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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ftdoajarticles:oai:doaj.org/article:a81cbf2d63db457289d78d3cd5aeade8 2023-06-11T04:07:14+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 2023-05-01T00:00:00Z https://doi.org/10.3390/genes14051038 https://doaj.org/article/a81cbf2d63db457289d78d3cd5aeade8 EN eng MDPI AG https://www.mdpi.com/2073-4425/14/5/1038 https://doaj.org/toc/2073-4425 doi:10.3390/genes14051038 2073-4425 https://doaj.org/article/a81cbf2d63db457289d78d3cd5aeade8 Genes, Vol 14, Iss 1038, p 1038 (2023) baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA Genetics QH426-470 article 2023 ftdoajarticles https://doi.org/10.3390/genes14051038 2023-05-28T00:34:03Z 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. Article in Journal/Newspaper Antarc* Antarctic Balaenoptera physalus baleen whale Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Pacific Southern Ocean Genes 14 5 1038 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA Genetics QH426-470 |
spellingShingle |
baleen whale population structure genomic analysis South Pacific South Atlantic ancient DNA Genetics QH426-470 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 Genetics QH426-470 |
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 |
Article in Journal/Newspaper |
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 |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/genes14051038 https://doaj.org/article/a81cbf2d63db457289d78d3cd5aeade8 |
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, Vol 14, Iss 1038, p 1038 (2023) |
op_relation |
https://www.mdpi.com/2073-4425/14/5/1038 https://doaj.org/toc/2073-4425 doi:10.3390/genes14051038 2073-4425 https://doaj.org/article/a81cbf2d63db457289d78d3cd5aeade8 |
op_doi |
https://doi.org/10.3390/genes14051038 |
container_title |
Genes |
container_volume |
14 |
container_issue |
5 |
container_start_page |
1038 |
_version_ |
1768380199012925440 |