Asymmetric introgression reveals the genetic architecture of a plumage trait.

ABSTRACT: Genome-wide variation in introgression rates across hybrid zones offers a powerful opportunity for studying population differentiation. One poorly understood pattern of introgression is the geographic displacement of a trait implicated in lineage divergence from genome-wide population boundaries. While difficult to interpret, this pattern can facilitate the dissection of trait genetic architecture because traits become uncoupled from their ancestral genomic background. We studied an example of trait displacement generated by the introgression of head plumage coloration from personata to alba subspecies of the white wagtail. A previous study of their hybrid zone in Siberia revealed that the geographic transition in this sexual signal that mediates assortative mating was offset from other tr

SUBMITTER: Semenov GA 

PROVIDER: S-EPMC7884433 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature