Difference between revisions of "UGP Variant Pipeline 0.0.2"

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= Utah Genome Project =
 
= Utah Genome Project =
== Variant Calling Pipeline  0.0.2 ==
+
== Variant Calling Pipeline  Version 0.0.2 ==
 
== Sept. 2013 ==
 
== Sept. 2013 ==
  
Line 10: Line 10:
  
 
* Reference Genome (GRCh37):
 
* Reference Genome (GRCh37):
human_g1K_v37.fasta
+
**human_g1K_v37.fasta
  
 
* High confidence SNVs
 
* High confidence SNVs
  1000G_omni2.5.b37.vcf
+
**1000G_omni2.5.b37.vcf
  hapmap_3.3.b37.vcf
+
**hapmap_3.3.b37.vcf
  
 
* dbSNP
 
* dbSNP
  dbsnp_137.b37.vcf.gz
+
**dbsnp_137.b37.vcf.gz
  
* High confidence indels
+
* Known indels
  Mills_and_1000G_gold_standard.indels.b37.vcf.gz
+
**Mills_and_1000G_gold_standard.indels.b37.vcf.gz
 +
**1000G_phase1.indels.b37.vcf
  
 
== Sequencing ==
 
== Sequencing ==
Line 41: Line 42:
 
== FastQ File Analyses ==
 
== FastQ File Analyses ==
  
  fastqc 9958X1_130327_700179R_0404_BD1YNUACXX_7_1.txt
+
  fastqc Sample1_L1_R1.txt
  
 
From the fastqc_data.txt file we check the following values:
 
From the fastqc_data.txt file we check the following values:
Line 48: Line 49:
 
* Filtered Sequences      (Should be 0 or at least very low)
 
* Filtered Sequences      (Should be 0 or at least very low)
 
* Sequence length (must be ~ 100 bp)
 
* Sequence length (must be ~ 100 bp)
* %GC    (should be 45 < x < 55)
+
* %GC    (<span style="background:#FFFF00">should be 45 < x < 55</span>)
 
* Total Duplicate Percentage (<span style="background:#FFFF00">This value may not be valuable - an acceptable range has not been determined</span>).
 
* Total Duplicate Percentage (<span style="background:#FFFF00">This value may not be valuable - an acceptable range has not been determined</span>).
  
 
== Alignment ==
 
== Alignment ==
  
 +
Align reads to the genome with bwa.
  
 
Index the reference sequence if this has not already been done
 
Index the reference sequence if this has not already been done
  
  bwa index -a bwtsw reference_genome.fasta
+
  bwa index -a bwtsw human_g1K_v37.fasta
  
The 'bwa aln' program will find the reference coordinates of the input reads (independent of their mate-pair). The following parameters are those used by the 1KG project for aligning Illumina data.  <span style="background:#FFFF00">Will switch to bwa mem soon</span>.
+
The 'bwa aln' program will find the reference coordinates of the input reads (independent of their mate-pair). The following parameters are those used by the 1KG project for aligning Illumina data.
  
  bwa aln -q 15 reference.fasta file.fastq > output.sai
+
  bwa aln -q 15 human_g1K_v37.fasta file.fastq > Sample1_L1_R1.sai # One lane of reads first in pair
 +
bwa aln -q 15 human_g1K_v37.fasta file.fastq > Sample1_L1_R2.sai # One lane of reads second in pair
  
 
The 'bwa sampe'.  For paired-end reads, the maximum insert size is taken to be 3 times the expected insert size.
 
The 'bwa sampe'.  For paired-end reads, the maximum insert size is taken to be 3 times the expected insert size.
  
  bwa sampe -P reference.fasta output1.sai output2.sai file1.fastq file2.fastq > out.sam
+
  bwa sampe -P human_g1K_v37.fasta Sample1_L1_R1.sai Sample1_L1_R1.sai Sample1_L1_R1.fastq Sample1_L1_R2.fastq | samtools view -bt human_g1K_v37.fasta.fai -o Sample1_L1 -
 +
 
 +
<span style="background:#FFFF00">This will switch to bwa mem soon.
 +
 
 +
bwa mem human_g1K_v37.fasta Sample1_L1_R1.fq Sample1_L1_R2.fq | samtools view -bt human_g1K_v37.fasta.fai -o Sample1_L1 -
 +
 
 +
</span>
  
 
Bwa Command Line Options:
 
Bwa Command Line Options:
Line 89: Line 98:
 
The AddOrReplaceReadGroups tool will add the correct readgroup ID to the BAM files
 
The AddOrReplaceReadGroups tool will add the correct readgroup ID to the BAM files
  
  nohup java -d64 -Xmx8g -jar /usr/local/picard-tools-1.88/AddOrReplaceReadGroups.jar \
+
  java -Xmx4g -jar picard-tools/AddOrReplaceReadGroups.jar \
     INPUT=9958X1_7_1.bam                                                           \
+
     INPUT=Sample1_L1.bam                                             \
     OUTPUT=9958X1_RG.bam                                                           \
+
     OUTPUT=Sample1_L1.rg.bam                                         \
     CREATE_INDEX=TRUE                                                               \
+
     CREATE_INDEX=TRUE                                               \
    MAX_RECORDS_IN_RAM=2000000                                                      \
+
     VALIDATION_STRINGENCY=LENIENT                                    \
     VALIDATION_STRINGENCY=SILENT                                                    \
+
     SORT_ORDER=coordinate                                           \
    TMP_DIR=/tmp                                                                    \
+
     RGID=9958X1                                                     \
     SORT_ORDER=coordinate                                                           \
+
     RGLB=9958X1                                                     \
     RGID=9958X1                                                                     \
+
     RGPL=illumina                                                   \
     RGLB=9958X1                                                                     \
+
     RGPU=1                                                           \
     RGPL=illumina                                                                   \
+
    TMP_DIR=/big/drive                                              \
     RGPU=1                                                                         \
+
     2> 9958X1_AddOrReplaceReadGroups.error
     2> 9958X1_AddOrReplaceReadGroups.error &
 
  
 
== BAM File Analyses ==
 
== BAM File Analyses ==
Line 109: Line 117:
 
=== Merge lane level BAMs to individual ===  
 
=== Merge lane level BAMs to individual ===  
  
  java -jar -Xmx4g /tools/picard-tools-1.90/MergeSamFiles.jar \                                                                                            
+
  java -Xmx4g -jar picard-tools/MergeSamFiles.jar \
     INPUT=alignment.bam         \                                                                                                                        
+
     INPUT=Sample1_L1.rg.bam                     \
     INPUT=alignment.bam         \                                                                                                                        
+
     INPUT=Sample1_L2.rg.bam                     \                                                                                                
     OUTPUT=merged.bam           \                                                                                                                        
+
     OUTPUT=Sample1.bam                         \
     CREATE_INDEX=TRUE           \                                                                                                                        
+
     CREATE_INDEX=TRUE                           \
     ASSUME_SORTED=true           \                                                                                                                        
+
     ASSUME_SORTED=true                         \
     USE_THREADING=true           \                                                                                                                        
+
     USE_THREADING=true                         \
     TMP_DIR=/tmp                \                                                                                                                        
+
     VALIDATION_STRINGENCY=SILENT                \
     MAX_RECORDS_IN_RAM=30000000  \                                                                                                                        
+
     TMP_DIR=/big/drive                          \
     SORT_ORDER=coordinate        \                                                                                                                       
+
     2> MergeSameFiles.error
    VALIDATION_STRINGENCY=SILENT
 
  
=== GATK Local Realignment of Indels ===
+
=== Mark Duplicates ===
  
java -Xmx10g -jar /usr/local/GenomeAnalysisTK-2.4-7-g5e89f01//GenomeAnalysisTK.jar                        \
+
Remove PCR/Optical duplicate reads
    -I all_bams.list                              \
 
    -T RealignerTargetCreator                      \
 
    -R fasta/hs_ref_GRCh37.p10_ALL_chr_hs37d5.fa   \
 
    -o realign.intervals                              \
 
    -known known_indels/ALL.wgs.indels_mills_devine_hg19_leftAligned_collapsed_double_hit.indels.sites.vcf \
 
    -known known_indels/ALL.wgs.low_coverage_vqsr.20101123.indels.sites.vcf                                \
 
    -nt 24                                                                                                \
 
    >  RealignerTargetCreator                                                                              \
 
    2> RealignerTargetCreator.error &
 
  
  java -Xmx10g -jar /usr/local/GenomeAnalysisTK-2.4-7-g5e89f01/GenomeAnalysisTK.jar                         \
+
  java -Xmx4g -jar MarkDuplicates.jar   \
    -T IndelRealigner                                                                                      \
+
     INPUT=Sample1.bam                   \
    -R fasta/hs_ref_GRCh37.p10_ALL_chr_hs37d5.fa                                                          \
+
     OUTPUT=Sample1.dedup.bam           \
     -I 9958X1_RG.bam                                                                                       \
+
     METRICS_FILE=lane1_dup_metrics.txt  \
     -I 9958X2_RG.bam                                                                                       \
+
     ASSUME_SORTED=true                  \
     -I 9958X3_RG.bam                                                                                      \
+
     USE_THREADING=true                  \
     -I 9958X4_RG.bam                                                                                      \
+
     VALIDATION_STRINGENCY=SILENT        \
     -targetIntervals realign.intervals                                                                    \
+
     TMP_DIR=/big/drive                  \
     -o 9958X_Realigned.bam                                                                                \
+
     2> MarkDuplicates.error
     -known known_indels/ALL.wgs.indels_mills_devine_hg19_leftAligned_collapsed_double_hit.indels.sites.vcf \
 
    -known known_indels/ALL.wgs.low_coverage_vqsr.20101123.indels.sites.vcf                                \
 
    >  IndelRealigner.out                                                                                  \
 
     2> IndelRealigner.error
 
  
Or this ??:
+
<span style="background:#FFFF00">Develop range for duplicate levels here</span>
java -Djava.io.tmpdir=/local -Xmx8g -jar GenomeAnalysisTK.jar \
 
    -l INFO -T IndelRealigner \
 
    -U ALLOW_UNINDEXED_BAM    \
 
    -I /output/filename.b37_1kg.dedup.bam \
 
    -targetIntervals /resources//hg19/intervals/realign_intervals_hg19_b37_1kg.intervals \
 
    -R /resources//hg19/indices/b37_1kg.fa \
 
    -D /resources//hg19/dbsnp/dbsnp_129_b37_b37_1kg.rod \
 
    -[B:indels,VCF B:indels,VCF] /resources//hg19/indels/1kg.pilot_release.merged.indels.sites./hg19.b37_1kg.vcf \
 
    -o /output/filename.b37_1kg.realigned.bam
 
    -knownsOnly
 
    -LOD 0.4
 
    -compress 0
 
  
Known indels are from the following files:
+
=== Local Realignment of Indels ===
  
*ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/technical/reference/phase2_mapping_resources/ALL.wgs.indels_mills_devine_hg19_leftAligned_collapsed_double_hit.indels.sites.vcf.gz
+
java -Xmx4g -jar GenomeAnalysisTK.jar                  \
*ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/technical/reference/phase2_mapping_resources/ALL.wgs.low_coverage_vqsr.20101123.indels.sites.vcf.gz
+
    -I All_BAMs.list                                    \
 +
    -o Realign_Intervals.txt                            \
 +
    -T RealignerTargetCreator                          \
 +
    -R human_g1K_v37.fasta                              \
 +
    -known Mills_and_1000G_gold_standard.indels.b37.vcf \
 +
    -known 1000G_phase1.indels.b37.vcf                 \
 +
    -nt 24                                              \
 +
    2> RealignerTargetCreator.error
  
=== Fix Mate Information ===
+
java -Xmx4g -jar GenomeAnalysisTK.jar                  \
 +
    -T IndelRealigner                                  \
 +
    -I Sample1.dedup.bam                                \
 +
    -o Sample1.realign.bam                              \
 +
    -R human_g1K_v37.fasta                              \
 +
    -targetIntervals Realign_Intervals.txt              \
 +
    -known Mills_and_1000G_gold_standard.indels.b37.vcf \
 +
    2> IndelRealigner.error
  
java -jar -Xmx6g /tools/picard-tools-1.32/FixMateInformation.jar \
+
=== Base Quality Score Recalibration ===
    INPUT=/output/filename.b37_1kg.realigned.bam \
 
    OUTPUT=/output/filename.b37_1kg.matefixed.bam \
 
    SORT_ORDER=coordinate                      \
 
    VALIDATION_STRINGENCY=SILENT                \
 
    TMP_DIR=/local
 
  
=== GATK Quality Score Recalibration ===
+
  java -Xmx4g -jar GenomeAnalysisTK.jar \
 
+
  -T PrintReads                      \
*CountCovariates and TableRecalibration are no longer options in GATK (http://gatkforums.broadinstitute.org/discussion/1248/countcovariates).
+
  -I Sample1.realign.bam             \
*Use BaseRecalibrator for both of the below step now (http://www.broadinstitute.org/gatk/gatkdocs/org_broadinstitute_sting_gatk_walkers_bqsr_BaseRecalibrator.html)
+
   -o Sample1.recal.bam               \
+
  -R human_g1K_v37.fasta              \
  java [jvm_args] -jar GenomeAnalysisTK.jar                                \
+
  -BQSR recalibration_report.grp      \
      -T CountCovariates                                                  \
 
      -R $reference_fasta                                                  \
 
      -I $realigned_bam_file                                                \
 
      -recalFile recal_data.csv                                            \
 
      -knownSites $known_sites_file(s)                                      \
 
      -l INFO                                                              \
 
      -L '1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;21;22;X;Y;MT' \
 
      -cov ReadGroupCovariate                                              \
 
      -cov QualityScoreCovariate                                          \
 
      -cov CycleCovariate                                                  \
 
      -cov DinucCovariate                                                  \
 
 
 
java [jvm_args] -jar GenomeAnalysisTK.jar \  
 
      -T TableRecalibration                \
 
      -R $reference_fasta                  \
 
      -recalFile recal_data.csv            \
 
      -I $realigned_bam_file                \
 
      -o $recalibrated_bam_file            \
 
      -l INFO                              \
 
      -compress 0                          \
 
      -disable_bam_indexing                \
 
 
 
 
 
Known sites for recalibration are from dbSNP135:
 
 
 
* ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/technical/reference/phase2_mapping_resources/ALL.wgs.dbsnp.build135.snps.sites.vcf.gz
 
 
 
Sort and index recalibrated alignment (~5h)
 
 
 
java -jar -Xmx3g /tools/picard-tools-1.32/SortSam.jar \
 
    INPUT=/output/filename.b37_1kg.recal.bam           \
 
    OUTPUT=/output/filename.b37_1kg.recal.sorted.bam   \
 
    SORT_ORDER=coordinate                              \
 
    VALIDATION_STRINGENCY=LENIENT                      \
 
    TMP_DIR=/local
 
 
 
java -jar -Xmx3g /tools/picard-tools-1.32/BuildBamIndex.jar \
 
    INPUT=/output/filename.b37_1kg.recal.sorted.bam           \
 
    OUTPUT=/output/filename.b37_1kg.recal.sorted.bam.bai      \
 
    VALIDATION_STRINGENCY=LENIENT \ TMP_DIR=/local
 
 
 
Calculate covariates after realignment and recalibration
 
 
 
java -jar -Xmx2g GenomeAnalysisTK.jar                      \
 
    -l INFO                                                \
 
    -T CountCovariates                                      \
 
    -U ALLOW_UNINDEXED_BAM                                  \
 
    -R /resources//hg19/indices/b37_1kg.fa                  \
 
    --DBSNP /resources//hg19/dbsnp/dbsnp_129_b37_b37_1kg.rod \
 
    -I /output/filename.b37_1kg.recal.sorted.bam            \
 
    -cov ReadGroupcovariate                                \
 
    -cov QualityScoreCovariate                              \
 
    -cov CycleCovariate                                    \
 
    -cov DinucCovariate                                    \
 
    -recalFile /output/filename.b37_1kg.recal.covariate_table.csv
 
  
Analyze covariates before and after
 
 
java -jar -Xmx4g AnalyzeCovariates.jar                            \
 
    -l INFO                                                        \
 
    -resources /resources//hg19/indices/b37_1kg.fa                  \
 
    --recal_file /output/filename.b37_1kg.matefixed.covariate_table.csv \
 
    -outputDir /output/filename.b37_1kg.recal.stats_before/          \
 
    -Rscript ${rscript}
 
    -ignoreQ 5
 
 
java -jar -Xmx4g AnalyzeCovariates.jar                          \
 
    -l INFO                                                      \
 
    -resources /resources//hg19/indices/b37_1kg.fa              \
 
    --recal_file /output/filename.b37_1kg.recal.covariate_table.csv \
 
    -outputDir /output/filename.b37_1kg.recal.stats_after/        \
 
    -Rscript ${rscript}                                          \
 
    -ignoreQ 5
 
 
=== Generate the SAM MD Tag ===
 
 
The MD tag in SAM files provides a string representation of mismatching positions.  The CIGAR string used in SAM files does not provide full detail of mismatch positions.  The samtools calmd command is used to generate MD tags as well as which fix the NM tags (Edit distance to the reference) and introduce the BQ tags (Base Alignment Quality) which can be used during variant calling.
 
 
samtools calmd -Erb recalibrated_file.bam $reference.fasta > $bq_file.bam
 
 
=== Strip Extraneous BAM Tags ===
 
 
Run-level BAMs have extraneous tags (OQ, XM, XG, XO) stripped from them, to reduce total file size by around 30%.
 
 
GATK ReduceReads ???
 
 
=== Merge BAMS ===
 
 
Merge all BAMS for a given individual
 
 
java $jvm_args -jar MergeSamFiles.jar INPUT=$tag_stripped_bam_file(s) OUTPUT=$library_level_bam VALIDATION_STRINGENCY=SILENT
 
 
=== Mark PCR Duplicates ===
 
 
[http://picard.sourceforge.net/ Picard] MarkDuplicates is used to mark PCR Duplicates
 
 
java $jvm_args -jar MarkDuplicates.jar INPUT=$library_level_bam OUTPUT=$markdup_bam_file ASSUME_SORTED=TRUE METRICS_FILE=/dev/null VALIDATION_STRINGENCY=SILENT
 
 
java -Xmx4g -jar /tools/picard-tools-1.32/MarkDuplicates.jar \ INPUT=/output/filename.b37_1kg.sorted.bam \ OUTPUT=/output/filename.b37_1kg.dedup.bam \ METRICS_FILE=/output/filename.b37_1kg.dedup.metrics \ REMOVE_DUPLICATES=false ASSUME_SORTED=true VALIDATION_STRINGENCY=LENIENT \ TMP_DIR=/local
 
 
=== Merge All BAMS for the Project ===
 
 
This happens above... Picard MergeSamFiles is used to Merge all the SAM files for a given project.
 
 
java $jvm_args -jar MergeSamFiles.jar INPUT=$markdup_bam_file(s) OUTPUT=$platform_level_bam VALIDATION_STRINGENCY=SILENT
 
  
 +
<span style="background:#FFFF00">
 
=== BAM Quality Control ===
 
=== BAM Quality Control ===
  
* Picard Tools
+
<span style="background:#FFFF00">
** BamIndexStats
 
** CalculateHsMetrics ??
 
** CleanSam
 
** CollectAlignmentSummaryMetrics
 
** CollectGcBiasMetrics
 
** CollectInsertSizeMetrics
 
** CollectMultipleMetrics
 
** CollectTargetedPcrMetrics
 
** EstimateLibraryComplexity
 
** FixMateInformation
 
** MarkDuplicates
 
** MeanQualityByCycle
 
** QualityScoreDistribution
 
** ValidateSamFile
 
* GATK QC
 
*[http://genome.sph.umich.edu/wiki/Software]
 
*[http://wangzhengyuan.blogspot.com/2012/12/a-tool-for-bam-file-qc-qualimap.html]
 
 
 
 
CollectAlignmentSummaryMetrics
 
CollectAlignmentSummaryMetrics
  java -jar -Xmx4g /tools/picard-tools-1.32/CollectAlignmentSummaryMetrics.jar \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/CollectAlignmentSummaryMetrics.jar \
 
     I=/output/filename.b37_1kg.sorted.bam                                      \
 
     I=/output/filename.b37_1kg.sorted.bam                                      \
 
     O=/output/filename.b37_1kg.AlignmentSummaryMetrics                        \
 
     O=/output/filename.b37_1kg.AlignmentSummaryMetrics                        \
     R=/resources//hg19/indices/b37_1kg.fa                                    \
+
     R=human_g1K_v37.fasta                                                    \
 
     VALIDATION_STRINGENCY=LENIENT                                            \
 
     VALIDATION_STRINGENCY=LENIENT                                            \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
  
 +
<span style="background:#FFFF00">
 
CollectGcBiasMetrics
 
CollectGcBiasMetrics
  java -jar /tools/picard-tools-1.32/CollectGcBiasMetrics.jar \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/CollectGcBiasMetrics.jar \
     R=/resources//hg19/indices/b37_1kg.fa                    \
+
     R=human_g1K_v37.fasta                                          \
     I=/output/filename.b37_1kg.sorted.bam                     \
+
     I=/output/filename.b37_1kg.sorted.bam                           \
     O=/output/filename.b37_1kg.GcBiasMetrics                 \
+
     O=/output/filename.b37_1kg.GcBiasMetrics                         \
     CHART=/output/filename.b37_1kg.GcBiasMetrics.pdf         \
+
     CHART=/output/filename.b37_1kg.GcBiasMetrics.pdf                 \
     VALIDATION_STRINGENCY=LENIENT                           \
+
     VALIDATION_STRINGENCY=LENIENT                                   \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
  
 +
<span style="background:#FFFF00">
 
CollectInsertSizeMetrics
 
CollectInsertSizeMetrics
  java -jar /tools/picard-tools-1.32/CollectInsertSizeMetrics.jar \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/CollectInsertSizeMetrics.jar \
     I=/output/filename.b37_1kg.sorted.bam                         \
+
     I=/output/filename.b37_1kg.sorted.bam                               \
     O=/output/filename.b37_1kg.CollectInsertSizeMetrics           \
+
     O=/output/filename.b37_1kg.CollectInsertSizeMetrics                 \
     H=/output/filename.b37_1kg.CollectInsertSizeMetrics.pdf       \
+
     H=/output/filename.b37_1kg.CollectInsertSizeMetrics.pdf             \
     VALIDATION_STRINGENCY=LENIENT                               \
+
     VALIDATION_STRINGENCY=LENIENT                                       \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
  
 +
<span style="background:#FFFF00">
 
MeanQualityByCycle
 
MeanQualityByCycle
  java -jar /tools/picard-tools-1.32/MeanQualityByCycle.jar \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/MeanQualityByCycle.jar \
     I=/output/filename.b37_1kg.sorted.bam                   \
+
     I=/output/filename.b37_1kg.sorted.bam                         \
     O=/output/filename.b37_1kg.MeanQualityByCycle           \
+
     O=/output/filename.b37_1kg.MeanQualityByCycle                 \
     CHART=/output/filename.b37_1kg.MeanQualityByCycle.pdf   \
+
     CHART=/output/filename.b37_1kg.MeanQualityByCycle.pdf         \
     VALIDATION_STRINGENCY=LENIENT                         \
+
     VALIDATION_STRINGENCY=LENIENT                                 \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
  
 +
<span style="background:#FFFF00">
 
QualityScoreDistribution
 
QualityScoreDistribution
  java -jar /tools/picard-tools-1.32/QualityScoreDistribution.jar       \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/QualityScoreDistribution.jar \
 
     I=/output/filename.b37_1kg.sorted.bam                                \
 
     I=/output/filename.b37_1kg.sorted.bam                                \
 
     O=/output/filename.b37_1kg.[wiki:QualityScoreDistribution]            \
 
     O=/output/filename.b37_1kg.[wiki:QualityScoreDistribution]            \
 
     CHART=/output/filename.b37_1kg.[wiki:QualityScoreDistribution].pdf    \
 
     CHART=/output/filename.b37_1kg.[wiki:QualityScoreDistribution].pdf    \
 
     VALIDATION_STRINGENCY=LENIENT                                        \
 
     VALIDATION_STRINGENCY=LENIENT                                        \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
  
 +
<span style="background:#FFFF00">
 
BamIndexStats
 
BamIndexStats
  java -jar /tools/picard-tools-1.32/BamIndexStats.jar \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/BamIndexStats.jar \
     INPUT=/output/filename.b37_1kg.sorted.bam         \
+
     INPUT=/output/filename.b37_1kg.sorted.bam                 \
     VALIDATION_STRINGENCY=LENIENT                     \
+
     VALIDATION_STRINGENCY=LENIENT                           \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
  
 +
<span style="background:#FFFF00">
 
CalculateHsMetricsWholeGenome
 
CalculateHsMetricsWholeGenome
  java -jar -Xmx3g /tools/picard-tools-1.32/CalculateHsMetricsWholeGenome.jar \
+
  java -Xmx4g -jar /tools/picard-tools-1.32/CalculateHsMetricsWholeGenome.jar \
 
     INPUT=/output/filename.b37_1kg.sorted.bam                                \
 
     INPUT=/output/filename.b37_1kg.sorted.bam                                \
 
     OUTPUT=/output/filename.b37_1kg.HsMetrics                                \
 
     OUTPUT=/output/filename.b37_1kg.HsMetrics                                \
Line 363: Line 239:
 
     TARGET_INTERVALS=/resources//hg19/intervals/GoNL.interval_list          \
 
     TARGET_INTERVALS=/resources//hg19/intervals/GoNL.interval_list          \
 
     VALIDATION_STRINGENCY=LENIENT                                            \
 
     VALIDATION_STRINGENCY=LENIENT                                            \
     TMP_DIR=/local
+
     TMP_DIR=/big/drive
 +
</span>
  
=== Split BAMS by Chromosome ===
+
=== Reduce Reads ===
  
BAMs are split into chromosomes BAMs. These files move on to variant calling.
+
java -Xmx4g -jar GenomeAnalysisTK.jar \
 
+
  -T ReduceReads                      \
=== Compress BAMS with ReduceRead ===
+
  -I Sample1.recal.bam                \
 +
  -o Sample1.reduced.bam              \
 +
  -R human_g1K_v37.fasta              \
 +
  2> ReduceReads.error
  
 
== Variant Calling ==
 
== Variant Calling ==
  
 
=== UnifiedGenotyper ===
 
=== UnifiedGenotyper ===
  java -jar GenomeAnalysisTK.jar \
+
  java -Xmx4g -jar GenomeAnalysisTK.jar \
   -R resources/Homo_sapiens_assembly18.fasta \
+
   -T UnifiedGenotyper                  \
   -T UnifiedGenotyper \
+
   -I Sample1.reduced.bam              \
   -I sample1.bam [-I sample2.bam ...] \
+
   -I Sample2.reduced.bam             \
   --dbsnp dbSNP.vcf \
+
  -I Background1.reduced.bam         \
   -o snps.raw.vcf \
+
   -I Background2.reduced.bam          \
   -stand_call_conf [50.0] \
+
   -o Sample1.raw.vcf                 \
   -stand_emit_conf 10.0 \
+
   -R human_g1K_v37.fasta              \
   -dcov [50 for 4x, 200 for >30x WGS or Whole exome] \
+
   --dbsnp dbSNP.vcf                    \
   [-L targets.interval_list]
+
   -dcov 250                          \
+
   -L TruSeq_exome_regions.bed        \
 
+
  2> UnifiedGenotyper.error
  
 
=== VariantRecalibrator ===
 
=== VariantRecalibrator ===
 
  java -Xmx4g -jar GenomeAnalysisTK.jar \
 
  java -Xmx4g -jar GenomeAnalysisTK.jar \
   -T VariantRecalibrator \
+
   -T VariantRecalibrator             \
   -R reference/human_g1k_v37.fasta \
+
   -R human_g1K_v37.fasta             \
   -input NA12878.HiSeq.WGS.bwa.cleaned.raw.subset.b37.vcf \
+
   -input Sample1.raw.vcf             \
   -resource:hapmap,known=false,training=true,truth=true,prior=15.0 hapmap_3.3.b37.sites.vcf \
+
   -resource:hapmap,known=false,training=true,truth=true,prior=15.0 hapmap_3.3.b37.vcf         \
   -resource:omni,known=false,training=true,truth=false,prior=12.0 1000G_omni2.5.b37.sites.vcf \
+
   -resource:omni,known=false,training=true,truth=true,prior=12.0 1000G_omni2.5.b37.vcf       \
   -resource:dbsnp,known=true,training=false,truth=false,prior=6.0 dbsnp_135.b37.vcf \
+
   -resource:dbsnp,known=true,training=false,truth=false,prior=6.0 dbsnp_137.b37.vcf           \
  -an QD -an HaplotypeScore -an MQRankSum -an ReadPosRankSum -an FS -an MQ -an InbreedingCoeff \
 
  -mode SNP \
 
  -recalFile path/to/output.recal \
 
  -tranchesFile path/to/output.tranches \
 
  -rscriptFile path/to/output.plots.R
 
 
=== ApplyRecalibration ===
 
java -Xmx3g -jar GenomeAnalysisTK.jar \
 
  -T ApplyRecalibration \
 
  -R reference/human_g1k_v37.fasta \
 
  -input NA12878.HiSeq.WGS.bwa.cleaned.raw.subset.b37.vcf \
 
  --ts_filter_level 99.0 \
 
  -tranchesFile path/to/output.tranches \
 
  -recalFile path/to/output.recal \
 
  -mode SNP \
 
  -o path/to/output.recalibrated.filtered.vcf
 
  
== Variant File Analyses ==
+
ADD 1KG
  
== Family Based Analyses ==
+
  -an QD -an HaplotypeScore -an MQRankSum -an ReadPosRankSum -an FS -an MQ -an InbreedingCoeff \
 +
  -mode SNP                          \
 +
  -recalFile Sample1.recal            \
 +
  -tranchesFile Sample1.tranches      \
 +
  -rscriptFile Sample1.plots.R        \
 +
  2> VariantRecalibrator.error
  
=== IBD/SGS ===
+
=== ApplyRecalibration ===
 
+
java -Xmx4g -jar GenomeAnalysisTK.jar \
=== Linkage ===
+
  -T ApplyRecalibration              \
 
+
  -input Sample1.raw.vcf              \
== Population Based Analyses ==
+
  -o Sample1.vqsr.vcf                \
 
+
  -R human_g1K_v37.fasta              \
=== Phasing ===
+
  --ts_filter_level 99.0                \
 
+
  -tranchesFile Sample1.tranches      \
=== FST ===
+
  -recalFile Sample1.recal            \
 
+
  -mode SNP                          \
== Phenotype Based Analyses ==
+
  2> ApplyRecalibration.error
  
=== GWAS ===
+
== Variant File QC ==
  
==== VAAST ====
+
<span style="background:#FFFF00">
 +
Quality Metrics on variants
 +
*Ti/Tv Ratio (2.1 for WGS ~2.8 for exome)
 +
*HapMap concordance
 +
*SNV/Indel Counts
 +
*Rare variant enrichment
 +
*DP
 +
*Q
 +
*GQ

Latest revision as of 19:04, 6 September 2013

Utah Genome Project

Variant Calling Pipeline Version 0.0.2

Sept. 2013

Data Source

Data sets used for the variant calling pipeline come from the Broad GSA (GATK) group as the 'GATK resource bundle 2.5' version 2.5

wget -r ftp://gsapubftp-anonymous@ftp.broadinstitute.org/bundle/2.5/b37
  • Reference Genome (GRCh37):
    • human_g1K_v37.fasta
  • High confidence SNVs
    • 1000G_omni2.5.b37.vcf
    • hapmap_3.3.b37.vcf
  • dbSNP
    • dbsnp_137.b37.vcf.gz
  • Known indels
    • Mills_and_1000G_gold_standard.indels.b37.vcf.gz
    • 1000G_phase1.indels.b37.vcf

Sequencing

This pipeline is designed for 100 bp Illumina HiSeq PE exome or WGS sequence data with Sanger/Illumina 1.9 quality encoding.

Validate File Integrity with md5sum

An md5sum signature should be provided for each FastQ file by the sequencing center. After the file has been downloaded, locally check the md5sum to be sure that no data corruption occurred during the file transfer.

md5sum file.fastq > file_local.md5
diff file_local.md5 file_provided.md5

If the md5sum signature differs from that provided for the file:

  • Check to be sure you have the correct file.
  • Check if the md5sum was calculated on that compressed or uncompressed file by the provider and be sure to do the same with the local copy.
  • Try the download again.
  • Contact the sequence provider.

FastQ File Analyses

fastqc Sample1_L1_R1.txt

From the fastqc_data.txt file we check the following values:

  • Encoding (must be Sanger / Illumina 1.9)
  • Total Sequences (Need to develop a acceptable range)
  • Filtered Sequences (Should be 0 or at least very low)
  • Sequence length (must be ~ 100 bp)
  • %GC (should be 45 < x < 55)
  • Total Duplicate Percentage (This value may not be valuable - an acceptable range has not been determined).

Alignment

Align reads to the genome with bwa.

Index the reference sequence if this has not already been done

bwa index -a bwtsw human_g1K_v37.fasta

The 'bwa aln' program will find the reference coordinates of the input reads (independent of their mate-pair). The following parameters are those used by the 1KG project for aligning Illumina data.

bwa aln -q 15 human_g1K_v37.fasta file.fastq > Sample1_L1_R1.sai # One lane of reads first in pair
bwa aln -q 15 human_g1K_v37.fasta file.fastq > Sample1_L1_R2.sai # One lane of reads second in pair

The 'bwa sampe'. For paired-end reads, the maximum insert size is taken to be 3 times the expected insert size.

bwa sampe -P human_g1K_v37.fasta Sample1_L1_R1.sai Sample1_L1_R1.sai Sample1_L1_R1.fastq Sample1_L1_R2.fastq | samtools view -bt human_g1K_v37.fasta.fai -o Sample1_L1 -

This will switch to bwa mem soon.

bwa mem human_g1K_v37.fasta Sample1_L1_R1.fq Sample1_L1_R2.fq | samtools view -bt human_g1K_v37.fasta.fai -o Sample1_L1 -

Bwa Command Line Options:

  • -n NUM max #diff (int) or missing prob under 0.02 err rate (float) [0.04]
  • -o INT maximum number or fraction of gap opens [1]
  • -e INT maximum number of gap extensions, -1 for disabling long gaps [-1]
  • -i INT do not put an indel within INT bp towards the ends [5]
  • -d INT maximum occurrences for extending a long deletion [10]
  • -l INT seed length [32]
  • -k INT maximum differences in the seed [2]
  • -m INT maximum entries in the queue [2000000]
  • -t INT number of threads [1]
  • -M INT mismatch penalty [3]
  • -O INT gap open penalty [11]
  • -E INT gap extension penalty [4]
  • -R INT stop searching when there are >INT equally best hits [30]
  • -q INT quality threshold for read trimming down to 35bp [0]
  • -c input sequences are in the color space
  • -L log-scaled gap penalty for long deletions
  • -N non-iterative mode: search for all n-difference hits (slooow)
  • -f FILE file to write output to instead of stdout

The AddOrReplaceReadGroups tool will add the correct readgroup ID to the BAM files

java -Xmx4g -jar picard-tools/AddOrReplaceReadGroups.jar \
   INPUT=Sample1_L1.bam                                             \
   OUTPUT=Sample1_L1.rg.bam                                         \
   CREATE_INDEX=TRUE                                                \
   VALIDATION_STRINGENCY=LENIENT                                    \
   SORT_ORDER=coordinate                                            \
   RGID=9958X1                                                      \
   RGLB=9958X1                                                      \
   RGPL=illumina                                                    \
   RGPU=1                                                           \
   TMP_DIR=/big/drive                                               \
   2> 9958X1_AddOrReplaceReadGroups.error

BAM File Analyses

Alignment BAM files are improved in various ways to help increase the quality and speed of subsequent variant calling steps.

Merge lane level BAMs to individual

java -Xmx4g -jar picard-tools/MergeSamFiles.jar \
    INPUT=Sample1_L1.rg.bam                     \
    INPUT=Sample1_L2.rg.bam                     \                                                                                                 
    OUTPUT=Sample1.bam                          \
    CREATE_INDEX=TRUE                           \
    ASSUME_SORTED=true                          \
    USE_THREADING=true                          \
    VALIDATION_STRINGENCY=SILENT                \
    TMP_DIR=/big/drive                          \
    2> MergeSameFiles.error

Mark Duplicates

Remove PCR/Optical duplicate reads

java -Xmx4g -jar MarkDuplicates.jar    \
   INPUT=Sample1.bam                   \
   OUTPUT=Sample1.dedup.bam            \
   METRICS_FILE=lane1_dup_metrics.txt  \
   ASSUME_SORTED=true                  \
   USE_THREADING=true                  \
   VALIDATION_STRINGENCY=SILENT        \
   TMP_DIR=/big/drive                  \
   2> MarkDuplicates.error

Develop range for duplicate levels here

Local Realignment of Indels

java -Xmx4g -jar GenomeAnalysisTK.jar                  \
   -I All_BAMs.list                                    \
   -o Realign_Intervals.txt                            \
   -T RealignerTargetCreator                           \
   -R human_g1K_v37.fasta                              \
   -known Mills_and_1000G_gold_standard.indels.b37.vcf \
   -known 1000G_phase1.indels.b37.vcf                  \
   -nt 24                                              \
   2> RealignerTargetCreator.error
java -Xmx4g -jar GenomeAnalysisTK.jar                  \
   -T IndelRealigner                                   \
   -I Sample1.dedup.bam                                \
   -o Sample1.realign.bam                              \
   -R human_g1K_v37.fasta                              \
   -targetIntervals Realign_Intervals.txt              \
   -known Mills_and_1000G_gold_standard.indels.b37.vcf \
   2> IndelRealigner.error

Base Quality Score Recalibration

java -Xmx4g -jar GenomeAnalysisTK.jar \
  -T PrintReads                       \
  -I Sample1.realign.bam              \
  -o Sample1.recal.bam                \
  -R human_g1K_v37.fasta              \
  -BQSR recalibration_report.grp      \


BAM Quality Control

CollectAlignmentSummaryMetrics

java -Xmx4g -jar /tools/picard-tools-1.32/CollectAlignmentSummaryMetrics.jar \
   I=/output/filename.b37_1kg.sorted.bam                                      \
   O=/output/filename.b37_1kg.AlignmentSummaryMetrics                         \
   R=human_g1K_v37.fasta                                                     \
   VALIDATION_STRINGENCY=LENIENT                                             \
   TMP_DIR=/big/drive

CollectGcBiasMetrics

java -Xmx4g -jar /tools/picard-tools-1.32/CollectGcBiasMetrics.jar \
   R=human_g1K_v37.fasta                                           \
   I=/output/filename.b37_1kg.sorted.bam                            \
   O=/output/filename.b37_1kg.GcBiasMetrics                         \
   CHART=/output/filename.b37_1kg.GcBiasMetrics.pdf                 \
   VALIDATION_STRINGENCY=LENIENT                                   \
   TMP_DIR=/big/drive

CollectInsertSizeMetrics

java -Xmx4g -jar /tools/picard-tools-1.32/CollectInsertSizeMetrics.jar \
   I=/output/filename.b37_1kg.sorted.bam                                \
   O=/output/filename.b37_1kg.CollectInsertSizeMetrics                  \
   H=/output/filename.b37_1kg.CollectInsertSizeMetrics.pdf              \
   VALIDATION_STRINGENCY=LENIENT                                       \
   TMP_DIR=/big/drive

MeanQualityByCycle

java -Xmx4g -jar /tools/picard-tools-1.32/MeanQualityByCycle.jar \
   I=/output/filename.b37_1kg.sorted.bam                          \
   O=/output/filename.b37_1kg.MeanQualityByCycle                  \
   CHART=/output/filename.b37_1kg.MeanQualityByCycle.pdf          \
   VALIDATION_STRINGENCY=LENIENT                                 \
   TMP_DIR=/big/drive

QualityScoreDistribution

java -Xmx4g -jar /tools/picard-tools-1.32/QualityScoreDistribution.jar  \
   I=/output/filename.b37_1kg.sorted.bam                                 \
   O=/output/filename.b37_1kg.[wiki:QualityScoreDistribution]            \
   CHART=/output/filename.b37_1kg.[wiki:QualityScoreDistribution].pdf    \
   VALIDATION_STRINGENCY=LENIENT                                        \
   TMP_DIR=/big/drive

BamIndexStats

java -Xmx4g -jar /tools/picard-tools-1.32/BamIndexStats.jar \
   INPUT=/output/filename.b37_1kg.sorted.bam                 \
   VALIDATION_STRINGENCY=LENIENT                            \
   TMP_DIR=/big/drive

CalculateHsMetricsWholeGenome

java -Xmx4g -jar /tools/picard-tools-1.32/CalculateHsMetricsWholeGenome.jar \
   INPUT=/output/filename.b37_1kg.sorted.bam                                 \
   OUTPUT=/output/filename.b37_1kg.HsMetrics                                 \
   BAIT_INTERVALS=/resources//hg19/intervals/GoNL.interval_list             \
   TARGET_INTERVALS=/resources//hg19/intervals/GoNL.interval_list           \
   VALIDATION_STRINGENCY=LENIENT                                            \
   TMP_DIR=/big/drive

Reduce Reads

java -Xmx4g -jar GenomeAnalysisTK.jar \
  -T ReduceReads                      \
  -I Sample1.recal.bam                \
  -o Sample1.reduced.bam              \
  -R human_g1K_v37.fasta              \
  2> ReduceReads.error

Variant Calling

UnifiedGenotyper

java -Xmx4g -jar GenomeAnalysisTK.jar \
  -T UnifiedGenotyper                  \
  -I Sample1.reduced.bam              \
  -I Sample2.reduced.bam              \
  -I Background1.reduced.bam          \
  -I Background2.reduced.bam          \
  -o Sample1.raw.vcf                  \
  -R human_g1K_v37.fasta              \
  --dbsnp dbSNP.vcf                    \
  -dcov 250                           \
  -L TruSeq_exome_regions.bed         \
  2> UnifiedGenotyper.error

VariantRecalibrator

java -Xmx4g -jar GenomeAnalysisTK.jar \
  -T VariantRecalibrator              \
  -R human_g1K_v37.fasta              \
  -input Sample1.raw.vcf              \
  -resource:hapmap,known=false,training=true,truth=true,prior=15.0 hapmap_3.3.b37.vcf          \
  -resource:omni,known=false,training=true,truth=true,prior=12.0 1000G_omni2.5.b37.vcf        \
  -resource:dbsnp,known=true,training=false,truth=false,prior=6.0 dbsnp_137.b37.vcf            \

ADD 1KG

  -an QD -an HaplotypeScore -an MQRankSum -an ReadPosRankSum -an FS -an MQ -an InbreedingCoeff \
  -mode SNP                           \
  -recalFile Sample1.recal            \
  -tranchesFile Sample1.tranches      \
  -rscriptFile Sample1.plots.R        \
  2> VariantRecalibrator.error

ApplyRecalibration

java -Xmx4g -jar GenomeAnalysisTK.jar \
  -T ApplyRecalibration               \
  -input Sample1.raw.vcf              \
  -o Sample1.vqsr.vcf                 \
  -R human_g1K_v37.fasta              \
  --ts_filter_level 99.0                \
  -tranchesFile Sample1.tranches      \
  -recalFile Sample1.recal            \
  -mode SNP                           \
  2> ApplyRecalibration.error

Variant File QC

Quality Metrics on variants

  • Ti/Tv Ratio (2.1 for WGS ~2.8 for exome)
  • HapMap concordance
  • SNV/Indel Counts
  • Rare variant enrichment
  • DP
  • Q
  • GQ