Mating systems and recombination landscape strongly shape genetic diversity and selection in wheat relatives.

ABSTRACT: How and why genetic diversity varies among species is a long-standing question in evolutionary biology. Life history traits have been shown to explain a large part of observed diversity. Among them, mating systems have one of the strongest impacts on genetic diversity, with selfing species usually exhibiting much lower diversity than outcrossing relatives. Theory predicts that a high rate of selfing amplifies selection at linked sites, reducing genetic diversity genome-wide, but frequent bottlenecks and rapid population turn-over could also explain low genetic diversity in selfers. However, how linked selection varies with mating systems and whether it is sufficient to explain the observed difference between selfers and outcrossers has never been tested. Here, we used the Aegilops/<

SUBMITTER: Burgarella C 

PROVIDER: S-EPMC11637685 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature