Molecular mechanisms of temperature acclimation and adaptation in marine diatoms.

ABSTRACT: Diatoms are important contributors to marine primary production and the ocean carbon cycle, yet the molecular mechanisms that regulate their acclimation and adaptation to temperature are poorly understood. Here we use a transcriptomic approach to investigate the molecular mechanisms associated with temperature acclimation and adaptation in closely related colder- and warmer-adapted diatom species. We find evidence that evolutionary changes in baseline gene expression, which we termed transcriptional investment or divestment, is a key mechanism used by diatoms to adapt to different growth temperatures. Invested and divested pathways indicate that the maintenance of protein processing machinery and membrane structure, important short-term physiological mechanisms used to respond to temperatu

SUBMITTER: Liang Y 

PROVIDER: S-EPMC6776047 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature