Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale
This paper reviews genetic studies undertaken to generate an accurate phylogeny of killer whale (Orcinus orca) lineages. Three phylogenies, distinct in branching order and timing of divergences, are discussed. Of the three phylogenies, two are based on mitochondrial DNA and show more ancient diverge...
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ftcdlib:qt7gc0d2hg 2023-05-15T17:03:15+02:00 Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale Stokes, Arianna 2018-08-08 application/pdf http://www.escholarship.org/uc/item/7gc0d2hg english eng eScholarship, University of California qt7gc0d2hg http://www.escholarship.org/uc/item/7gc0d2hg public Stokes, Arianna. (2018). Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale. UC Davis: University Library, University of California, Davis. Retrieved from: http://www.escholarship.org/uc/item/7gc0d2hg Life Sciences killer whale article 2018 ftcdlib 2018-08-10T22:52:03Z This paper reviews genetic studies undertaken to generate an accurate phylogeny of killer whale (Orcinus orca) lineages. Three phylogenies, distinct in branching order and timing of divergences, are discussed. Of the three phylogenies, two are based on mitochondrial DNA and show more ancient divergence times for killer whale lineages. The third phylogeny, based on nuclear DNA, indicates that killer whales diversified more recently. The differing phylogenies have differing implications for biogeographic inference and for species assessments. The nuclear based phylogeny suggests that killer whale lineages diverged in sympatry while the mitochondrial based phylogenies as well as an empirical study indicate that the divergences more likely occurred in allopatry. The mitochondrial based phylogenies also support revision of killer whale taxonomy as there is indication that killer whales constitute multiple species and subspecies instead of a single species. The types of research that would be helpful in confirming hypotheses based on the phylogenies are discussed. Article in Journal/Newspaper Killer Whale Orca Orcinus orca Killer whale University of California: eScholarship |
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University of California: eScholarship |
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English |
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Life Sciences killer whale |
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Life Sciences killer whale Stokes, Arianna Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale |
topic_facet |
Life Sciences killer whale |
description |
This paper reviews genetic studies undertaken to generate an accurate phylogeny of killer whale (Orcinus orca) lineages. Three phylogenies, distinct in branching order and timing of divergences, are discussed. Of the three phylogenies, two are based on mitochondrial DNA and show more ancient divergence times for killer whale lineages. The third phylogeny, based on nuclear DNA, indicates that killer whales diversified more recently. The differing phylogenies have differing implications for biogeographic inference and for species assessments. The nuclear based phylogeny suggests that killer whale lineages diverged in sympatry while the mitochondrial based phylogenies as well as an empirical study indicate that the divergences more likely occurred in allopatry. The mitochondrial based phylogenies also support revision of killer whale taxonomy as there is indication that killer whales constitute multiple species and subspecies instead of a single species. The types of research that would be helpful in confirming hypotheses based on the phylogenies are discussed. |
format |
Article in Journal/Newspaper |
author |
Stokes, Arianna |
author_facet |
Stokes, Arianna |
author_sort |
Stokes, Arianna |
title |
Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale |
title_short |
Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale |
title_full |
Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale |
title_fullStr |
Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale |
title_full_unstemmed |
Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale |
title_sort |
genetic insights into the biogeography and evolutionary history of the killer whale |
publisher |
eScholarship, University of California |
publishDate |
2018 |
url |
http://www.escholarship.org/uc/item/7gc0d2hg |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_source |
Stokes, Arianna. (2018). Genetic Insights into the Biogeography and Evolutionary History of the Killer Whale. UC Davis: University Library, University of California, Davis. Retrieved from: http://www.escholarship.org/uc/item/7gc0d2hg |
op_relation |
qt7gc0d2hg http://www.escholarship.org/uc/item/7gc0d2hg |
op_rights |
public |
_version_ |
1766057068847955968 |