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

Payton, L, Last, K, Grigor, J, Noirot, C, Hüppe, L, Conway, DVP, Dannemeyer, M, Wilcockson, DC and Meyer, B 2024 Revealing the profound influence of diapause on gene expression: Insights from the annual transcriptome of the copepod Calanus finmarchicus. Molecular Ecology, 33 (13). https://doi.org/10.1111/mec.17425

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Abstract/Summary

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

Item Type:	Publication - Article
Additional Keywords:	annual rhythms, circadian clock, copepods, diapause, transcriptome, zooplankton
Subjects:	Biology Marine Sciences Zoology
Divisions:	Marine Biological Association of the UK > Other (MBA)
Depositing User:	Ms Kristina Hixon
Date made live:	19 Jul 2024 11:06
Last Modified:	19 Jul 2024 11:06
URI:	https://plymsea.ac.uk/id/eprint/10239

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