Phenotypic and genotypic convergences are influenced by historical contingency and environment in yeast.

ABSTRACT: Different organisms have independently and recurrently evolved similar phenotypic traits at different points throughout history. This phenotypic convergence may be caused by genotypic convergence and in addition, constrained by historical contingency. To investigate how convergence may be driven by selection in a particular environment and constrained by history, we analyzed nine life-history traits and four metabolic traits during an experimental evolution of six yeast strains in four different environments. In each of the environments, the population converged toward a different multivariate phenotype. However, the evolution of most traits, including fitness components, was constrained by history. Phenotypic convergence was partly associated with the selection of mutations in genes invol

SUBMITTER: Spor A 

PROVIDER: S-EPMC4439200 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature