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bcftools merge --info-rules - doesn't disable rules

Open audrey-bollas opened this issue 2 years ago • 1 comments

Hello, I am not sure if the intended output is not working, or my expectation of what should happen is incorrect.

Bcftools installation:

wget https://github.com/samtools/bcftools/releases/download/1.18/bcftools-1.18.tar.bz2 
tar -xvf bcftools-1.18.tar.bz2
cd bcftools-1.18/
./configure --prefix=$PWD
make
make install

I am merging three VCF files and I want to keep the INFO fields from the first VCF file after merging. The first variant line in the original VCF looks like this:

#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	SAMPLE_ORIG
chr1	942451	.	T	C	840.06	.	AC=2;AF=1;AN=2;DP=33;ExcessHet=0;FS=0;MBQ=0,22;MFRL=0,421;MLEAC=2;MLEAF=1;MMQ=60,60;MPOS=38;MQ=60;NCount=0;QD=26.25;SOR=1.284	GT:AD:AF:DP:GQ:PL	1/1:0,32:1:32:95:854,95,0

I run:

bcftools merge -i - $vcf $vcf2 $vcf3 -Oz -o merged.vcf.gz

The same variant line in merged.vcf.gz looks like this:

#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	SAMPLE_ORIG   SAMPLE_2   SAMPLE_3
chr1	942451	.	T	C	875.06	.	DP=33;ExcessHet=0;FS=0;MQ=60;NCount=0;QD=26.25;SOR=1.284;AF=1;MBQ=0,25;MFRL=0,377;MLEAC=2;MLEAF=1;MMQ=60,60;MPOS=27;AN=6;AC=6	GT:AD:AF:DP:GQ:PL	1/1:0,32:1:32:95:854,95,0	1/1:0,33:1:33:99:889,99,0	1/1:0,23:1:23:69:661,69,0

The INFO/DP value from the original VCF was retained. However, other INFO (MBQ=0,25;MFRL=0,377;MPOS=27;AN=6;AC=6) was changed. I thought the '-i -' parameter would affect the rules of all the INFO fields but it looks like it just affects the DP field. Is this correct? How to I apply this logic to the rest of my INFO fields?

Thank you!

audrey-bollas avatar Aug 08 '23 17:08 audrey-bollas

I am unable to reproduce the problem. Can you show the header (definitions of all tags with unexpected outcome), plus one input line in all three VCFs?

pd3 avatar Aug 14 '23 12:08 pd3