Mitochondrial Variation and Biogeographic History of Chinook Salmon
Abstract The genetic variation of many species in the Northern Hemisphere has been influenced by climatic changes during the Pleistocene Epoch. Phylogeographic studies can help determine intraspecific relationships and postglacial recolonization routes for many of these species, potentially leading...
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crwiley:10.1577/t09-080.1 2024-05-19T07:43:18+00:00 Mitochondrial Variation and Biogeographic History of Chinook Salmon Martin, Kyle E. Steele, Craig A. Brunelli, Joseph P. Thorgaard, Gary H. 2010 http://dx.doi.org/10.1577/t09-080.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T09-080.1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 139, issue 3, page 792-802 ISSN 0002-8487 1548-8659 journal-article 2010 crwiley https://doi.org/10.1577/t09-080.1 2024-04-25T08:28:13Z Abstract The genetic variation of many species in the Northern Hemisphere has been influenced by climatic changes during the Pleistocene Epoch. Phylogeographic studies can help determine intraspecific relationships and postglacial recolonization routes for many of these species, potentially leading to a more complete understanding of how flora and fauna respond to dramatic climate change. We analyzed the variation in the mitochondrial DNA sequences of Chinook salmon Oncorhynchus tshawytscha from California to the Kamchatka Peninsula, Russia, to gain insight into the role of Pleistocene glaciation in the genetic structuring of this species. The geographic distribution of haplotypes revealed high levels of genetic diversity in the Columbia River drainage. Nested clade analysis suggests northward expansion from this area during the late Pleistocene, a hypothesis that is further supported by evidence of demographic growth and population expansion in the northern portion of the species' range. Estimates of the divergence time between two phylogenetic clades are correlated with interglacial periods of the Pleistocene. The data suggest the absence of Chinook salmon from the current northern part of its distribution until the late Pleistocene, when northward expansion from a southern refugium occurred (during an interglacial period), followed by the recent genetic divergence of these northern populations. Article in Journal/Newspaper Kamchatka Kamchatka Peninsula Wiley Online Library Transactions of the American Fisheries Society 139 3 792 802 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The genetic variation of many species in the Northern Hemisphere has been influenced by climatic changes during the Pleistocene Epoch. Phylogeographic studies can help determine intraspecific relationships and postglacial recolonization routes for many of these species, potentially leading to a more complete understanding of how flora and fauna respond to dramatic climate change. We analyzed the variation in the mitochondrial DNA sequences of Chinook salmon Oncorhynchus tshawytscha from California to the Kamchatka Peninsula, Russia, to gain insight into the role of Pleistocene glaciation in the genetic structuring of this species. The geographic distribution of haplotypes revealed high levels of genetic diversity in the Columbia River drainage. Nested clade analysis suggests northward expansion from this area during the late Pleistocene, a hypothesis that is further supported by evidence of demographic growth and population expansion in the northern portion of the species' range. Estimates of the divergence time between two phylogenetic clades are correlated with interglacial periods of the Pleistocene. The data suggest the absence of Chinook salmon from the current northern part of its distribution until the late Pleistocene, when northward expansion from a southern refugium occurred (during an interglacial period), followed by the recent genetic divergence of these northern populations. |
format |
Article in Journal/Newspaper |
author |
Martin, Kyle E. Steele, Craig A. Brunelli, Joseph P. Thorgaard, Gary H. |
spellingShingle |
Martin, Kyle E. Steele, Craig A. Brunelli, Joseph P. Thorgaard, Gary H. Mitochondrial Variation and Biogeographic History of Chinook Salmon |
author_facet |
Martin, Kyle E. Steele, Craig A. Brunelli, Joseph P. Thorgaard, Gary H. |
author_sort |
Martin, Kyle E. |
title |
Mitochondrial Variation and Biogeographic History of Chinook Salmon |
title_short |
Mitochondrial Variation and Biogeographic History of Chinook Salmon |
title_full |
Mitochondrial Variation and Biogeographic History of Chinook Salmon |
title_fullStr |
Mitochondrial Variation and Biogeographic History of Chinook Salmon |
title_full_unstemmed |
Mitochondrial Variation and Biogeographic History of Chinook Salmon |
title_sort |
mitochondrial variation and biogeographic history of chinook salmon |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1577/t09-080.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T09-080.1 |
genre |
Kamchatka Kamchatka Peninsula |
genre_facet |
Kamchatka Kamchatka Peninsula |
op_source |
Transactions of the American Fisheries Society volume 139, issue 3, page 792-802 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1577/t09-080.1 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
139 |
container_issue |
3 |
container_start_page |
792 |
op_container_end_page |
802 |
_version_ |
1799483025240621056 |