Strong postmating reproductive isolation in Mimulus section Eunanus.

ABSTRACT: Postmating reproductive isolation can help maintain species boundaries when premating barriers to reproduction are incomplete. The strength and identity of postmating reproductive barriers are highly variable among diverging species, leading to questions about their genetic basis and evolutionary drivers. These questions have been tackled in model systems but are less often addressed with broader phylogenetic resolution. In this study we analyse patterns of genetic divergence alongside direct measures of postmating reproductive barriers in an overlooked group of sympatric species within the model monkeyflower genus, Mimulus. Within this Mimulus brevipes species group, we find substantial divergence among species, including a cryptic genetic lineage. However, rampant gene discordance and an

SUBMITTER: Farnitano MC 

PROVIDER: S-EPMC10592011 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature