Killer whale genomes reveal a complex history of recurrent admixture and vicariance
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/45965 |
Resumo: | 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 four-fold 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. |
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Killer whale genomes reveal a complex history of recurrent admixture and vicarianceAllelesAnimalsAntarctic RegionsBase SequenceCell NucleusDNA, MitochondrialGenetic DriftGenetic VariationGeographyMarkov ChainsModels, GeneticPhylogenyPrincipal Component AnalysisWhale, KillerGene FlowGenomeReconstruction 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 four-fold 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.WileyRepositório da Universidade de LisboaFoote, Andrew D.Martin, Michael D.Louis, MariePacheco, GeorgeRobertson, Kelly M.Sinding, Mikkel‐Holger S.Amaral, Ana RitaBaird, Robin W.Baker, Charles ScottBallance, LisaBarlow, JayBrownlow, AndrewCollins, TimConstantine, RochelleDabin, WillyDalla Rosa, LucianoDavison, Nicholas J.Durban, John W.Esteban, RuthFerguson, Steven H.Gerrodette, TimGuinet, ChristopheHanson, M. BradleyHoggard, WayneMatthews, Cory J. D.Samarra, Filipa I. P.de Stephanis, RenaudTavares, Sara B.Tixier, PaulTotterdell, John A.Wade, PaulExcoffier, LaurentGilbert, M. Thomas P.Wolf, Jochen B. W.Morin, Phillip A.2021-01-27T18:43:23Z2019-08-042019-08-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/45965engFoote, A.D., Martin, M.D., Louis, M., Pacheco, G., Robertson, K.M., Sinding, M.S., Amaral, A.R., Baird, R., Baker, C.S., Ballance, L., Barlow, J., Brownlow ,A., Collins, T., Constantine, R., Dabin, W., Dalla Rosa, L., Nicholas, D.J., Durban, J.W., Esteban, R., Ferguson, S.H., Gerrodette, T., Guinet, C., Hanson, M.B., Hoggard, W., Matthews, C.J.D., Samarra, F.I.P., de Stephanis, R., Tavares, S.B., Tixier, P., Totterdell, J.A., Wade, P., Excoffier, L., Gilbert, M.T.P., Wolf, J.B.W. & Morin, P.A. (2019) Killer whale genomes reveal a complex history of recurrent admixture and vicariance. Molecular Ecology, 28(14), 3427-3444. DOI:10.1111/mec.1509910.1111/mec.15099info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:47:28Zoai:repositorio.ul.pt:10451/45965Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:57:57.619040Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
title |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance |
spellingShingle |
Killer whale genomes reveal a complex history of recurrent admixture and vicariance Foote, Andrew D. Alleles Animals Antarctic Regions Base Sequence Cell Nucleus DNA, Mitochondrial Genetic Drift Genetic Variation Geography Markov Chains Models, Genetic Phylogeny Principal Component Analysis Whale, Killer Gene Flow Genome |
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 |
author |
Foote, Andrew D. |
author_facet |
Foote, Andrew D. Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel‐Holger S. Amaral, Ana Rita 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_role |
author |
author2 |
Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel‐Holger S. Amaral, Ana Rita 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. |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Foote, Andrew D. Martin, Michael D. Louis, Marie Pacheco, George Robertson, Kelly M. Sinding, Mikkel‐Holger S. Amaral, Ana Rita 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. |
dc.subject.por.fl_str_mv |
Alleles Animals Antarctic Regions Base Sequence Cell Nucleus DNA, Mitochondrial Genetic Drift Genetic Variation Geography Markov Chains Models, Genetic Phylogeny Principal Component Analysis Whale, Killer Gene Flow Genome |
topic |
Alleles Animals Antarctic Regions Base Sequence Cell Nucleus DNA, Mitochondrial Genetic Drift Genetic Variation Geography Markov Chains Models, Genetic Phylogeny Principal Component Analysis Whale, Killer Gene Flow Genome |
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 four-fold 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. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-08-04 2019-08-04T00:00:00Z 2021-01-27T18:43:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/45965 |
url |
http://hdl.handle.net/10451/45965 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Foote, A.D., Martin, M.D., Louis, M., Pacheco, G., Robertson, K.M., Sinding, M.S., Amaral, A.R., Baird, R., Baker, C.S., Ballance, L., Barlow, J., Brownlow ,A., Collins, T., Constantine, R., Dabin, W., Dalla Rosa, L., Nicholas, D.J., Durban, J.W., Esteban, R., Ferguson, S.H., Gerrodette, T., Guinet, C., Hanson, M.B., Hoggard, W., Matthews, C.J.D., Samarra, F.I.P., de Stephanis, R., Tavares, S.B., Tixier, P., Totterdell, J.A., Wade, P., Excoffier, L., Gilbert, M.T.P., Wolf, J.B.W. & Morin, P.A. (2019) Killer whale genomes reveal a complex history of recurrent admixture and vicariance. Molecular Ecology, 28(14), 3427-3444. DOI:10.1111/mec.15099 10.1111/mec.15099 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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