw = must_open(newblastfile, "w")
for row in fp:
if row[0] == '#':
continue
c = BlastLine(row)
if ids:
if c.query in ids and c.subject in ids:
noids = False
else:
noids = True
else:
noids = None
remove = c.score < score or \
c.pctid < pctid or \
c.hitlen < hitlen or \
c.evalue > evalue or \
noids
if inverse:
remove = not remove
remove = remove or (noself and c.query == c.subject)
if not remove:
print >> fw, row.rstrip()
fw.close()
return newblastfile
def filter(args):
"""
%prog filter test.blast
Produce a new blast file and filter based on:
- score: >= cutoff
- pctid: >= cutoff
- hitlen: >= cutoff
- evalue: <= cutoff
- ids: valid ids
Use --inverse to obtain the complementary records for the criteria above.
- noself: remove self-self hits
"""
p = OptionParser(filter.__doc__)
p.add_option("--score", dest="score", default=0, type="int",
help="Score cutoff")
p.set_align(pctid=95, hitlen=100, evalue=.01)
p.add_option("--noself", default=False, action="store_true",
help="Remove self-self hits")
p.add_option("--ids", help="Path to file with ids to retain")
p.add_option("--inverse", default=False, action="store_true",
help="Similar to grep -v, inverse")
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 1:
sys.exit(not p.print_help())
if opts.ids:
ids = set()
for row in must_open(opts.ids):
if row[0] == "#":
continue
row = row.replace(",", "\t")
ids.update(row.split())
else:
ids = None
blastfile, = args
inverse = opts.inverse
outfile = opts.outfile
fp = must_open(blastfile)
score, pctid, hitlen, evalue, noself = \
opts.score, opts.pctid, opts.hitlen, opts.evalue, opts.noself
newblastfile = blastfile + ".P{0}L{1}".format(int(pctid), hitlen) if \
outfile is None else outfile
if inverse:
newblastfile += ".inverse"
fw = must_open(newblastfile, "w")
for row in fp:
if row[0] == '#':
continue
c = BlastLine(row)
if ids:
if c.query in ids and c.subject in ids:
noids = False
else:
noids = True
else:
noids = None
remove = c.score < score or \
c.pctid < pctid or \
c.hitlen < hitlen or \
c.evalue > evalue or \
noids
if inverse:
remove = not remove
remove = remove or (noself and c.query == c.subject)
if not remove:
print >> fw, row.rstrip()
return newblastfile
def overlap(args):
"""
%prog overlap <a|a.fasta> <b|b.fasta>
Check overlaps between two fasta records. The arguments can be genBank IDs
instead of FASTA files. In case of IDs, the sequences will be downloaded
first.
"""
from jcvi.formats.blast import chain_HSPs
p = OptionParser(overlap.__doc__)
p.add_option("--dir", default=os.getcwd(),
help="Download sequences to dir [default: %default]")
p.add_option("--suffix", default="fasta",
help="Suffix of the sequence file in dir [default: %default]")
p.add_option("--qreverse", default=False, action="store_true",
help="Reverse seq a [default: %default]")
p.add_option("--nochain", default=False, action="store_true",
help="Do not chain adjacent HSPs [default: chain HSPs]")
p.set_align(pctid=GoodPct, hitlen=GoodOverlap, evalue=.01)
p.set_outfile(outfile=None)
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
afasta, bfasta = args
dir = opts.dir
chain = not opts.nochain
suffix = opts.suffix
evalue = opts.evalue
pctid = opts.pctid
hitlen = opts.hitlen
cutoff = Cutoff(pctid, hitlen)
# Check first whether it is file or accession name
if not op.exists(afasta):
af = op.join(dir, ".".join((afasta, suffix)))
if not op.exists(af): # Check to avoid redownload
entrez([afasta, "--skipcheck", "--outdir=" + dir])
afasta = af
if not op.exists(bfasta):
bf = op.join(dir, ".".join((bfasta, suffix)))
if not op.exists(bf):
entrez([bfasta, "--skipcheck", "--outdir=" + dir])
bfasta = bf
assert op.exists(afasta) and op.exists(bfasta)
cmd = "blastn -dust no"
cmd += " -query {0} -subject {1}".format(afasta, bfasta)
cmd += " -evalue {0} -outfmt 6 -perc_identity {1}".format(evalue, pctid)
fp = popen(cmd)
hsps = fp.readlines()
hsps = [BlastLine(x) for x in hsps]
hsps = [x for x in hsps if x.hitlen >= hitlen]
if chain:
logging.debug("Chain HSPs in the Blast output.")
dist = 2 * hitlen # Distance to chain the HSPs
hsps = chain_HSPs(hsps, xdist=dist, ydist=dist)
if len(hsps) == 0:
print >> sys.stderr, "No match found."
return None
besthsp = hsps[0]
aid, asize = Fasta(afasta).itersizes().next()
bid, bsize = Fasta(bfasta).itersizes().next()
o = Overlap(besthsp, asize, bsize, cutoff, qreverse=opts.qreverse)
o.print_graphic()
if opts.outfile:
fw = must_open(opts.outfile, "w")
print >> fw, str(o)
fw.close()
return o
def anneal(args):
"""
%prog anneal agpfile contigs.fasta
Merge adjacent overlapping contigs and make new AGP file.
By default it will also anneal lines like these together (unless --nozipshreds):
scaffold4 1 1608 1 W ca-bacs.5638.frag11.22000-23608 1 1608 -
scaffold4 1609 1771 2 N 163 scaffold yes paired-ends
scaffold4 1772 3771 3 W ca-bacs.5638.frag10.20000-22000 1 2000 -
These are most likely shreds, which we look for based on names.
"""
p = OptionParser(anneal.__doc__)
p.set_align(pctid=GoodPct, hitlen=GoodOverlap)
p.add_option("--hang",
default=GoodOverhang,
type="int",
help="Maximum overhang length [default: %default]")
p.set_outdir(outdir="outdir")
p.set_cpus()
opts, args = p.parse_args(args)
if len(args) != 2:
sys.exit(not p.print_help())
agpfile, contigs = args
outdir = opts.outdir
if not op.exists(outdir):
mkdir(outdir)
cmd = "faSplit byname {0} {1}/".format(contigs, outdir)
sh(cmd)
cutoff = Cutoff(opts.pctid, opts.hitlen, opts.hang)
logging.debug(str(cutoff))
agp = AGP(agpfile)
blastfile = agpfile.replace(".agp", ".blast")
if not op.exists(blastfile):
populate_blastfile(blastfile, agp, outdir, opts)
assert op.exists(blastfile)
logging.debug("File `{0}` found. Start loading.".format(blastfile))
blast = BlastSlow(blastfile).to_dict()
annealedagp = "annealed.agp"
annealedfasta = "annealed.fasta"
newagp = deepcopy(agp)
clrstore = {}
for a, b, qreverse in agp.iter_paired_components():
aid = a.component_id
bid = b.component_id
pair = (aid, bid)
if pair in blast:
bl = blast[pair]
else:
oopts = get_overlap_opts(aid, bid, qreverse, outdir, opts)
o = overlap(oopts)
if not o:
continue
bl = o.blastline
o = Overlap(bl,
a.component_span,
b.component_span,
cutoff,
qreverse=qreverse)
if aid not in clrstore:
clrstore[aid] = CLR.from_agpline(a)
if bid not in clrstore:
clrstore[bid] = CLR.from_agpline(b)
aclr, bclr = clrstore[aid], clrstore[bid]
o.print_graphic()
if o.anneal(aclr, bclr):
newagp.delete_between(aid, bid, verbose=True)
if o.otype == 2: # b ~ a
o = o.swapped
o.print_graphic()
if o.anneal(bclr, aclr):
newagp.switch_between(bid, aid, verbose=True)
newagp.delete_between(bid, aid, verbose=True)
logging.debug("A total of {0} components with modified CLR.".\
format(len(clrstore)))
for cid, c in clrstore.items():
if c.is_valid:
continue
print >> sys.stderr, "Remove {0}".format(c)
newagp.convert_to_gap(cid, verbose=True)
# Update all ranges that has modified clr
for a in newagp:
if a.is_gap:
continue
aid = a.component_id
if aid in clrstore:
c = clrstore[aid]
a.component_beg = c.start
a.component_end = c.end
newagp.print_to_file(annealedagp)
tidyagp = tidy([annealedagp, contigs])
build([tidyagp, contigs, annealedfasta])
return annealedfasta
