Multiomics integration unveils photoperiodic plasticity in the molecular rhythms of marine phytoplankton.

ABSTRACT: Earth's tilted rotation and translation around the Sun produce pervasive rhythms on our planet, giving rise to photoperiodic changes in diel cycles. Although marine phytoplankton plays a key role in ecosystems, multiomics analysis of its responses to these periodic environmental signals remains largely unexplored. The marine picoalga Ostreococcus tauri was chosen as a model organism due to its cellular and genomic simplicity. Ostreococcus was subjected to different light regimes to investigate its responses to periodic environmental signals: long summer days, short winter days, constant light, and constant dark conditions. Although <5% of the transcriptome maintained oscillations under both constant conditions, 80% presented diel rhythmicity. A drastic reduction in diel rhythmicity was obs

SUBMITTER: Romero-Losada AB 

PROVIDER: S-EPMC12216367 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature