Next Gen Sequencing Indel Realignment With The Genome Analysis Toolkit (Gatk)
As I continue to add steps to my SNP/Indel discovery workflow, the latest recommendation is local realignment around Indels using GATK following the initial alignment step. I have just commenced the...
View ArticleMerging/Concatenating Vcf Files
I have a vcf file of SNPs and another vcf file for my Indels. During SNP calling step by GATK, I created them separately instead of using -glm (calling together SNPs and Indels). Now to get the...
View ArticleSamtools / Bcftools Missing Random Obvious Single Base Indels
I am using samtools to call variants in a haploid genome (yes I know it is designed for diploid). It finds SNPs easily, and most of the indels, but there are a few indels it can NOT seem to find no...
View ArticleSequence Variation Detection For Prokaryotic Genomes
I have resequenced a bacterial genome using SOLiD paired end reads. After looking at SNPs and small Indels, I'm now interested in large Insertions/Deletions (Size of genes and gene clusters).Which...
View ArticleIndel Discovery Delly, Pindel, Samtools, Gatk
I'm testing out samtools vs GATK for snp and indel calling, and looking at using pindel for SV in particular focusing on insertions and Delly for the other SV. What experience do people have of SNP...
View ArticleStrelka Indel Allele Counts
Hopefully there are some Strelka users out there who can help with this one. I'm looking for allelic counts of the ref and non-ref allele of the indels.I see these flags in the VCF header, do these...
View ArticleSplit Vcf File Into Snps And Indels
Hi there,As recommended in the GATK best practices the Variant Quality Score Recalibration has to be done separately for SNPs and Indels. But, I didn't find the way to do this split in a clean way (for...
View ArticleFiltering Vcf File
I was wondering how to filter the vcf file based on a few input arguments ( DP>10, MQ>30 and QD>20 or GT = "1/1" etc)? I m planning to use simple command on the command line to extract the...
View ArticleTrio: Detecting A Large De Novo Indel
I've been given a set of three BAM (father, mother, child) and I expect the child to contains some de-novo heterozygous variations . samtools mpileup have been used to find the small variations but...
View ArticlePindel Error: Shiftedvector Out-Of-Range Error
Hello,I’ve been running pindel like so: pindel --config-file bam_config.txt --fasta /path/to/hg19/fasta/ --chromosome ALL --output-prefix /path/to/outputand I’ve noticed a lot of my pindel jobs fail...
View ArticleNgs Tool Analysis For Snp&Indel Calling Of Pooling Data
What are the best and most used analysis tool actually, for SNP and indel calling of pooled data?I'm using: GATK Freebayes that have specified options for data in pool.Now I have found CRISP.Are there...
View ArticleChip-Seq Peak Caller Able To Find Peaks Split By Indels?
Are there any chip-seq peak callers able to find cases where the region under a peak has been split by an indel between the reference and the chipped sample?For example, let's suppose one has done...
View ArticleMerging Vcf Files And Filling In Missing Genotypes
I have vcf files with genomic variants (e.g. SNPs and Indels) from several patients. I now want to merge them into one vcf file e.g. using vcftools' merge-vcf. Doing that I get a file that holds for...
View ArticleTool: Varscan: Variant Detection In Massively Parallel Sequencing Data
VarScan is a platform-independent mutation caller for targeted, exome, and whole-genome resequencing data generated on Illumina, SOLiD, IonTorrent, Roche/454, and similar instruments. The newest...
View ArticleTool: Phylosim - Monte Carlo Simulation Of Sequence Evolution In The R...
PhyloSimPhyloSim is an extensible object-oriented framework for the Monte Carlo simulation of sequence evolution written in 100 percent R. It is built on the top of the R.oo and ape packages and uses...
View ArticleBest Way To Compare Output Snp/Indels From Different Software?
I have a list of SNPs and indels from 4 different software. IndelGenotyper (broad tool)—for calling somatic indels Bambino—for calling SNP/Indels Somaticsniper—SNP calling Varscan – indel/snp/LOH Now...
View ArticleWhat Approach Would You Recommend For Large Indel Detection With Solid Data
I've been spending quite some time on following problem: I sequenced a bacterial genome using paired-end reads (SOLiD) and I have a quite good reference sequence. My goal is to detect changes in the...
View ArticleExtracting Two Bam Files And Indexing Them To Compare Indels
I need to fetch 2 BAM files from an HTTP server and I only need 'chr1' so I'm attempting to use:samtools view -h http://cdna.eva.mpg.de/denisova/alignments/T_hg19_1000g.bam chr1 chr1.bamfor each file...
View ArticleSamtools: Local Realignment Around Indel
In samtools mpileup, adjust the option -m and -F to control when want to initiate indel realignment, any guideline to set the values for m and F for high coverage data (eg. >=20X)low coverage data...
View ArticleAnyone Know A *General* Variant (Snp/Indel) Effect Predictor / Annotator?
I'm looking for a general variant annotator ... one that would call a variant as synonymous, non-synonymous, non-genic, UTR, frame-shift, truncation, etc. By general I mean that we should be able to...
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