Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma
Three major mitochondrial DNA (mtDNA) haplogroups were identified in 5 data sets for North Pacific and Bering Sea walleye pollock. The common haplogroup A showed mirror-image clines on both sides of the North Pacific with high frequencies in southern areas ( P A > 0.84) and low frequencies in the...
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fthighwire:oai:open-archive.highwire.org:jhered:esl033v2 2023-05-15T13:14:44+02:00 Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma Grant, W. Stewart Spies, Ingrid B. Canino, Michael F. 2006-11-10 07:35:00.0 text/html http://jhered.oxfordjournals.org/cgi/content/short/esl033v2 https://doi.org/10.1093/jhered/esl033 en eng Oxford University Press http://jhered.oxfordjournals.org/cgi/content/short/esl033v2 http://dx.doi.org/10.1093/jhered/esl033 Copyright (C) 2006, American Genetic Association Article TEXT 2006 fthighwire https://doi.org/10.1093/jhered/esl033 2013-05-28T10:23:56Z Three major mitochondrial DNA (mtDNA) haplogroups were identified in 5 data sets for North Pacific and Bering Sea walleye pollock. The common haplogroup A showed mirror-image clines on both sides of the North Pacific with high frequencies in southern areas ( P A > 0.84) and low frequencies in the Bering Sea ( P A < 0.36). Two additional haplogroups showed complimentary, but weaker, clines in the opposite direction. These clines are unlikely to have arisen by chance during postglacial colonizations of coastal waters in the North Pacific and Bering Sea, and they do not appear to reflect isolation by distance. Contrary to these trends, pollock at the western end of the Aleutian Island Archipelago were genetically more similar to Asian than to North American pollock, a pattern likely reflecting postglacial colonization. Haplogroup F ST values for a given haplotype diversity were significantly larger than expected under the island model of migration and random drift, a result implicating natural selection. Frequencies of haplogroup A were highly correlated with sea surface temperature ( r > 0.91), whereas frequencies of groups B and C showed negative correlations with temperature. Selection may be operating directly on mtDNA variability or may be mediated through cytonuclear interactions. This biogeographic evidence adds to a growing body of literature indicating that selection may play a greater role in sculpting mtDNA variability than previously thought. Text Aleutian Island Bering Sea Theragra chalcogramma HighWire Press (Stanford University) Bering Sea Pacific Journal of Heredity 97 6 571 580 |
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HighWire Press (Stanford University) |
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English |
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Article Grant, W. Stewart Spies, Ingrid B. Canino, Michael F. Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma |
topic_facet |
Article |
description |
Three major mitochondrial DNA (mtDNA) haplogroups were identified in 5 data sets for North Pacific and Bering Sea walleye pollock. The common haplogroup A showed mirror-image clines on both sides of the North Pacific with high frequencies in southern areas ( P A > 0.84) and low frequencies in the Bering Sea ( P A < 0.36). Two additional haplogroups showed complimentary, but weaker, clines in the opposite direction. These clines are unlikely to have arisen by chance during postglacial colonizations of coastal waters in the North Pacific and Bering Sea, and they do not appear to reflect isolation by distance. Contrary to these trends, pollock at the western end of the Aleutian Island Archipelago were genetically more similar to Asian than to North American pollock, a pattern likely reflecting postglacial colonization. Haplogroup F ST values for a given haplotype diversity were significantly larger than expected under the island model of migration and random drift, a result implicating natural selection. Frequencies of haplogroup A were highly correlated with sea surface temperature ( r > 0.91), whereas frequencies of groups B and C showed negative correlations with temperature. Selection may be operating directly on mtDNA variability or may be mediated through cytonuclear interactions. This biogeographic evidence adds to a growing body of literature indicating that selection may play a greater role in sculpting mtDNA variability than previously thought. |
format |
Text |
author |
Grant, W. Stewart Spies, Ingrid B. Canino, Michael F. |
author_facet |
Grant, W. Stewart Spies, Ingrid B. Canino, Michael F. |
author_sort |
Grant, W. Stewart |
title |
Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma |
title_short |
Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma |
title_full |
Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma |
title_fullStr |
Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma |
title_full_unstemmed |
Biogeographic Evidence for Selection on Mitochondrial DNA in North Pacific Walleye Pollock Theragra chalcogramma |
title_sort |
biogeographic evidence for selection on mitochondrial dna in north pacific walleye pollock theragra chalcogramma |
publisher |
Oxford University Press |
publishDate |
2006 |
url |
http://jhered.oxfordjournals.org/cgi/content/short/esl033v2 https://doi.org/10.1093/jhered/esl033 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Aleutian Island Bering Sea Theragra chalcogramma |
genre_facet |
Aleutian Island Bering Sea Theragra chalcogramma |
op_relation |
http://jhered.oxfordjournals.org/cgi/content/short/esl033v2 http://dx.doi.org/10.1093/jhered/esl033 |
op_rights |
Copyright (C) 2006, American Genetic Association |
op_doi |
https://doi.org/10.1093/jhered/esl033 |
container_title |
Journal of Heredity |
container_volume |
97 |
container_issue |
6 |
container_start_page |
571 |
op_container_end_page |
580 |
_version_ |
1766265207281156096 |