Breeding system and geospatial variation shape the population genetics of Triodanis perfoliata.

ABSTRACT: Both intrinsic and extrinsic forces work together to shape connectivity and genetic variation in populations across the landscape. Here we explored how geography, breeding system traits, and environmental factors influence the population genetic patterns of Triodanis perfoliata, a widespread mix-mating annual plant in the contiguous US. By integrating population genomic data with spatial analyses and modeling the relationship between a breeding system and genetic diversity, we illustrate the complex ways in which these forces shape genetic variation. Specifically, we used 4705 single nucleotide polymorphisms to assess genetic diversity, structure, and evolutionary history among 18 populations. Populations with more obligately selfing flowers harbored less genetic diversity (π

SUBMITTER: Tackett M 

PROVIDER: S-EPMC9547245 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature