PAYTON, Laura; LAST, Kim; GRIGOR, Jordan; NOIROT, Céline; HÜPPE, Lukas; CONWAY, David; DANNEMEYER, Mona; WILCOCKSON, David; MEYER, Bettina

doi:10.1111/mec.17425

Environnements et Paléoenvironnements OCéaniques [EPOC]

LAST, Kim
Scottish Association for Marine Science [SAMS]

GRIGOR, Jordan
Scottish Association for Marine Science [SAMS]

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Molecular Ecology. 2024-06-07, vol. 33, n° 13

Resumen en inglés

Abstract Annual rhythms are observed in living organisms with numerous ecological implications. In the zooplanktonic copepod Calanus finmarchicus , such rhythms are crucial regarding its phenology, body lipid accumulation, and global carbon storage. Climate change drives annual biological rhythms out of phase with the prevailing environmental conditions with yet unknown but potentially catastrophic consequences. However, the molecular dynamics underlying phenology are still poorly described. In a rhythmic analysis of C. finmarchicus annual gene expression, results reveal that more than 90% of the transcriptome shows significant annual rhythms, with abrupt and dramatic upheaval between the active and diapause life cycle states. This work explores the implication of the circadian clock in the annual timing, which may control epigenetic mechanisms to profoundly modulate gene expression in response to calendar time. Results also suggest an increased light sensitivity during diapause that would ensure the photoperiodic entrainment of the endogenous annual clock.< Leer menos

Palabras clave en inglés

circadian clock copepods diapause transcriptome zooplankton

circadian clock

copepods

diapause

transcriptome

zooplankton

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https://oskar-bordeaux.fr/handle/20.500.12278/205967

DOI

http://dx.doi.org/10.1111/mec.17425

Centros de investigación

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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Revealing the profound influence of diapause on gene expression: Insights from the annual transcriptome of the copepod Calanus finmarchicus

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Resumen en inglés

Palabras clave en inglés

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DOI

Centros de investigación