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Killer whale genomes reveal a complex history of recurrent admixture and vicariance

Foote, Andrew D. (författare)
Univ Bern, Inst Ecol & Evolut, CMPG, Baltzerstr 6, CH-3012 Bern, Switzerland
Martin, Michael D. (författare)
NTNU Univ Museum, Trondheim, Norway
Louis, Marie (författare)
Univ Copenhagen, Dept Biol, Sect Evolutionary Genom, Copenhagen, Denmark;Univ St Andrews, East Sands, Scottish Oceans Inst, St Andrews, Fife, Scotland
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Pacheco, George (författare)
Univ Copenhagen, Dept Biol, Sect Evolutionary Genom, Copenhagen, Denmark
Robertson, Kelly M. (författare)
NOAA, Marine Mammal & Turtle Div, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA
Sinding, Mikkel-Holger S. (författare)
Univ Copenhagen, Dept Biol, Sect Evolutionary Genom, Copenhagen, Denmark;Greenland Inst Nat Resources, Nuuk, Greenland
Amaral, Ana R. (författare)
Amer Museum Nat Hist, New York, NY 10024 USA;Univ Lisbon, Fac Ciencias, Ctr Ecol Evolut & Environm Changes, Lisbon, Portugal
Baird, Robin W. (författare)
Cascadia Res, Olympia, WA USA
Baker, Charles Scott (författare)
Oregon State Univ, Marine Mammal Inst, Dept Fisheries & Wildlife, Newport, OR USA;Univ Auckland, Sch Biol Sci, Auckland, New Zealand
Ballance, Lisa (författare)
NOAA, Marine Mammal & Turtle Div, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA
Barlow, Jay (författare)
NOAA, Marine Mammal & Turtle Div, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA
Brownlow, Andrew (författare)
SRUC Vet Serv Drummondhill, Scottish Marine Anim Stranding Scheme, Inverness, Scotland
Collins, Tim (författare)
Wildlife Conservat Soc, Ocean Giants Program, New York, NY USA
Constantine, Rochelle (författare)
Univ Auckland, Sch Biol Sci, Auckland, New Zealand
Dabin, Willy (författare)
Univ La Rochelle, CNRS, Observ Pelagis, La Rochelle, France
Dalla Rosa, Luciano (författare)
Univ Fed Rio Grande, Inst Oceanog, Lab Ecol & Conservacao Megafauna Marinha, Rio Grande, Brazil
Davison, Nicholas J. (författare)
SRUC Vet Serv Drummondhill, Scottish Marine Anim Stranding Scheme, Inverness, Scotland
Durban, John W. (författare)
NOAA, Marine Mammal & Turtle Div, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA
Esteban, Ruth (författare)
CIRCE Conservat Informat & Res Cetaceans, Algeciras, Spain
Ferguson, Steven H. (författare)
Fisheries & Oceans Canada, Winnipeg, MB, Canada
Gerrodette, Tim (författare)
NOAA, Marine Mammal & Turtle Div, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA
Guinet, Christophe (författare)
CNRS ULR, CEBC, UMR, Chize, France
Hanson, M. Bradley (författare)
NOAA, Natl Marine Fisheries Serv, Northwest Fisheries Sci Ctr, Seattle, WA 98115 USA
Hoggard, Wayne (författare)
NOAA, Natl Marine Fisheries Serv, Southeast Fisheries Sci Ctr, Pascagoula, MS USA
Matthews, Cory J. D. (författare)
Fisheries & Oceans Canada, Winnipeg, MB, Canada
Samarra, Filipa I. P. (författare)
Marine & Freshwater Res Inst, Reykjavik, Iceland
de Stephanis, Renaud (författare)
CIRCE Conservat Informat & Res Cetaceans, Algeciras, Spain
Tavares, Sara B. (författare)
Univ St Andrews, East Sands, Scottish Oceans Inst, St Andrews, Fife, Scotland
Tixier, Paul (författare)
CNRS ULR, CEBC, UMR, Chize, France;Deakin Univ, Sch Life & Environm Sci, Burwood Campus, Geelong, Vic, Australia
Totterdell, John A. (författare)
Marine Informat & Res Grp Australia MIRG, Quinns Rocks, WA, Australia
Wade, Paul (författare)
NOAA, Natl Marine Mammal Lab, Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Washington, DC USA
Excoffier, Laurent (författare)
Univ Bern, Inst Ecol & Evolut, CMPG, Baltzerstr 6, CH-3012 Bern, Switzerland
Gilbert, M. Thomas P. (författare)
NTNU Univ Museum, Trondheim, Norway;Univ Copenhagen, Dept Biol, Sect Evolutionary Genom, Copenhagen, Denmark
Wolf, Jochen B. W. (författare)
Uppsala universitet,Science for Life Laboratory, SciLifeLab,Ludwig Maximilians Univ Munchen, Fac Biol, Div Evolutionary Biol, Planegg Martinsried, Germany
Morin, Phillip A. (författare)
NOAA, Marine Mammal & Turtle Div, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA
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 (creator_code:org_t)
2019-05-27
2019
Engelska.
Ingår i: Molecular Ecology. - : WILEY. - 0962-1083 .- 1365-294X. ; 28:14, s. 3427-3444
Relaterad länk:
https://www.biorxiv....
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https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • 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.

Ämnesord

NATURVETENSKAP  -- Biologi -- Evolutionsbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Evolutionary Biology (hsv//eng)

Nyckelord

admixture
drift
genomics
population structure
secondary contact

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

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