Multi-Sample Indel Realignment Using Gatk
Is there a way to use the GATK Indel Realigner tool with a two-samples-input? The issue is that in my normal sample, several reads are mapped containing SNPs at specific positions, and ONE read having...
View ArticleReducing False Positive Indel Calls From Pindel
I am analyzing the specificity of Pindel's indel calls. I have matched tumor/normal WGS data, bwa aligned. The original calls were filtered to remove any that had supporting reads from the normal...
View ArticleComparative Genomic Analysis Of Bacterial Field Strains
Hi, I have a question on comparative genomics of bacterial field strains.If there is a very low number (only 30) of variants (base substitutions, indels etc) in a comparative genomics study of several...
View ArticleWhole Genome Dna Amplification Before Applying Wgs
Dear allWe have some DNA samples that I would like to run whole genome sequencing on. Unfortunately these samples only contain very little DNA (too little for WGS). It has then been suggested to do...
View ArticleHow To Call Snp And Indel Based On A Sanger Sequences Based Bac Contig Vs...
I have BAC contig, assembled from sanger sequences, that I want to use for quality control on my short read based SNP and indel call's.Which tool can I use to align the BAC sequence against the...
View ArticleHow Many Is Too Many? Germline And Somatic Coding Indels And Snps In Cancer...
Would anyone care to share their experience with variant calling in cancer genomics using tumor - normal pair to find somatic vs germline variants especially indels?I have been getting an unbelievably...
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 ArticleStrange variant call it show a indel but looks like a SNP
Hello all, i have a variant from a ION PGM sequencing, called with the ION Torrent variant caller plugin CHR POS ID REF ALT chr22 44324726 . T TG The flow cell...
View ArticleBenchmarking Read Alignment And Variant-Calling Algorithms (For Dummies)
Hi all, I am wondering if there is a good step by step guide of how to benchmark alignment and variant calling software. I do understand the premise e.g.Generate reads with known mutations Align to...
View ArticleHow Best To Add Custom Variation Track To Ucsc Browser?
I have generated sequence variants (SNPs/INDELs) by NGS resequencing and would like to display them on the UCSC browser (I have resequenced against a UCSC reference genome). Obviously i could use BED...
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 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 ArticleIndel and missing in mach phased output
In mach phased output, how does it represent missing genotypes and indels?
View ArticleComparing Genomic Assemblies To Find Indels
Hello everyone,We've sequenced a YAC containing a stretch of human DNA as an insert. We know what the insert sequence is supposed to be. However - as you could imagine - Illumina-based sequencing has...
View Article1000 Genomes Indel/Snps File
Is there any place to download 1000 genome SNPs and Indels data in a single merged file for each pilot (pilot 1 , 2 , and 3) ? I am trying to use GATK and thought to use 1KG indels and SNPs vcf files...
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Indel Left/Right Alignment
When matching indels between different VCF files (generated by different callers), there is this issue with left / right indel alignment, For example: Here is a real example for one indel (from the...
View ArticleStructural Variation Detection On A Short Reads Simulation
Hi,I am trying to do the following exercise (still playing with indels):simulate short reads (and indels) out of a human genome chromosome,align the short reads simulated in (1),call indels using a SV...
View ArticleGatk Indel Realignment Taking Forever! Help
Hi all, I am working on exome capture data for barley (1.3Gbp). I am interested in variant calling to find out SNPs in my sample. I have used SAMTools SNP calling and things get done in ~1 hr whereas...
View ArticleHow To Make A Circular Plot Of Snps And Indels ??
Hello everybody,I am analysing SNPs and INDELs in several prokaryotic genomes of the same strain. My goal is to compare them with a reference genome . I would like to learn how to plot the SNPs in a...
View ArticleLocating Indels In Gene
I have a excel file from windows (spreadsheet) contains start, end and indel sequences (-GGC means GGC deletion or +AAC means AAC insertion) in column 1, 2 and 3 respectively. I have a reference genome...
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