Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod
Abstract Although early embryonic protein production relies exclusively on maternal molecules such as messenger RNAs (mRNAs) incorporated into ovarian follicles, knowledge about any thermally induced, intergenerational effects is scarce in ectotherms. Here, we investigated how elevated temperatures...
Published in: | ICES Journal of Marine Science |
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Language: | English |
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Oxford University Press (OUP)
2024
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsae025 https://academic.oup.com/icesjms/article-pdf/81/4/733/57945921/fsae025.pdf |
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croxfordunivpr:10.1093/icesjms/fsae025 2024-09-09T19:29:43+00:00 Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod Skjærven, Kaja H Alix, Maud Kleppe, Lene Fernandes, Jorge M O Whatmore, Paul Nedoluzhko, Artem Andersson, Eva Kjesbu, Olav Sigurd Grant, W Stewart Research Council of Norway CLIMRATES Norwegian Fisheries Research Sales Tax System 2024 http://dx.doi.org/10.1093/icesjms/fsae025 https://academic.oup.com/icesjms/article-pdf/81/4/733/57945921/fsae025.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 81, issue 4, page 733-747 ISSN 1054-3139 1095-9289 journal-article 2024 croxfordunivpr https://doi.org/10.1093/icesjms/fsae025 2024-06-17T04:18:46Z Abstract Although early embryonic protein production relies exclusively on maternal molecules such as messenger RNAs (mRNAs) incorporated into ovarian follicles, knowledge about any thermally induced, intergenerational effects is scarce in ectotherms. Here, we investigated how elevated temperatures (9°–12°C vs. 6°C) during oogenesis influenced the next generation by targeting maternal mRNAs in Atlantic cod (Gadus morhua) embryos, in view of up- and down-regulated genes in ovarian follicles of pre-spawning adults. Overall, the spawning female liver showed significantly higher levels of free amino acids and N-metabolites at 9°C than at 6°C. Higher-than-optimal temperatures induced adjustments in embryo transcriptome proportional to the temperature increase relative to the control group. The adjustments included alterations in maternal-effect genes, which are developmentally conserved among vertebrates. The transcriptomic differences for a selection of genes in embryos were reflected in ovarian follicles (containing multiple cell types) several months ahead of the spawning season, implying that environmental conditions of the adults are key for adjusting the genetic instructions for offspring development. This programming of fundamental traits from mother to offspring appears part of a sophisticated process to adapt the offspring to a changing ocean, though within life stage-specific, physiological thermal tolerance windows. Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press ICES Journal of Marine Science 81 4 733 747 |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Although early embryonic protein production relies exclusively on maternal molecules such as messenger RNAs (mRNAs) incorporated into ovarian follicles, knowledge about any thermally induced, intergenerational effects is scarce in ectotherms. Here, we investigated how elevated temperatures (9°–12°C vs. 6°C) during oogenesis influenced the next generation by targeting maternal mRNAs in Atlantic cod (Gadus morhua) embryos, in view of up- and down-regulated genes in ovarian follicles of pre-spawning adults. Overall, the spawning female liver showed significantly higher levels of free amino acids and N-metabolites at 9°C than at 6°C. Higher-than-optimal temperatures induced adjustments in embryo transcriptome proportional to the temperature increase relative to the control group. The adjustments included alterations in maternal-effect genes, which are developmentally conserved among vertebrates. The transcriptomic differences for a selection of genes in embryos were reflected in ovarian follicles (containing multiple cell types) several months ahead of the spawning season, implying that environmental conditions of the adults are key for adjusting the genetic instructions for offspring development. This programming of fundamental traits from mother to offspring appears part of a sophisticated process to adapt the offspring to a changing ocean, though within life stage-specific, physiological thermal tolerance windows. |
author2 |
Grant, W Stewart Research Council of Norway CLIMRATES Norwegian Fisheries Research Sales Tax System |
format |
Article in Journal/Newspaper |
author |
Skjærven, Kaja H Alix, Maud Kleppe, Lene Fernandes, Jorge M O Whatmore, Paul Nedoluzhko, Artem Andersson, Eva Kjesbu, Olav Sigurd |
spellingShingle |
Skjærven, Kaja H Alix, Maud Kleppe, Lene Fernandes, Jorge M O Whatmore, Paul Nedoluzhko, Artem Andersson, Eva Kjesbu, Olav Sigurd Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod |
author_facet |
Skjærven, Kaja H Alix, Maud Kleppe, Lene Fernandes, Jorge M O Whatmore, Paul Nedoluzhko, Artem Andersson, Eva Kjesbu, Olav Sigurd |
author_sort |
Skjærven, Kaja H |
title |
Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod |
title_short |
Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod |
title_full |
Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod |
title_fullStr |
Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod |
title_full_unstemmed |
Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod |
title_sort |
ocean warming shapes embryonic developmental prospects of the next generation in atlantic cod |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/icesjms/fsae025 https://academic.oup.com/icesjms/article-pdf/81/4/733/57945921/fsae025.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science volume 81, issue 4, page 733-747 ISSN 1054-3139 1095-9289 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsae025 |
container_title |
ICES Journal of Marine Science |
container_volume |
81 |
container_issue |
4 |
container_start_page |
733 |
op_container_end_page |
747 |
_version_ |
1809898835001999360 |