Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter
The pelagic tunicate Salpa thompsoni is recognized as a major metazoan grazer in the Southern Ocean. Long term observations show an increase in this species’ biomass and a southward shift in its distribution both of which are positively correlated with ocean warming and winter sea ice decline around...
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ftawi:oai:epic.awi.de:56713 2023-05-15T13:45:22+02:00 Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter Müller, Svenja J. Michael, Katharina Urso, Illenia Sales, Gabriele De Pitta, Cristiano Suberg, Lavinia Wessels, Wiebke Meyer, Bettina 2022-06-16 application/pdf https://epic.awi.de/id/eprint/56713/ https://epic.awi.de/id/eprint/56713/1/Mueller_etal2_022.pdf https://hdl.handle.net/10013/epic.7ab49c39-e7a7-4f7a-b1e8-1fdc8dad2c61 https://hdl.handle.net/ unknown Frontiers https://epic.awi.de/id/eprint/56713/1/Mueller_etal2_022.pdf https://hdl.handle.net/ Müller, S. J. , Michael, K. , Urso, I. , Sales, G. , De Pitta, C. , Suberg, L. , Wessels, W. and Meyer, B. orcid:0000-0001-6804-9896 (2022) Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter , Frontiers in Marine Science . doi:10.3389/fmars.2022.914095 <https://doi.org/10.3389/fmars.2022.914095> , hdl:10013/epic.7ab49c39-e7a7-4f7a-b1e8-1fdc8dad2c61 EPIC3Frontiers in Marine Science, Frontiers Article NonPeerReviewed 2022 ftawi https://doi.org/10.3389/fmars.2022.914095 2022-07-31T23:12:20Z The pelagic tunicate Salpa thompsoni is recognized as a major metazoan grazer in the Southern Ocean. Long term observations show an increase in this species’ biomass and a southward shift in its distribution both of which are positively correlated with ocean warming and winter sea ice decline around the Antarctic Peninsula. However, our understanding on how salps adapt their life cycle to the extreme seasonality of the Southern Ocean and the putative differences between its two reproductive forms (aggregates, solitaries) is rudimentary. In particular, our current knowledge of whether and how S. thompsoni overwinter is limited, largely due to winter sampling constraints. In this study, we investigated the form-specific gene expression profiles of Salpa thompsoni during the austral autumn and winter. Between the seasons, genes related to translation showed the biggest difference in gene expression. We found more genes were upregulated in solitaries compared to aggregates, indicating a potentially form-specific overwintering strategy. Our data provide first insights into the seasonal and form-specific physiology of salps by considering their complex life cycle, thereby contributing to a more comprehensive understanding of the response of salps to seasonal changes in their environment and to anthropogenic induced global climate change. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Frontiers in Marine Science 9 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The pelagic tunicate Salpa thompsoni is recognized as a major metazoan grazer in the Southern Ocean. Long term observations show an increase in this species’ biomass and a southward shift in its distribution both of which are positively correlated with ocean warming and winter sea ice decline around the Antarctic Peninsula. However, our understanding on how salps adapt their life cycle to the extreme seasonality of the Southern Ocean and the putative differences between its two reproductive forms (aggregates, solitaries) is rudimentary. In particular, our current knowledge of whether and how S. thompsoni overwinter is limited, largely due to winter sampling constraints. In this study, we investigated the form-specific gene expression profiles of Salpa thompsoni during the austral autumn and winter. Between the seasons, genes related to translation showed the biggest difference in gene expression. We found more genes were upregulated in solitaries compared to aggregates, indicating a potentially form-specific overwintering strategy. Our data provide first insights into the seasonal and form-specific physiology of salps by considering their complex life cycle, thereby contributing to a more comprehensive understanding of the response of salps to seasonal changes in their environment and to anthropogenic induced global climate change. |
format |
Article in Journal/Newspaper |
author |
Müller, Svenja J. Michael, Katharina Urso, Illenia Sales, Gabriele De Pitta, Cristiano Suberg, Lavinia Wessels, Wiebke Meyer, Bettina |
spellingShingle |
Müller, Svenja J. Michael, Katharina Urso, Illenia Sales, Gabriele De Pitta, Cristiano Suberg, Lavinia Wessels, Wiebke Meyer, Bettina Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter |
author_facet |
Müller, Svenja J. Michael, Katharina Urso, Illenia Sales, Gabriele De Pitta, Cristiano Suberg, Lavinia Wessels, Wiebke Meyer, Bettina |
author_sort |
Müller, Svenja J. |
title |
Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter |
title_short |
Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter |
title_full |
Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter |
title_fullStr |
Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter |
title_full_unstemmed |
Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter |
title_sort |
seasonal and form-specific gene expression signatures uncover different generational strategies of the pelagic tunicate salpa thompsoni during the southern ocean winter |
publisher |
Frontiers |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/56713/ https://epic.awi.de/id/eprint/56713/1/Mueller_etal2_022.pdf https://hdl.handle.net/10013/epic.7ab49c39-e7a7-4f7a-b1e8-1fdc8dad2c61 https://hdl.handle.net/ |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
op_source |
EPIC3Frontiers in Marine Science, Frontiers |
op_relation |
https://epic.awi.de/id/eprint/56713/1/Mueller_etal2_022.pdf https://hdl.handle.net/ Müller, S. J. , Michael, K. , Urso, I. , Sales, G. , De Pitta, C. , Suberg, L. , Wessels, W. and Meyer, B. orcid:0000-0001-6804-9896 (2022) Seasonal and Form-Specific Gene Expression Signatures Uncover Different Generational Strategies of the Pelagic Tunicate Salpa thompsoni During the Southern Ocean Winter , Frontiers in Marine Science . doi:10.3389/fmars.2022.914095 <https://doi.org/10.3389/fmars.2022.914095> , hdl:10013/epic.7ab49c39-e7a7-4f7a-b1e8-1fdc8dad2c61 |
op_doi |
https://doi.org/10.3389/fmars.2022.914095 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1766222927796109312 |