High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus)
Abstract The East Greenland-Svalbard-Barents Sea (EGSB) bowhead whale stock ( Balaena mysticetus ) was hunted to near extinction and remains Endangered on the International Union of Conservation of Nature Red List. The intense, temporally extensive hunting pressure may have left the population vulne...
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ftoslouniv:oai:www.duo.uio.no:10852/93779 2023-05-15T15:35:57+02:00 High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) ENEngelskEnglishHigh genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) Cerca, José Westbury, Michael V Heide-Jørgensen, Mads-Peter Kovacs, Kit M. Lorenzen, Eline D. Lydersen, Christian Shpak, Olga V. Wiig, Øystein Bachmann, Lutz 2022-04-13T07:21:14Z http://hdl.handle.net/10852/93779 https://doi.org/10.1038/s41598-022-09868-5 EN eng Nature Portfolio Cerca, José Westbury, Michael V Heide-Jørgensen, Mads-Peter Kovacs, Kit M. Lorenzen, Eline D. Lydersen, Christian Shpak, Olga V. Wiig, Øystein Bachmann, Lutz . High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus). Scientific Reports. 2022 http://hdl.handle.net/10852/93779 2017116 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=&rft.spage=&rft.date=2022 Scientific Reports 12 1 https://doi.org/10.1038/s41598-022-09868-5 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 2045-2322 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1038/s41598-022-09868-5 2022-04-27T22:34:04Z Abstract The East Greenland-Svalbard-Barents Sea (EGSB) bowhead whale stock ( Balaena mysticetus ) was hunted to near extinction and remains Endangered on the International Union of Conservation of Nature Red List. The intense, temporally extensive hunting pressure may have left the population vulnerable to other perturbations, such as environmental change. However, the lack of genomic baseline data renders it difficult to evaluate the impacts of various potential stressors on this stock. Twelve EGSB bowhead whales sampled in 2017/2018 were re-sequenced and mapped to a previously published draft genome. All individuals were unrelated and void of significant signs of inbreeding, with similar observed and expected homo- and heterozygosity levels. Despite the small population size, mean autosome-wide heterozygosity was 0.00102, which is higher than that of most mammals for which comparable estimates are calculated using the same parameters, and three times higher than a conspecific individual from the Eastern-Canada-West-Greenland bowhead whale stock. Demographic history analyses indicated a continual decrease of N e from ca. 1.5 million to ca. 250,000 years ago, followed by a slight increase until ca. 100,000 years ago, followed by a rapid decrease in N e between 50,000 and 10,000 years ago. These estimates are lower than previously suggested based on mitochondrial DNA, but suggested demographic patterns over time are similar. Article in Journal/Newspaper Balaena mysticetus Barents Sea bowhead whale East Greenland Greenland Svalbard Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Barents Sea Canada Greenland Svalbard Scientific Reports 12 1 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
description |
Abstract The East Greenland-Svalbard-Barents Sea (EGSB) bowhead whale stock ( Balaena mysticetus ) was hunted to near extinction and remains Endangered on the International Union of Conservation of Nature Red List. The intense, temporally extensive hunting pressure may have left the population vulnerable to other perturbations, such as environmental change. However, the lack of genomic baseline data renders it difficult to evaluate the impacts of various potential stressors on this stock. Twelve EGSB bowhead whales sampled in 2017/2018 were re-sequenced and mapped to a previously published draft genome. All individuals were unrelated and void of significant signs of inbreeding, with similar observed and expected homo- and heterozygosity levels. Despite the small population size, mean autosome-wide heterozygosity was 0.00102, which is higher than that of most mammals for which comparable estimates are calculated using the same parameters, and three times higher than a conspecific individual from the Eastern-Canada-West-Greenland bowhead whale stock. Demographic history analyses indicated a continual decrease of N e from ca. 1.5 million to ca. 250,000 years ago, followed by a slight increase until ca. 100,000 years ago, followed by a rapid decrease in N e between 50,000 and 10,000 years ago. These estimates are lower than previously suggested based on mitochondrial DNA, but suggested demographic patterns over time are similar. |
format |
Article in Journal/Newspaper |
author |
Cerca, José Westbury, Michael V Heide-Jørgensen, Mads-Peter Kovacs, Kit M. Lorenzen, Eline D. Lydersen, Christian Shpak, Olga V. Wiig, Øystein Bachmann, Lutz |
spellingShingle |
Cerca, José Westbury, Michael V Heide-Jørgensen, Mads-Peter Kovacs, Kit M. Lorenzen, Eline D. Lydersen, Christian Shpak, Olga V. Wiig, Øystein Bachmann, Lutz High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) |
author_facet |
Cerca, José Westbury, Michael V Heide-Jørgensen, Mads-Peter Kovacs, Kit M. Lorenzen, Eline D. Lydersen, Christian Shpak, Olga V. Wiig, Øystein Bachmann, Lutz |
author_sort |
Cerca, José |
title |
High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) |
title_short |
High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) |
title_full |
High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) |
title_fullStr |
High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) |
title_full_unstemmed |
High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus) |
title_sort |
high genomic diversity in the endangered east greenland svalbard barents sea stock of bowhead whales (balaena mysticetus) |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/93779 https://doi.org/10.1038/s41598-022-09868-5 |
geographic |
Barents Sea Canada Greenland Svalbard |
geographic_facet |
Barents Sea Canada Greenland Svalbard |
genre |
Balaena mysticetus Barents Sea bowhead whale East Greenland Greenland Svalbard |
genre_facet |
Balaena mysticetus Barents Sea bowhead whale East Greenland Greenland Svalbard |
op_source |
2045-2322 |
op_relation |
Cerca, José Westbury, Michael V Heide-Jørgensen, Mads-Peter Kovacs, Kit M. Lorenzen, Eline D. Lydersen, Christian Shpak, Olga V. Wiig, Øystein Bachmann, Lutz . High genomic diversity in the endangered East Greenland Svalbard Barents Sea stock of bowhead whales (Balaena mysticetus). Scientific Reports. 2022 http://hdl.handle.net/10852/93779 2017116 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=&rft.spage=&rft.date=2022 Scientific Reports 12 1 https://doi.org/10.1038/s41598-022-09868-5 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-022-09868-5 |
container_title |
Scientific Reports |
container_volume |
12 |
container_issue |
1 |
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1766366292667793408 |