Hybridization and geographic distribution shapes the spatial genetic structure of two co-occurring orchid species.

ABSTRACT: Multiple ecological and life-history traits shape the fine-scale spatial genetic structure (FSGS) of a given population. The occurrence in core versus peripheral populations, levels of outcrossing, pollen and seed dispersal, and hybridization are important biological properties that influence the kinship of individuals within populations. We examined spatial genetic structure within 15 populations of Epidendrum fulgens and E. puniceoluteum distributed along a linear gradient of Brazilian coastal vegetation, including both allopatric and sympatric populations where the two orchid species hybridize. We analyzed 581 mapped specimens using nine simple sequence repeat loci, aiming to investigate how geographic distribution and hybridization shape within-population FSGS. A significant increase i

SUBMITTER: Sujii PS 

PROVIDER: S-EPMC6781141 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature