Genomic divergence between two sister Ostrya species through linked selection and recombination.

ABSTRACT: Studying the evolution of genomic divergence between lineages is a topical issue in evolutionary biology. However, the evolutionary forces that shape the heterogeneous divergence of the genomic landscape are still poorly understood. Here, two wind-pollinated sister-species (Ostrya japonica and O. chinensis) are used to explore what these potential forces might be. A total of 40 individuals from 16 populations across their main distribution areas in China were sampled for genome-wide resequencing. Population demography analyses revealed that these two sister-species diverged at 3.06-4.43 Mya. Both population contraction and increased gene flow were detected during glacial periods, suggesting secondary contact at those times. All three parameters (D _XY, π, and

SUBMITTER: Zhang J 

PROVIDER: S-EPMC9754895 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature