Loss of transcriptional plasticity but sustained adaptive capacity after adaptation to global change conditions in a marine copepod.

ABSTRACT: Adaptive evolution and phenotypic plasticity will fuel resilience in the geologically unprecedented warming and acidification of the earth's oceans, however, we have much to learn about the interactions and costs of these mechanisms of resilience. Here, using 20 generations of experimental evolution followed by three generations of reciprocal transplants, we investigated the relationship between adaptation and plasticity in the marine copepod, Acartia tonsa, in future global change conditions (high temperature and high CO₂). We found parallel adaptation to global change conditions in genes related to stress response, gene expression regulation, actin regulation, developmental processes, and energy production. However, reciprocal transplantation showed that adaptation resulted in

SUBMITTER: Brennan RS 

PROVIDER: S-EPMC8894427 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature