Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales
Fin whales Balaenoptera physalus were hunted unsustainably across the globe in the 19th and 20th centuries, leading to vast reductions in population size. Whaling catch records indicate the importance of the Southern Ocean for this species; approximately 730,000 fin whales were harvested during the...
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ftmdpi:oai:mdpi.com:/2073-4425/14/5/1038/ 2023-08-20T04:01:24+02:00 Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales Danielle L. Buss Lane M. Atmore Maria H. Zicos William P. Goodall-Copestake Selina Brace Frederick I. Archer C. Scott Baker Ian Barnes Emma L. Carroll Tom Hart Andrew C. Kitchener Richard Sabin Angela L. Sremba Caroline R. Weir Jennifer A. Jackson agris 2023-05-03 application/pdf https://doi.org/10.3390/genes14051038 EN eng Multidisciplinary Digital Publishing Institute Population and Evolutionary Genetics and Genomics https://dx.doi.org/10.3390/genes14051038 https://creativecommons.org/licenses/by/4.0/ Genes; Volume 14; Issue 5; Pages: 1038 baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA Text 2023 ftmdpi https://doi.org/10.3390/genes14051038 2023-08-01T09:56:01Z Fin whales Balaenoptera physalus were hunted unsustainably across the globe in the 19th and 20th centuries, leading to vast reductions in population size. Whaling catch records indicate the importance of the Southern Ocean for this species; approximately 730,000 fin whales were harvested during the 20th century in the Southern Hemisphere (SH) alone, 94% of which were at high latitudes. Genetic samples from contemporary whales can provide a window to past population size changes, but the challenges of sampling in remote Antarctic waters limit the availability of data. Here, we take advantage of historical samples in the form of bones and baleen available from ex-whaling stations and museums to assess the pre-whaling diversity of this once abundant species. We sequenced 27 historical mitogenomes and 50 historical mitochondrial control region sequences of fin whales to gain insight into the population structure and genetic diversity of Southern Hemisphere fin whales (SHFWs) before and after the whaling. Our data, both independently and when combined with mitogenomes from the literature, suggest SHFWs are highly diverse and may represent a single panmictic population that is genetically differentiated from Northern Hemisphere populations. These are the first historic mitogenomes available for SHFWs, providing a unique time series of genetic data for this species. Text Antarc* Antarctic Balaenoptera physalus baleen whale Southern Ocean MDPI Open Access Publishing Antarctic Pacific Southern Ocean Genes 14 5 1038 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA |
spellingShingle |
baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA Danielle L. Buss Lane M. Atmore Maria H. Zicos William P. Goodall-Copestake Selina Brace Frederick I. Archer C. Scott Baker Ian Barnes Emma L. Carroll Tom Hart Andrew C. Kitchener Richard Sabin Angela L. Sremba Caroline R. Weir Jennifer A. Jackson Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales |
topic_facet |
baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA |
description |
Fin whales Balaenoptera physalus were hunted unsustainably across the globe in the 19th and 20th centuries, leading to vast reductions in population size. Whaling catch records indicate the importance of the Southern Ocean for this species; approximately 730,000 fin whales were harvested during the 20th century in the Southern Hemisphere (SH) alone, 94% of which were at high latitudes. Genetic samples from contemporary whales can provide a window to past population size changes, but the challenges of sampling in remote Antarctic waters limit the availability of data. Here, we take advantage of historical samples in the form of bones and baleen available from ex-whaling stations and museums to assess the pre-whaling diversity of this once abundant species. We sequenced 27 historical mitogenomes and 50 historical mitochondrial control region sequences of fin whales to gain insight into the population structure and genetic diversity of Southern Hemisphere fin whales (SHFWs) before and after the whaling. Our data, both independently and when combined with mitogenomes from the literature, suggest SHFWs are highly diverse and may represent a single panmictic population that is genetically differentiated from Northern Hemisphere populations. These are the first historic mitogenomes available for SHFWs, providing a unique time series of genetic data for this species. |
format |
Text |
author |
Danielle L. Buss Lane M. Atmore Maria H. Zicos William P. Goodall-Copestake Selina Brace Frederick I. Archer C. Scott Baker Ian Barnes Emma L. Carroll Tom Hart Andrew C. Kitchener Richard Sabin Angela L. Sremba Caroline R. Weir Jennifer A. Jackson |
author_facet |
Danielle L. Buss Lane M. Atmore Maria H. Zicos William P. Goodall-Copestake Selina Brace Frederick I. Archer C. Scott Baker Ian Barnes Emma L. Carroll Tom Hart Andrew C. Kitchener Richard Sabin Angela L. Sremba Caroline R. Weir Jennifer A. Jackson |
author_sort |
Danielle L. Buss |
title |
Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales |
title_short |
Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales |
title_full |
Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales |
title_fullStr |
Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales |
title_full_unstemmed |
Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales |
title_sort |
historical mitogenomic diversity and population structuring of southern hemisphere fin whales |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/genes14051038 |
op_coverage |
agris |
geographic |
Antarctic Pacific Southern Ocean |
geographic_facet |
Antarctic Pacific Southern Ocean |
genre |
Antarc* Antarctic Balaenoptera physalus baleen whale Southern Ocean |
genre_facet |
Antarc* Antarctic Balaenoptera physalus baleen whale Southern Ocean |
op_source |
Genes; Volume 14; Issue 5; Pages: 1038 |
op_relation |
Population and Evolutionary Genetics and Genomics https://dx.doi.org/10.3390/genes14051038 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/genes14051038 |
container_title |
Genes |
container_volume |
14 |
container_issue |
5 |
container_start_page |
1038 |
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1774724688142925824 |