Genomic and geographic footprints of differential introgression between two divergent fish species (Solea spp.).

ABSTRACT: Investigating gene flow between closely related species and its variation across the genome is important to understand how reproductive barriers shape genome divergence before speciation is complete. An efficient way to characterize differential gene flow is to study how the genetic interactions that take place in hybrid zones selectively filter gene exchange between species, leading to heterogeneous genome divergence. In the present study, genome-wide divergence and introgression patterns were investigated between two sole species, Solea senegalensis and Solea aegyptiaca, using restriction-associated DNA sequencing (RAD-Seq) to analyze samples taken from a transect spanning the hybrid zone. An integrative approach combining geographic and genomic clines methods with an analysis of individ

SUBMITTER: Souissi A 

PROVIDER: S-EPMC6221876 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature