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  • odoyle81
    Member
    • Aug 2011
    • 31

    SNPs to genotypes file?

    Is there an easy way to convert a set of SNPs (in hapmap or vcf format) into a genotype file that could be used by something like R/qtl?
    By a genotype file I mean something where columns are markers, rows are different lines, and the data is coded as either A (parent 1), B (parent 2), or H (het):
    marker1 marker2
    parent1 A A
    parent2 B B
    line1 A B
    line2 B A
    line3 H A

    I do have the calls for each parent.. but these are different than the reference that was used to generate the hapmap/vcf files.
    Seems like I could write a script to do this, or use excel, but surely there is a tool out there for this sort of thing?

    Thanks!

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