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Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability

Late developmental stages of the marine copepods in the genus Calanus can spend extended periods in a dormant stage (diapause) that is preceded by the accumulation of large lipid stores. We assessed how lipid metabolism during development from the C4 stage to adult is altered in response to predatio...

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Autores principales: Skottene, Elise, Tarrant, Ann M., Altin, Dag, Olsen, Rolf Erik, Choquet, Marvin, Kvile, Kristina Ø.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7749129/
https://www.ncbi.nlm.nih.gov/pubmed/33339843
http://dx.doi.org/10.1038/s41598-020-79165-6
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author Skottene, Elise
Tarrant, Ann M.
Altin, Dag
Olsen, Rolf Erik
Choquet, Marvin
Kvile, Kristina Ø.
author_facet Skottene, Elise
Tarrant, Ann M.
Altin, Dag
Olsen, Rolf Erik
Choquet, Marvin
Kvile, Kristina Ø.
author_sort Skottene, Elise
collection PubMed
description Late developmental stages of the marine copepods in the genus Calanus can spend extended periods in a dormant stage (diapause) that is preceded by the accumulation of large lipid stores. We assessed how lipid metabolism during development from the C4 stage to adult is altered in response to predation risk and varying food availability, to ultimately understand more of the metabolic processes during development in Calanus copepods. We used RNA sequencing to assess if perceived predation risk in combination with varied food availability affects expression of genes associated with lipid metabolism and diapause preparation in C. finmarchicus. The lipid metabolism response to predation risk differed depending on food availability, time and life stage. Predation risk caused upregulation of lipid catabolism with high food, and downregulation with low food. Under low food conditions, predation risk disrupted lipid accumulation. The copepods showed no clear signs of diapause preparation, supporting earlier observations of the importance of multiple environmental cues in inducing diapause in C. finmarchicus. This study demonstrates that lipid metabolism is a sensitive endpoint for the interacting environmental effects of predation pressure and food availability. As diapause may be controlled by lipid accumulation, our findings may contribute towards understanding processes that can ultimately influence diapause timing.
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spelling pubmed-77491292020-12-22 Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability Skottene, Elise Tarrant, Ann M. Altin, Dag Olsen, Rolf Erik Choquet, Marvin Kvile, Kristina Ø. Sci Rep Article Late developmental stages of the marine copepods in the genus Calanus can spend extended periods in a dormant stage (diapause) that is preceded by the accumulation of large lipid stores. We assessed how lipid metabolism during development from the C4 stage to adult is altered in response to predation risk and varying food availability, to ultimately understand more of the metabolic processes during development in Calanus copepods. We used RNA sequencing to assess if perceived predation risk in combination with varied food availability affects expression of genes associated with lipid metabolism and diapause preparation in C. finmarchicus. The lipid metabolism response to predation risk differed depending on food availability, time and life stage. Predation risk caused upregulation of lipid catabolism with high food, and downregulation with low food. Under low food conditions, predation risk disrupted lipid accumulation. The copepods showed no clear signs of diapause preparation, supporting earlier observations of the importance of multiple environmental cues in inducing diapause in C. finmarchicus. This study demonstrates that lipid metabolism is a sensitive endpoint for the interacting environmental effects of predation pressure and food availability. As diapause may be controlled by lipid accumulation, our findings may contribute towards understanding processes that can ultimately influence diapause timing. Nature Publishing Group UK 2020-12-18 /pmc/articles/PMC7749129/ /pubmed/33339843 http://dx.doi.org/10.1038/s41598-020-79165-6 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Skottene, Elise
Tarrant, Ann M.
Altin, Dag
Olsen, Rolf Erik
Choquet, Marvin
Kvile, Kristina Ø.
Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability
title Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability
title_full Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability
title_fullStr Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability
title_full_unstemmed Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability
title_short Lipid metabolism in Calanus finmarchicus is sensitive to variations in predation risk and food availability
title_sort lipid metabolism in calanus finmarchicus is sensitive to variations in predation risk and food availability
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7749129/
https://www.ncbi.nlm.nih.gov/pubmed/33339843
http://dx.doi.org/10.1038/s41598-020-79165-6
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