Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum
Ecosystem function and resilience is determined by the interactions and independent contributions of individual species. Apex predators play a disproportionately determinant role through their influence and dependence on the dynamics of prey species. Their demographic fluctuations are thus likely to...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995335 http://www.ncbi.nlm.nih.gov/pubmed/24497033 https://doi.org/10.1093/molbev/msu058 |
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ftpubmed:oai:pubmedcentral.nih.gov:3995335 2023-05-15T17:03:28+02:00 Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum Moura, Andre E. Janse van Rensburg, Charlene Pilot, Malgorzata Tehrani, Arman Best, Peter B. Thornton, Meredith Plön, Stephanie de Bruyn, P.J. Nico Worley, Kim C. Gibbs, Richard A. Dahlheim, Marilyn E. Hoelzel, Alan Rus 2014-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995335 http://www.ncbi.nlm.nih.gov/pubmed/24497033 https://doi.org/10.1093/molbev/msu058 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/24497033 http://dx.doi.org/10.1093/molbev/msu058 © The Author 2014. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY Discoveries Text 2014 ftpubmed https://doi.org/10.1093/molbev/msu058 2014-06-22T00:38:14Z Ecosystem function and resilience is determined by the interactions and independent contributions of individual species. Apex predators play a disproportionately determinant role through their influence and dependence on the dynamics of prey species. Their demographic fluctuations are thus likely to reflect changes in their respective ecological communities and habitat. Here, we investigate the historical population dynamics of the killer whale based on draft nuclear genome data for the Northern Hemisphere and mtDNA data worldwide. We infer a relatively stable population size throughout most of the Pleistocene, followed by an order of magnitude decline and bottleneck during the Weichselian glacial period. Global mtDNA data indicate that while most populations declined, at least one population retained diversity in a stable, productive ecosystem off southern Africa. We conclude that environmental changes during the last glacial period promoted the decline of a top ocean predator, that these events contributed to the pattern of diversity among extant populations, and that the relatively high diversity of a population currently in productive, stable habitat off South Africa suggests a role for ocean productivity in the widespread decline. Text Killer Whale Killer whale PubMed Central (PMC) Molecular Biology and Evolution 31 5 1121 1131 |
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Discoveries Moura, Andre E. Janse van Rensburg, Charlene Pilot, Malgorzata Tehrani, Arman Best, Peter B. Thornton, Meredith Plön, Stephanie de Bruyn, P.J. Nico Worley, Kim C. Gibbs, Richard A. Dahlheim, Marilyn E. Hoelzel, Alan Rus Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum |
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Discoveries |
description |
Ecosystem function and resilience is determined by the interactions and independent contributions of individual species. Apex predators play a disproportionately determinant role through their influence and dependence on the dynamics of prey species. Their demographic fluctuations are thus likely to reflect changes in their respective ecological communities and habitat. Here, we investigate the historical population dynamics of the killer whale based on draft nuclear genome data for the Northern Hemisphere and mtDNA data worldwide. We infer a relatively stable population size throughout most of the Pleistocene, followed by an order of magnitude decline and bottleneck during the Weichselian glacial period. Global mtDNA data indicate that while most populations declined, at least one population retained diversity in a stable, productive ecosystem off southern Africa. We conclude that environmental changes during the last glacial period promoted the decline of a top ocean predator, that these events contributed to the pattern of diversity among extant populations, and that the relatively high diversity of a population currently in productive, stable habitat off South Africa suggests a role for ocean productivity in the widespread decline. |
format |
Text |
author |
Moura, Andre E. Janse van Rensburg, Charlene Pilot, Malgorzata Tehrani, Arman Best, Peter B. Thornton, Meredith Plön, Stephanie de Bruyn, P.J. Nico Worley, Kim C. Gibbs, Richard A. Dahlheim, Marilyn E. Hoelzel, Alan Rus |
author_facet |
Moura, Andre E. Janse van Rensburg, Charlene Pilot, Malgorzata Tehrani, Arman Best, Peter B. Thornton, Meredith Plön, Stephanie de Bruyn, P.J. Nico Worley, Kim C. Gibbs, Richard A. Dahlheim, Marilyn E. Hoelzel, Alan Rus |
author_sort |
Moura, Andre E. |
title |
Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum |
title_short |
Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum |
title_full |
Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum |
title_fullStr |
Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum |
title_full_unstemmed |
Killer Whale Nuclear Genome and mtDNA Reveal Widespread Population Bottleneck during the Last Glacial Maximum |
title_sort |
killer whale nuclear genome and mtdna reveal widespread population bottleneck during the last glacial maximum |
publisher |
Oxford University Press |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995335 http://www.ncbi.nlm.nih.gov/pubmed/24497033 https://doi.org/10.1093/molbev/msu058 |
genre |
Killer Whale Killer whale |
genre_facet |
Killer Whale Killer whale |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/24497033 http://dx.doi.org/10.1093/molbev/msu058 |
op_rights |
© The Author 2014. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1093/molbev/msu058 |
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Molecular Biology and Evolution |
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31 |
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5 |
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1121 |
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1131 |
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1766057344794361856 |