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Post-diapause Transcriptomic Restarts: Insight from a High-latitude Copepod by Vittoria Roncalli; Matthew C. Cieslak; Ann M. Castelfranco; Russell R. Hopcroft; Daniel K. Hartline; Petra H. Lenz is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Background Diapause is a seasonal dormancy that allows organisms to survive unfavorable conditions and optimizes the timing of reproduction and growth. Emergence from diapause reverses the state of arrested development and metabolic suppression returning the organism to an active state. The physiological mechanisms that regulate the transition from diapause to post-diapause are still unknown. In this study, this transition has been characterized for the sub-arctic calanoid copepod __Neocalanus flemingeri__, a key crustacean zooplankter that supports the highly productive North Pacific fisheries. Transcriptional profiling of females, determined over a two-week time series starting with diapausing females collected from > 400 m depth, characterized the molecular mechanisms that regulate the post-diapause trajectory. ## Results A complex set of transitions in relative gene expression defined the transcriptomic changes from diapause to post-diapause. Despite low temperatures (5–6 °C), the switch from a “diapause” to a “post-diapause” transcriptional profile occurred within 12 h of the termination stimulus. Transcriptional changes signaling the end of diapause were activated within o

Who reads Post-diapause Transcriptomic Restarts: Insight from a High-latitude Copepod?

Author

Vittoria Roncalli; Matthew C. Cieslak; Ann M. Castelfranco; Russell R. Hopcroft; Daniel K. Hartline; Petra H. Lenz

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)