Two light sensors decode moonlight versus sunlight to adjust a plastic circadian/circalunidian clock to moon phase.

ABSTRACT: Many species synchronize their physiology and behavior to specific hours. It is commonly assumed that sunlight acts as the main entrainment signal for ∼24-h clocks. However, the moon provides similarly regular time information. Consistently, a growing number of studies have reported correlations between diel behavior and lunidian cycles. Yet, mechanistic insight into the possible influences of the moon on ∼24-h timers remains scarce. We have explored the marine bristleworm Platynereis dumerilii to investigate the role of moonlight in the timing of daily behavior. We uncover that moonlight, besides its role in monthly timing, also schedules the exact hour of nocturnal swarming onset to the nights’ darkest times. Our work reveals that extended moonlight impacts on a plastic clock that exhibi

SUBMITTER: Zurl M 

PROVIDER: S-EPMC9295771 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature