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Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn

Long-chain polyunsaturated fatty acids (PUFA) are critical for reproduction and thermal adaptation. Year-round variability in the expression of fads2 (fatty acid desaturase 2) in the liver of European perch (Perca fluviatilis) in a boreal lake was tested in relation to individual variation in size,...

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Autores principales: Rigaud, Cyril, Kahilainen, Kimmo K., Calderini, Marco L., Pilecky, Matthias, Kainz, Martin J., Tiirola, Marja, Taipale, Sami J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10684423/
https://www.ncbi.nlm.nih.gov/pubmed/37975885
http://dx.doi.org/10.1007/s00442-023-05480-0
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author Rigaud, Cyril
Kahilainen, Kimmo K.
Calderini, Marco L.
Pilecky, Matthias
Kainz, Martin J.
Tiirola, Marja
Taipale, Sami J.
author_facet Rigaud, Cyril
Kahilainen, Kimmo K.
Calderini, Marco L.
Pilecky, Matthias
Kainz, Martin J.
Tiirola, Marja
Taipale, Sami J.
author_sort Rigaud, Cyril
collection PubMed
description Long-chain polyunsaturated fatty acids (PUFA) are critical for reproduction and thermal adaptation. Year-round variability in the expression of fads2 (fatty acid desaturase 2) in the liver of European perch (Perca fluviatilis) in a boreal lake was tested in relation to individual variation in size, sex, and maturity, together with stable isotopes values as well as fatty acids (FA) content in different tissues and prey items. ARA and DHA primary production was restricted to the summer months, however, perch required larger amounts of these PUFA during winter, as their ARA and DHA muscle content was higher compared to summer. The expression of fads2 in perch liver increased during winter and was higher in mature females. Mature females stored DHA in their gonads already in late summer and autumn, long before the upcoming spring spawning period in May. Lower δ(13)C(DHA) values in the gonads in September suggest that these females actively synthesized DHA as part of this reproductive investment. Lower δ(13)C(ARA) values in the liver of all individuals during winter suggest that perch were synthesizing essential FA to help cope with over-wintering conditions. Perch seem able to modulate its biosynthesis of physiologically required PUFA in situations of stress (fasting or cold temperatures) or in situations of high energetic demand (gonadal development). Biosynthesis of physiologically required PUFA may be an important part of survival and reproduction in aquatic food webs with long cold periods. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00442-023-05480-0.
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spelling pubmed-106844232023-11-30 Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn Rigaud, Cyril Kahilainen, Kimmo K. Calderini, Marco L. Pilecky, Matthias Kainz, Martin J. Tiirola, Marja Taipale, Sami J. Oecologia Original Research Long-chain polyunsaturated fatty acids (PUFA) are critical for reproduction and thermal adaptation. Year-round variability in the expression of fads2 (fatty acid desaturase 2) in the liver of European perch (Perca fluviatilis) in a boreal lake was tested in relation to individual variation in size, sex, and maturity, together with stable isotopes values as well as fatty acids (FA) content in different tissues and prey items. ARA and DHA primary production was restricted to the summer months, however, perch required larger amounts of these PUFA during winter, as their ARA and DHA muscle content was higher compared to summer. The expression of fads2 in perch liver increased during winter and was higher in mature females. Mature females stored DHA in their gonads already in late summer and autumn, long before the upcoming spring spawning period in May. Lower δ(13)C(DHA) values in the gonads in September suggest that these females actively synthesized DHA as part of this reproductive investment. Lower δ(13)C(ARA) values in the liver of all individuals during winter suggest that perch were synthesizing essential FA to help cope with over-wintering conditions. Perch seem able to modulate its biosynthesis of physiologically required PUFA in situations of stress (fasting or cold temperatures) or in situations of high energetic demand (gonadal development). Biosynthesis of physiologically required PUFA may be an important part of survival and reproduction in aquatic food webs with long cold periods. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00442-023-05480-0. Springer Berlin Heidelberg 2023-11-17 2023 /pmc/articles/PMC10684423/ /pubmed/37975885 http://dx.doi.org/10.1007/s00442-023-05480-0 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Research
Rigaud, Cyril
Kahilainen, Kimmo K.
Calderini, Marco L.
Pilecky, Matthias
Kainz, Martin J.
Tiirola, Marja
Taipale, Sami J.
Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
title Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
title_full Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
title_fullStr Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
title_full_unstemmed Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
title_short Preparing for the future offspring: European perch (Perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
title_sort preparing for the future offspring: european perch (perca fluviatilis) biosynthesis of physiologically required fatty acids for the gonads happens already in the autumn
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10684423/
https://www.ncbi.nlm.nih.gov/pubmed/37975885
http://dx.doi.org/10.1007/s00442-023-05480-0
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