Variable hybridization outcomes in trout are predicted by historical fish stocking and environmental context.

ABSTRACT: Hybridization can profoundly affect the genomic composition and phenotypes of closely related species, and provides an opportunity to identify mechanisms that maintain reproductive isolation between species. Recent evidence suggests that hybridization outcomes within a species pair can vary across locations. However, we still do not know how variable outcomes of hybridization are across geographic replicates, and what mechanisms drive that variation. In this study, we described hybridization outcomes across 27 locations in the North Fork Shoshone River basin (Wyoming, USA) where native Yellowstone cutthroat trout and introduced rainbow trout co-occur. We used genomic data and hierarchical Bayesian models to precisely identify ancestry of hybrid individuals. Hybridization outcomes varied ac

SUBMITTER: Mandeville EG 

PROVIDER: S-EPMC6775767 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature