Habitat Predicts Levels of Genetic Admixture in Saccharomyces cerevisiae.

ABSTRACT: Genetic admixture can provide material for populations to adapt to local environments, and this process has played a crucial role in the domestication of plants and animals. The model yeast, Saccharomyces cerevisiae, has been domesticated multiple times for the production of wine, sake, beer, and bread, but the high rate of admixture between yeast lineages has so far been treated as a complication for population genomic analysis. Here, we make use of the low recombination rate at centromeres to investigate admixture in yeast using a classic Bayesian approach and a locus-by-locus phylogenetic approach. Using both approaches, we find that S. cerevisiae from stable oak woodland habitats are less likely to show recent genetic admixture compared with those isolated from transient

SUBMITTER: Tilakaratna V 

PROVIDER: S-EPMC5592920 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature