Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba
Antarctic krill (Euphausia superba) is a high latitude pelagic organism which plays a central role in the Southern Ocean ecosystem. E. superba shows daily and seasonal rhythms in physiology and behaviour, which are synchronized with the environmental cycles of its habitat. Recently, the main compone...
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ftpubmed:oai:pubmedcentral.nih.gov:6761102 2023-05-15T13:45:57+02:00 Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias De Pittà, Cristiano 2019-09-25 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761102/ http://www.ncbi.nlm.nih.gov/pubmed/31554872 https://doi.org/10.1038/s41598-019-50282-1 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761102/ http://www.ncbi.nlm.nih.gov/pubmed/31554872 http://dx.doi.org/10.1038/s41598-019-50282-1 © The Author(s) 2019 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2019 ftpubmed https://doi.org/10.1038/s41598-019-50282-1 2019-11-17T01:15:14Z Antarctic krill (Euphausia superba) is a high latitude pelagic organism which plays a central role in the Southern Ocean ecosystem. E. superba shows daily and seasonal rhythms in physiology and behaviour, which are synchronized with the environmental cycles of its habitat. Recently, the main components of the krill circadian machinery have been identified and characterized. However, the exact mechanisms through which the endogenous timing system operates the control and regulation of the overt rhythms remains only partially understood. Here we investigate the involvement of the circadian clock in the temporal orchestration of gene expression by using a newly developed version of a krill microarray platform. The analysis of transcriptome data from krill exposed to both light-dark cycles (LD 18:6) and constant darkness (DD), has led to the identification of 1,564 putative clock-controlled genes. A remarkably large proportion of such genes, including several clock components (clock, period, cry2, vrille, and slimb), show oscillatory expression patterns in DD, with a periodicity shorter than 24 hours. Energy-storage pathways appear to be regulated by the endogenous clock in accordance with their ecological relevance in daily energy managing and overwintering. Our results provide the first representation of the krill circadian transcriptome under laboratory, free-running conditions. Text Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean PubMed Central (PMC) Antarctic Southern Ocean The Antarctic Scientific Reports 9 1 |
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Article Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias De Pittà, Cristiano Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
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description |
Antarctic krill (Euphausia superba) is a high latitude pelagic organism which plays a central role in the Southern Ocean ecosystem. E. superba shows daily and seasonal rhythms in physiology and behaviour, which are synchronized with the environmental cycles of its habitat. Recently, the main components of the krill circadian machinery have been identified and characterized. However, the exact mechanisms through which the endogenous timing system operates the control and regulation of the overt rhythms remains only partially understood. Here we investigate the involvement of the circadian clock in the temporal orchestration of gene expression by using a newly developed version of a krill microarray platform. The analysis of transcriptome data from krill exposed to both light-dark cycles (LD 18:6) and constant darkness (DD), has led to the identification of 1,564 putative clock-controlled genes. A remarkably large proportion of such genes, including several clock components (clock, period, cry2, vrille, and slimb), show oscillatory expression patterns in DD, with a periodicity shorter than 24 hours. Energy-storage pathways appear to be regulated by the endogenous clock in accordance with their ecological relevance in daily energy managing and overwintering. Our results provide the first representation of the krill circadian transcriptome under laboratory, free-running conditions. |
format |
Text |
author |
Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias De Pittà, Cristiano |
author_facet |
Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias De Pittà, Cristiano |
author_sort |
Biscontin, Alberto |
title |
Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
title_short |
Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
title_full |
Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
title_fullStr |
Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
title_full_unstemmed |
Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
title_sort |
analysis of the circadian transcriptome of the antarctic krill euphausia superba |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761102/ http://www.ncbi.nlm.nih.gov/pubmed/31554872 https://doi.org/10.1038/s41598-019-50282-1 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761102/ http://www.ncbi.nlm.nih.gov/pubmed/31554872 http://dx.doi.org/10.1038/s41598-019-50282-1 |
op_rights |
© The Author(s) 2019 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-50282-1 |
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Scientific Reports |
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9 |
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