Outcrossing rates in an experimentally admixed population of self-compatible and self-incompatible Arabidopsis lyrata.

ABSTRACT: The transition to self-compatibility from self-incompatibility is often associated with high rates of self-fertilization, which can restrict gene flow among populations and cause reproductive isolation of self-compatible (SC) lineages. Secondary contact between SC and self-incompatible (SI) lineages might re-establish gene flow if SC lineages remain capable of outcrossing. By contrast, intrinsic features of SC plants that reinforce high rates of self-fertilization could maintain evolutionary divergence between lineages. Arabidopsis lyrata subsp. lyrata is characterized by multiple origins of self-compatibility and high rates of self-fertilization in SC-dominated populations. It is unclear whether these high rates of selfing by SC plants have intrinsic or extrinsic causes. We estimated outc

SUBMITTER: Steinecke C 

PROVIDER: S-EPMC8733029 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature