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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ftawi:oai:epic.awi.de:50946 2023-05-15T13:45:21+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 DePitta, Cristiano 2019-09-25 application/pdf https://epic.awi.de/id/eprint/50946/ https://epic.awi.de/id/eprint/50946/1/Biscontin_etal.pdf https://hdl.handle.net/10013/epic.7b80c4a6-225f-48ac-9b89-19118d18bc12 https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/50946/1/Biscontin_etal.pdf https://hdl.handle.net/ Biscontin, A. , Martini, P. , Costa, R. , Kramer, A. , Meyer, B. orcid:0000-0001-6804-9896 , Kawaguchi, S. , Teschke, M. and DePitta, C. (2019) Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba , Scientific Reposrts, 9 (13894) . doi:10.1038/s41598-019-50282-1 <https://doi.org/10.1038/s41598-019-50282-1> , hdl:10013/epic.7b80c4a6-225f-48ac-9b89-19118d18bc12 EPIC3Scientific Reposrts, 9(13894) Article isiRev 2019 ftawi https://doi.org/10.1038/s41598-019-50282-1 2021-12-24T15:45:12Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Southern Ocean The Antarctic Scientific Reports 9 1 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
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 |
Article in Journal/Newspaper |
author |
Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias DePitta, Cristiano |
spellingShingle |
Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias DePitta, Cristiano Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba |
author_facet |
Biscontin, Alberto Martini, Paolo Costa, Rodolfo Kramer, Achim Meyer, Bettina Kawaguchi, So Teschke, Mathias DePitta, 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 |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/50946/ https://epic.awi.de/id/eprint/50946/1/Biscontin_etal.pdf https://hdl.handle.net/10013/epic.7b80c4a6-225f-48ac-9b89-19118d18bc12 https://hdl.handle.net/ |
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_source |
EPIC3Scientific Reposrts, 9(13894) |
op_relation |
https://epic.awi.de/id/eprint/50946/1/Biscontin_etal.pdf https://hdl.handle.net/ Biscontin, A. , Martini, P. , Costa, R. , Kramer, A. , Meyer, B. orcid:0000-0001-6804-9896 , Kawaguchi, S. , Teschke, M. and DePitta, C. (2019) Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba , Scientific Reposrts, 9 (13894) . doi:10.1038/s41598-019-50282-1 <https://doi.org/10.1038/s41598-019-50282-1> , hdl:10013/epic.7b80c4a6-225f-48ac-9b89-19118d18bc12 |
op_doi |
https://doi.org/10.1038/s41598-019-50282-1 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766221882419314688 |