Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic
Abstract Mitochondrial DNA (mtDNA) sequences were analyzed from 106 bowhead whale ( Balaena mysticetus ) specimens dating 471 ± 44 14 C b.p. –10,290 ± 150 14 C b.p. to evaluate whether historical changes in distribution and connectivity were detectable in levels of diversity and population structuri...
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crwiley:10.1111/j.1748-7692.2011.00551.x 2024-05-19T07:35:46+00:00 Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic McLeod, Brenna A. Frasier, Timothy R. Dyke, Arthur S. Savelle, James M. White, Bradley N. 2012 http://dx.doi.org/10.1111/j.1748-7692.2011.00551.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2011.00551.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2011.00551.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 28, issue 4 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2012 crwiley https://doi.org/10.1111/j.1748-7692.2011.00551.x 2024-04-22T07:35:40Z Abstract Mitochondrial DNA (mtDNA) sequences were analyzed from 106 bowhead whale ( Balaena mysticetus ) specimens dating 471 ± 44 14 C b.p. –10,290 ± 150 14 C b.p. to evaluate whether historical changes in distribution and connectivity were detectable in levels of diversity and population structuring in the Central Canadian Arctic. The species has maintained levels of mtDNA diversity over 10,000 yr comparable to other nonbottlenecked large whale species. When compared to data from the Holocene East Greenland/Spitsbergen and contemporary Bering‐Chuckchi‐Beaufort populations, differentiation was low ( F ST ≤ 0.005, Φ ST ≤ 0.003) and no temporal or geographical genetic structuring was evident. A combination of analyses suggests that the population has expanded over the past 30,000 14 C yr. This genetic signature of expansion could result from population growth, admixture of multiple gene pools, or a combination of both scenarios. Despite known climatic change that altered bowhead distribution and led to isolation of populations, there is no detectable population structuring or change in genetic diversity during the Holocene. This may be due to long generation time, occasional population connectivity and a historically large global population. These characteristics warrant caution when interpreting contemporary bowhead whale DNA data, as it is unlikely that any population will be in mutation‐drift equilibrium. Article in Journal/Newspaper Arctic Balaena mysticetus bowhead whale East Greenland Greenland Spitsbergen Wiley Online Library Marine Mammal Science 28 4 E426 E443 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics McLeod, Brenna A. Frasier, Timothy R. Dyke, Arthur S. Savelle, James M. White, Bradley N. Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Mitochondrial DNA (mtDNA) sequences were analyzed from 106 bowhead whale ( Balaena mysticetus ) specimens dating 471 ± 44 14 C b.p. –10,290 ± 150 14 C b.p. to evaluate whether historical changes in distribution and connectivity were detectable in levels of diversity and population structuring in the Central Canadian Arctic. The species has maintained levels of mtDNA diversity over 10,000 yr comparable to other nonbottlenecked large whale species. When compared to data from the Holocene East Greenland/Spitsbergen and contemporary Bering‐Chuckchi‐Beaufort populations, differentiation was low ( F ST ≤ 0.005, Φ ST ≤ 0.003) and no temporal or geographical genetic structuring was evident. A combination of analyses suggests that the population has expanded over the past 30,000 14 C yr. This genetic signature of expansion could result from population growth, admixture of multiple gene pools, or a combination of both scenarios. Despite known climatic change that altered bowhead distribution and led to isolation of populations, there is no detectable population structuring or change in genetic diversity during the Holocene. This may be due to long generation time, occasional population connectivity and a historically large global population. These characteristics warrant caution when interpreting contemporary bowhead whale DNA data, as it is unlikely that any population will be in mutation‐drift equilibrium. |
format |
Article in Journal/Newspaper |
author |
McLeod, Brenna A. Frasier, Timothy R. Dyke, Arthur S. Savelle, James M. White, Bradley N. |
author_facet |
McLeod, Brenna A. Frasier, Timothy R. Dyke, Arthur S. Savelle, James M. White, Bradley N. |
author_sort |
McLeod, Brenna A. |
title |
Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic |
title_short |
Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic |
title_full |
Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic |
title_fullStr |
Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic |
title_full_unstemmed |
Examination of ten thousand years of mitochondrial DNA diversity and population demographics in bowhead whales ( Balaena mysticetus) of the Central Canadian Arctic |
title_sort |
examination of ten thousand years of mitochondrial dna diversity and population demographics in bowhead whales ( balaena mysticetus) of the central canadian arctic |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2011.00551.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2011.00551.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2011.00551.x |
genre |
Arctic Balaena mysticetus bowhead whale East Greenland Greenland Spitsbergen |
genre_facet |
Arctic Balaena mysticetus bowhead whale East Greenland Greenland Spitsbergen |
op_source |
Marine Mammal Science volume 28, issue 4 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2011.00551.x |
container_title |
Marine Mammal Science |
container_volume |
28 |
container_issue |
4 |
container_start_page |
E426 |
op_container_end_page |
E443 |
_version_ |
1799474785027096576 |