Genome-wide patterns of divergence and introgression after secondary contact between Pungitius sticklebacks.

ABSTRACT: Speciation is a continuous process. Although it is known that differential adaptation can initiate divergence even in the face of gene flow, we know relatively little about the mechanisms driving complete reproductive isolation and the genomic patterns of divergence and introgression at the later stages of speciation. Sticklebacks contain many pairs of sympatric species differing in levels of reproductive isolation and divergence history. Nevertheless, most previous studies have focused on young species pairs. Here, we investigated two sympatric stickleback species, Pungitius pungitius and P. sinensis, whose habitats overlap in eastern Hokkaido; these species show hybrid male sterility, suggesting that they may be at a late stage of speciation. Our demographic analysis using

SUBMITTER: Yamasaki YY 

PROVIDER: S-EPMC7423276 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature