def assemble_reads(sampleList):
## get the files
def get_fq_files(sample):
sampleDir = os.path.join(seqDir, "Sample_%s" % sample,
"raw_illumina_reads")
leftFile, rightFile = None, None
for fileName in os.listdir(sampleDir):
if re.search("^%s.*\.fastq$" % sample, fileName) and re.search(
"R1", fileName):
leftFile = os.path.realpath(os.path.join(sampleDir, fileName))
elif re.search("^%s.*.fastq$" % sample, fileName) and re.search(
"R2", fileName):
rightFile = os.path.realpath(os.path.join(sampleDir, fileName))
return leftFile, rightFile
for sample in sampleList:
print("\nprocessing sample: %s" % sample)
left_fq, right_fq = get_fq_files(sample)
## run trimmomatic (assuming FR)
out1 = os.path.join(analysisDir, "%s_left_paired.fq" % sample)
out2 = os.path.join(analysisDir, "%s_left_unpaired.fq" % sample)
out3 = os.path.join(analysisDir, "%s_right_paired.fq" % sample)
out4 = os.path.join(analysisDir, "%s_right_unpaired.fq" % sample)
cmd = "java -jar /usr/share/java/trimmomatic-0.32.jar PE -threads 29 -phred33 " +\
"%s %s "%(left_fq,right_fq) +\
"%s %s "%(out1,out2)+\
"%s %s "%(out3,out4)+\
"ILLUMINACLIP:/usr/src/trinityrnaseq_r20140717/trinity-plugins/Trimmomatic-0.32/adapters/TruSeq3-PE.fa:2:30:10 "+\
"LEADING:5 TRAILING:5 SLIDINGWINDOW:4:15 MINLEN:36"
if not os.path.exists(out1):
run_subprocess(cmd)
## remove
#for fileName in faFileList:
# print("removing %s"%fileName
# os.remove(fileName)
print "complete"
def get_count_matrix(sample, overwrite=False):
print("getting counts for sample %s" % sample)
gtfFilePath = os.path.realpath(os.path.join(seqDir, "Xentr7_2_Stable.gtf"))
samFilePath = os.path.join(starDir, "%s_aligned_sorted.sam" % sample)
countsFilePath = os.path.join(analysisDir,
'counts_%s.txt' % sample.lower())
if not os.path.exists(samFilePath):
raise Exception("cannot find sam file %s" % (samFilePath))
if os.path.exists(countsFilePath) and overwrite:
print("...removing old count file '%s'" % countsFilePath)
os.remove(countsFilePath)
elif os.path.exists(countsFilePath) and not overwrite:
print("...'%s' exists use 'overwrite' to remove" % countsFilePath)
return
## save the count matrix
print('...running htseq-count')
cmd = "/usr/bin/htseq-count %s %s > %s" % (samFilePath, gtfFilePath,
countsFilePath)
run_subprocess(cmd)
def get_count_matrix(sample, clean=False):
print("getting counts for sample %s" % sample)
bamFilePath = os.path.join(seqDir, "Sample_%s" % sample,
"tophat_remapping", "accepted_hits.bam")
sbamFilePath = os.path.join(seqDir, "Sample_%s" % sample,
"tophat_remapping", "accepted_hits_sorted.bam")
samFilePath = os.path.join(seqDir, "Sample_%s" % sample,
"tophat_remapping", "accepted_hits.sam")
gtsFilePath = os.path.join(seqDir, "Sample_%s" % sample,
"cufflinks_output", "transcripts.gtf")
countsFilePath = os.path.join(analysisDir,
'counts_%s.txt' % sample.lower())
warningsFilePath = os.path.join(analysisDir,
'warnings_%s.txt' % sample.lower())
## clean
if clean == True:
for filePath in [sbamFilePath, samFilePath, countsFilePath]:
if os.path.exists(filePath):
os.remove(filePath)
## error check
if not os.path.exists(bamFilePath):
raise Exception("Invalid file path\n...%s" % bamFilePath)
if not os.path.exists(gtsFilePath):
raise Exception("Invalid file path\n...%s" % gtsFilePath)
## sort bam file
if not os.path.exists(sbamFilePath):
print('creating sorted bam file...')
cmd = "/usr/bin/samtools sort -n %s %s" % (bamFilePath,
sbamFilePath[:-4])
run_subprocess(cmd)
## convert to sam file
if not os.path.exists(samFilePath):
print('converting bam to sam file...')
cmd = "/usr/bin/samtools view -h -o %s %s" % (samFilePath,
sbamFilePath)
run_subprocess(cmd)
## save the count matrix
print('running htseq-count')
#cmd = "/usr/bin/htseq-count %s %s > %s"%(samFilePath,gtsFilePath,countsFilePath)
cmd = "/usr/bin/htseq-count -m intersection-nonempty -s yes %s %s > %s 2> %s" % (
samFilePath, gtsFilePath, countsFilePath, warningsFilePath)
run_subprocess(cmd)
## specify the locations
homeDir = os.path.join(os.path.expanduser("~"), "sequencing", "xenopus")
readsDir = os.path.join(homeDir, 'reads')
## more variables
email = "*****@*****.**"
trinityDir = "/usr/src/trinityrnaseq_r20140717/"
if __name__ == "__main__":
for method in ['dn', 'gg']:
featuresDir = os.path.join(homeDir, "%s-trinity" % method, "features")
for source in ['genes', 'isoforms']:
countMatrixPath = os.path.join(featuresDir,
"Trinity_%s.counts.matrix" % source)
## run DESeq
outputPath = os.path.join(
featuresDir, "deseq_%s_%s_de.csv" % (source, 'behavior'))
cmd = "Rscript runDESeq.R %s %s" % (countMatrixPath, outputPath)
print("running...\n%s" % cmd)
run_subprocess(cmd)
## run edgeR
outputPath = os.path.join(featuresDir,
"edger_%s_behavior_de.csv" % source)
cmd = "Rscript runEdgeR.R %s %s" % (countMatrixPath, outputPath)
print("running...\n%s" % cmd)
run_subprocess(cmd)
def assemble_reads(sampleList):
## get the files
def get_paired_files(sample):
leftFile, rightFile = None, None
for fileName in os.listdir(readsDir):
if re.search("unpaired", fileName):
continue
if re.search("^%s.*\.fq$" % sample, fileName) and re.search(
"left", fileName):
leftFile = os.path.realpath(os.path.join(readsDir, fileName))
elif re.search("^%s.*.fq$" % sample, fileName) and re.search(
"right", fileName):
rightFile = os.path.realpath(os.path.join(readsDir, fileName))
return leftFile, rightFile
allLeft = []
allRight = []
for sample in sampleList:
left, right = get_paired_files(sample)
allLeft.append(left)
allRight.append(right)
## check
if len(allLeft) != len(sampleList):
raise Exception("Invalid number of left sequences")
if len(allRight) != len(sampleList):
raise Exception("Invalid number of right sequences")
if None in allLeft or None in allRight:
raise Exception("Were the sequences prepped?")
## first prepare the reference
cmd = "export TRINITY_HOME=%s;\n"%(trinityDir)+\
"$TRINITY_HOME/util/align_and_estimate_abundance.pl --transcripts %s "%(transcriptsFilePath)+\
"--est_method RSEM --aln_method bowtie --trinity_mode --prep_reference --output_dir %s"%(featuresDir)
print('preping reference...')
run_subprocess(cmd)
print('reference prepreation complete.')
for s, sample in enumerate(sampleList):
cmd = "export TRINITY_HOME=%s;\n"%(trinityDir)+\
"$TRINITY_HOME/util/align_and_estimate_abundance.pl --transcripts %s "%(transcriptsFilePath)+\
"--seqType fq --left %s --right %s "%(allLeft[s],allRight[s])+\
"--est_method RSEM --aln_method bowtie --trinity_mode "+\
"--output_dir %s --output_prefix %s"%(featuresDir,sample)
if cluster == True:
submitFile = os.path.join(clusterDir, "%s-%s.sh" % (sample, s))
submitLog = os.path.join(clusterDir, "%s-%s.log" % (sample, s))
f = open(submitFile, 'w')
f.write("#!/bin/bash\n"+\
"#$ -S /bin/bash\n"+\
"#$ -j yes\n"+\
"#S -M %s\n"%email+\
"#$ -o %s\n"%submitLog+\
"export TRINITY_HOME=%s\n"%(trinityDir)+\
cmd)
f.close()
print("submitting %s" % submitFile)
os.system("qsub " + submitFile)
else:
print("running...\n%s" % cmd)
def assemble_reads(sampleList):
## get the files
def get_gz_files(sample, laneDir):
leftFile, rightFile = None, None
for fileName in os.listdir(laneDir):
if re.search("^%s.*\.fastq.gz$" % sample, fileName) and re.search(
"R1", fileName):
leftFile = os.path.realpath(os.path.join(laneDir, fileName))
elif re.search("^%s.*.fastq.gz$" % sample, fileName) and re.search(
"R2", fileName):
rightFile = os.path.realpath(os.path.join(laneDir, fileName))
return leftFile, rightFile
lane1Dir = os.path.join(seqDir, "pieris-lane-1", "RawData")
lane2Dir = os.path.join(seqDir, "pieris-lane-2", "RawData")
for sample in sampleList:
print("\nprocessing sample: %s" % sample)
left_gz1, right_gz1 = get_gz_files(sample, lane1Dir)
left_gz2, right_gz2 = get_gz_files(sample, lane2Dir)
## unzip files into analysis dir
for source in [left_gz1, left_gz2, right_gz1, right_gz2]:
target = os.path.join(analysisDir, os.path.split(source)[-1][:-3])
if not os.path.exists(target):
unzip_file(source, target)
## concat files into analysis dir
faFileList = [
os.path.join(analysisDir,
os.path.split(source)[-1][:-3])
for f in [left_gz1, left_gz2, right_gz1, right_gz2]
]
allLeftFile = os.path.join(analysisDir, "%s_left.fq" % sample)
allRightFile = os.path.join(analysisDir, "%s_right.fq" % sample)
catLeft = "cat %s %s > %s" % (faFileList[0], faFileList[1],
allLeftFile)
catRight = "cat %s %s > %s" % (faFileList[2], faFileList[3],
allRightFile)
print("concatenating lanes...")
if not os.path.exists(allLeftFile):
print catLeft
run_subprocess(catLeft)
if not os.path.exists(allRightFile):
print catRight
run_subprocess(catRight)
## run trimmomatic (assuming FR)
out1 = os.path.join(analysisDir, "%s_left_paired.fq" % sample)
out2 = os.path.join(analysisDir, "%s_left_unpaired.fq" % sample)
out3 = os.path.join(analysisDir, "%s_right_paired.fq" % sample)
out4 = os.path.join(analysisDir, "%s_right_unpaired.fq" % sample)
cmd = "java -jar /usr/share/java/trimmomatic-0.32.jar PE -threads 29 -phred33 " +\
"%s %s "%(allLeftFile,allRightFile) +\
"%s %s "%(out1,out2)+\
"%s %s "%(out3,out4)+\
"ILLUMINACLIP:/usr/src/trinityrnaseq-2.0.4/trinity-plugins/Trimmomatic-0.32/adapters/TruSeq3-PE.fa:2:30:10 "+\
"LEADING:5 TRAILING:5 SLIDINGWINDOW:4:15 MINLEN:36"
if not os.path.exists(out1):
run_subprocess(cmd)
## remove
for fileName in faFileList:
if os.path.exists(fileName):
print("removing %s" % fileName)
os.remove(fileName)
print "complete"
def unzip_file(source, target):
print('unzipping...%s' % source)
cmd = "gunzip -c %s > %s" % (source, target)
print cmd
run_subprocess(cmd)
def run_deseq(countsPath, outFile):
cmd = "Rscript runDESeq.R %s %s" % (countsPath, outFile)
print("running...\n%s" % cmd)
run_subprocess(cmd)
bamFile = os.path.join(readsDir, "%s_aligned.bam" % (sample))
sbamFile = os.path.join(readsDir, "%s_aligned_sorted.bam" % (sample))
ssamFile = os.path.join(readsDir, "%s_aligned_sorted.sam" % (sample))
if not os.path.exists(samFile):
raise Exception("cannot find sam file %s" % (samFile))
if os.path.exists(ssamFile) and not overwrite:
print("skipping sam to bam, align, bam to sam")
else:
cmd = "/usr/bin/samtools view -b -S %s > %s && " % (samFile,
bamFile)
cmd += "/usr/bin/samtools sort -n %s %s && " % (bamFile,
sbamFile[:-4])
cmd += "/usr/bin/samtools view -h %s > %s" % (sbamFile, ssamFile)
print cmd
run_subprocess(cmd)
## concat sam files and sort by coordinates
print("\n...make single sorted bam file..")
outBam = os.path.join(homeDir, "star_all_reads.bam")
outSbam = os.path.join(homeDir, "star_all_reads_sorted.bam")
cmdMerge = "/usr/bin/samtools merge %s" % (outBam)
cmdSort = "/usr/bin/samtools sort %s %s" % (outBam, outSbam[:-4])
for s, sample in enumerate(sampleList):
sbamFile = os.path.join(readsDir, "%s_aligned_sorted.bam" % (sample))
cmdMerge += " %s" % (sbamFile)
cmdMergeSort = cmdMerge + " && %s" % (cmdSort)
if os.path.exists(outSbam) and not overwrite:
print("skipping concat bam files and sort")
