Evidence for evolutionary adaptation of mixotrophic nanoflagellates to warmer temperatures.

ABSTRACT: Mixotrophs, organisms that combine photosynthesis and heterotrophy to gain energy, play an important role in global biogeochemical cycles. Metabolic theory predicts that mixotrophs will become more heterotrophic with rising temperatures, potentially creating a positive feedback loop that accelerates carbon dioxide accumulation in the atmosphere. Studies testing this theory have focused on phenotypically plastic (short-term, non-evolutionary) thermal responses of mixotrophs. However, as small organisms with short generation times and large population sizes, mixotrophs may rapidly evolve in response to climate change. Here, we present data from a 3-year experiment quantifying the evolutionary response of two mixotrophic nanoflagellates to temperature. We found evidence for adaptive evolution

SUBMITTER: Lepori-Bui M 

PROVIDER: S-EPMC9828162 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature