Killer whale genomes reveal a complex history of recurrent admixture and vicariance
Reconstruction of the demographic and evolutionary history of populations assuming a consensus tree‐like relationship can mask more complex scenarios, which are prevalent in nature. An emerging genomic toolset, which has been most comprehensively harnessed in the reconstruction of human evolutionary...
Published in: | Molecular Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley-Blackwell
2019
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Online Access: | https://boris.unibe.ch/133897/1/Foote_et_al-2019-Molecular_Ecology.pdf https://boris.unibe.ch/133897/ |
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ftunivbern:oai:boris.unibe.ch:133897 2023-08-20T04:00:43+02:00 Killer whale genomes reveal a complex history of recurrent admixture and vicariance Foote, Andrew D. Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel-Holger S. Amaral, Ana R. Baird, Robin W. Baker, Charles Scott Ballance, Lisa Barlow, Jay Brownlow, Andrew Collins, Tim Constantine, Rochelle Dabin, Willy Dalla Rosa, Luciano Davison, Nicholas J. Durban, John W. Esteban, Ruth Ferguson, Steven H. Gerrodette, Tim Guinet, Christophe Hanson, M. Bradley Hoggard, Wayne Matthews, Cory J. D. Samarra, Filipa I. P. de Stephanis, Renaud Tavares, Sara B. Tixier, Paul Totterdell, John A. Wade, Paul Excoffier, Laurent Gilbert, M. Thomas P. Wolf, Jochen B. W. Morin, Phillip A. 2019-04-08 application/pdf https://boris.unibe.ch/133897/1/Foote_et_al-2019-Molecular_Ecology.pdf https://boris.unibe.ch/133897/ eng eng Wiley-Blackwell https://boris.unibe.ch/133897/ info:eu-repo/semantics/restrictedAccess Foote, Andrew D.; Martin, Michael D.; Louis, Marie; Pacheco, George; Robertson, Kelly M.; Sinding, Mikkel-Holger S.; Amaral, Ana R.; Baird, Robin W.; Baker, Charles Scott; Ballance, Lisa; Barlow, Jay; Brownlow, Andrew; Collins, Tim; Constantine, Rochelle; Dabin, Willy; Dalla Rosa, Luciano; Davison, Nicholas J.; Durban, John W.; Esteban, Ruth; Ferguson, Steven H.; . (2019). Killer whale genomes reveal a complex history of recurrent admixture and vicariance. Molecular Ecology, 28(14), pp. 3427-3444. Wiley-Blackwell 10.1111/mec.15099 <http://dx.doi.org/10.1111/mec.15099> 570 Life sciences biology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2019 ftunivbern https://doi.org/10.1111/mec.15099 2023-07-31T21:54:13Z Reconstruction of the demographic and evolutionary history of populations assuming a consensus tree‐like relationship can mask more complex scenarios, which are prevalent in nature. An emerging genomic toolset, which has been most comprehensively harnessed in the reconstruction of human evolutionary history, enables molecular ecologists to elucidate complex population histories. Killer whales have limited extrinsic barriers to dispersal and have radiated globally, and are therefore a good candidate model for the application of such tools. Here, we analyse a global data set of killer whale genomes in a rare attempt to elucidate global population structure in a nonhuman species. We identify a pattern of genetic homogenisation at lower latitudes and the greatest differentiation at high latitudes, even between currently sympatric lineages. The processes underlying the major axis of structure include high drift at the edge of species' range, likely associated with founder effects and allelic surfing during postglacial range expansion. Divergence between Antarctic and non‐Antarctic lineages is further driven by ancestry segments with up to fourfold older coalescence time than the genome‐wide average; relicts of a previous vicariance during an earlier glacial cycle. Our study further underpins that episodic gene flow is ubiquitous in natural populations, and can occur across great distances and after substantial periods of isolation between populations. Thus, understanding the evolutionary history of a species requires comprehensive geographic sampling and genome‐wide data to sample the variation in ancestry within individuals. Article in Journal/Newspaper Antarc* Antarctic Killer Whale Killer whale BORIS (Bern Open Repository and Information System, University of Bern) Antarctic Molecular Ecology |
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Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
570 Life sciences biology |
spellingShingle |
570 Life sciences biology Foote, Andrew D. Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel-Holger S. Amaral, Ana R. Baird, Robin W. Baker, Charles Scott Ballance, Lisa Barlow, Jay Brownlow, Andrew Collins, Tim Constantine, Rochelle Dabin, Willy Dalla Rosa, Luciano Davison, Nicholas J. Durban, John W. Esteban, Ruth Ferguson, Steven H. Gerrodette, Tim Guinet, Christophe Hanson, M. Bradley Hoggard, Wayne Matthews, Cory J. D. Samarra, Filipa I. P. de Stephanis, Renaud Tavares, Sara B. Tixier, Paul Totterdell, John A. Wade, Paul Excoffier, Laurent Gilbert, M. Thomas P. Wolf, Jochen B. W. Morin, Phillip A. Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
topic_facet |
570 Life sciences biology |
description |
Reconstruction of the demographic and evolutionary history of populations assuming a consensus tree‐like relationship can mask more complex scenarios, which are prevalent in nature. An emerging genomic toolset, which has been most comprehensively harnessed in the reconstruction of human evolutionary history, enables molecular ecologists to elucidate complex population histories. Killer whales have limited extrinsic barriers to dispersal and have radiated globally, and are therefore a good candidate model for the application of such tools. Here, we analyse a global data set of killer whale genomes in a rare attempt to elucidate global population structure in a nonhuman species. We identify a pattern of genetic homogenisation at lower latitudes and the greatest differentiation at high latitudes, even between currently sympatric lineages. The processes underlying the major axis of structure include high drift at the edge of species' range, likely associated with founder effects and allelic surfing during postglacial range expansion. Divergence between Antarctic and non‐Antarctic lineages is further driven by ancestry segments with up to fourfold older coalescence time than the genome‐wide average; relicts of a previous vicariance during an earlier glacial cycle. Our study further underpins that episodic gene flow is ubiquitous in natural populations, and can occur across great distances and after substantial periods of isolation between populations. Thus, understanding the evolutionary history of a species requires comprehensive geographic sampling and genome‐wide data to sample the variation in ancestry within individuals. |
format |
Article in Journal/Newspaper |
author |
Foote, Andrew D. Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel-Holger S. Amaral, Ana R. Baird, Robin W. Baker, Charles Scott Ballance, Lisa Barlow, Jay Brownlow, Andrew Collins, Tim Constantine, Rochelle Dabin, Willy Dalla Rosa, Luciano Davison, Nicholas J. Durban, John W. Esteban, Ruth Ferguson, Steven H. Gerrodette, Tim Guinet, Christophe Hanson, M. Bradley Hoggard, Wayne Matthews, Cory J. D. Samarra, Filipa I. P. de Stephanis, Renaud Tavares, Sara B. Tixier, Paul Totterdell, John A. Wade, Paul Excoffier, Laurent Gilbert, M. Thomas P. Wolf, Jochen B. W. Morin, Phillip A. |
author_facet |
Foote, Andrew D. Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel-Holger S. Amaral, Ana R. Baird, Robin W. Baker, Charles Scott Ballance, Lisa Barlow, Jay Brownlow, Andrew Collins, Tim Constantine, Rochelle Dabin, Willy Dalla Rosa, Luciano Davison, Nicholas J. Durban, John W. Esteban, Ruth Ferguson, Steven H. Gerrodette, Tim Guinet, Christophe Hanson, M. Bradley Hoggard, Wayne Matthews, Cory J. D. Samarra, Filipa I. P. de Stephanis, Renaud Tavares, Sara B. Tixier, Paul Totterdell, John A. Wade, Paul Excoffier, Laurent Gilbert, M. Thomas P. Wolf, Jochen B. W. Morin, Phillip A. |
author_sort |
Foote, Andrew D. |
title |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
title_short |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
title_full |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
title_fullStr |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
title_full_unstemmed |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
title_sort |
killer whale genomes reveal a complex history of recurrent admixture and vicariance |
publisher |
Wiley-Blackwell |
publishDate |
2019 |
url |
https://boris.unibe.ch/133897/1/Foote_et_al-2019-Molecular_Ecology.pdf https://boris.unibe.ch/133897/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Killer Whale Killer whale |
genre_facet |
Antarc* Antarctic Killer Whale Killer whale |
op_source |
Foote, Andrew D.; Martin, Michael D.; Louis, Marie; Pacheco, George; Robertson, Kelly M.; Sinding, Mikkel-Holger S.; Amaral, Ana R.; Baird, Robin W.; Baker, Charles Scott; Ballance, Lisa; Barlow, Jay; Brownlow, Andrew; Collins, Tim; Constantine, Rochelle; Dabin, Willy; Dalla Rosa, Luciano; Davison, Nicholas J.; Durban, John W.; Esteban, Ruth; Ferguson, Steven H.; . (2019). Killer whale genomes reveal a complex history of recurrent admixture and vicariance. Molecular Ecology, 28(14), pp. 3427-3444. Wiley-Blackwell 10.1111/mec.15099 <http://dx.doi.org/10.1111/mec.15099> |
op_relation |
https://boris.unibe.ch/133897/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/mec.15099 |
container_title |
Molecular Ecology |
_version_ |
1774719951138979840 |