Calling only some positions
Posted in Ask the GATK team | Last updated on

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I'm trying to use GATK to validate reproducibility of the NGS part. We run the same sample 3 times on a MiSeq and I have a list of positions and I want to see if GATK has the same calls in all samples or not.

I'm trying to do it with this command:

RUNX.bam -> input bam files POSSITIONS.vcf -> vcf with 5035 different positions

(GATK v2.5-2-gf57256b) java - jar GenomeAnalysisTK -T HaplotypeCaller -R ucsc.hg19.fasta -I RUN1.bam -I RUN2.bam -I RUN3.bam -o RESULT.vcf --genotyping_mode GENOTYPE_GIVEN_ALLELES -alleles POSSITIONS.vcf -out_mode EMIT_ALL_SITES

I expected that my result have same amount of positions (calls), but my result only have ~2200

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