Parallel genetic adaptation across environments differing in mode of growth or resource availability.

ABSTRACT: Evolution experiments have demonstrated high levels of genetic parallelism between populations evolving in identical environments. However, natural populations evolve in complex environments that can vary in many ways, likely sharing some characteristics but not others. Here, we ask whether shared selection pressures drive parallel evolution across distinct environments. We addressed this question in experimentally evolved populations founded from a clone of the bacterium Burkholderia cenocepacia. These populations evolved for 90 days (approximately 600 generations) under all combinations of high or low carbon availability and selection for either planktonic or biofilm modes of growth. Populations that evolved in environments with shared selection pressures (either level of carbon a

SUBMITTER: Turner CB 

PROVIDER: S-EPMC6121802 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature