The genomic landscape at a late stage of stickleback speciation: High genomic divergence interspersed by small localized regions of introgression.

ABSTRACT: Speciation is a continuous process and analysis of species pairs at different stages of divergence provides insight into how it unfolds. Previous genomic studies on young species pairs have revealed peaks of divergence and heterogeneous genomic differentiation. Yet less known is how localised peaks of differentiation progress to genome-wide divergence during the later stages of speciation in the presence of persistent gene flow. Spanning the speciation continuum, stickleback species pairs are ideal for investigating how genomic divergence builds up during speciation. However, attention has largely focused on young postglacial species pairs, with little knowledge of the genomic signatures of divergence and introgression in older stickleback systems. The Japanese stickleback species pair, co

SUBMITTER: Ravinet M 

PROVIDER: S-EPMC5988309 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature