Rapid evolution destabilizes species interactions in a fluctuating environment.

ABSTRACT: Positive species interactions underlie the functioning of ecosystems. Given their importance, it is crucial to understand the stability of positive interactions over evolutionary timescales, in both constant and fluctuating environments; e.g., environments interrupted with periods of competition. We addressed this question using a two-species microbial system in which we modulated interactions according to the nutrient provided. We evolved in parallel four experimental replicates of species growing in isolation or together in consortia for 200 generations in both a constant and fluctuating environment with daily changes between commensalism and competition. We sequenced full genomes of single clones isolated at different time points during the experiment. We found that the two species coex

SUBMITTER: Rodriguez-Verdugo A 

PROVIDER: S-EPMC8027891 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature