Question: from phased SNPs to haplotype blocks (or phase sets)
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gravatar for Nicola Casiraghi
8 months ago by
Germany, Heidelberg, DKFZ EMBL
Nicola Casiraghi450 wrote:

Hi all, I have successfully phased a set of heterozygous SNPs (only one sample) via the EAGLE2 phasing-only pipeline provided by the Sanger Imputation Server.

Specifically, the output that I got from the pipeline contains ~90% of the total number of the input SNPs and the output contains only SNPs with phased information 0|1 or 1|0.

I am now interested in define haplotype blocks accordingly with computed phase information. Usually, in a VCF file, haplotype blocks (or phase sets) have a unique identifier, which is attached to a genotype using the PS tag. The VCF output from EAGLE2 does not have the PS tag.

How can I group together phased SNPs belonging to the same haplotype block without having the PS tag?

thanks a lot for the help

ADD COMMENTlink modified 8 months ago • written 8 months ago by Nicola Casiraghi450
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