Historical biogeography and local adaptation explain population genetic structure in a widespread terrestrial orchid.

ABSTRACT:

Background and aims

Historical changes in environmental conditions and colonization-extinction dynamics have a direct impact on the genetic structure of plant populations. However, understanding how past environmental conditions influenced the evolution of species with high gene flow is challenging when signals for genetic isolation and adaptation are swamped by gene flow. We investigated the spatial distribution and genetic structure of the widespread terrestrial orchid Epipactis helleborine to identify glacial refugia, characterize postglacial population dynamics and assess its adaptive potential.

Methods

Ecological niche modelling was used to locate possible glacial refugia and postglacial recolonization opportunities of E. helleborine. A large single-nucleotide polymorph

SUBMITTER: Evans A 

PROVIDER: S-EPMC10147325 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature