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Erin Calfee
and I read this today and had a question — what are the admixture proportions behind fig 4? Does this effect of shorter tract lengths for stronger selection (conditioning on present-day allele frequency) depend on staying for a long time below the drift-barrier freq?
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Rasmus Nielsen 10. kol
Odgovor korisniku/ci @ErinCalfee @jesvedberg i 3 ostali
That is perhaps one way to look at it. Conditional on a high current frequency and an old introgression event, the paths with highest probabilities are paths where the increase in allele frequency is recent. 1/2
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Rasmus Nielsen 10. kol
Odgovor korisniku/ci @ErinCalfee @jesvedberg i 3 ostali
With a recent increase there is less chance of back-recombination to the introgressed haplotype background. Hence, the tracts will be shorter. 2/2
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