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Determinants of genetic variation across eco-evolutionary scales in pinnipeds

Peart, Claire R. (författare)
Uppsala universitet,Science for Life Laboratory, SciLifeLab,Evolutionsbiologi,Ludwig Maximilians Univ Munchen, Fac Biol, Div Evolutionary Biol, Planegg Martinsried, Germany.
Tusso, Sergio (författare)
Uppsala universitet,Evolutionsbiologi,Science for Life Laboratory, SciLifeLab,Ludwig Maximilians Univ Munchen, Fac Biol, Div Evolutionary Biol, Planegg Martinsried, Germany.
Pophaly, Saurabh D. (författare)
Ludwig Maximilians Univ Munchen, Fac Biol, Div Evolutionary Biol, Planegg Martinsried, Germany.;Max Planck Inst Plant Breeding Res, Cologne, Germany.
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Botero-Castro, Fidel (författare)
Ludwig Maximilians Univ Munchen, Fac Biol, Div Evolutionary Biol, Planegg Martinsried, Germany.
Wu, Chi-Chih (författare)
Uppsala universitet,Evolutionsbiologi,Science for Life Laboratory, SciLifeLab
Aurioles-Gamboa, David (författare)
Inst Politecn Nacl, Lab Ecol Pinnipedos Burney J Le Boeuf, Ctr Interdisciplinario Ciencias Marinas, La Paz, Baja Calif Sur, Mexico.
Baird, Amy B. (författare)
Univ Houston Downtown, Dept Nat Sci, Houston, TX USA.
Bickham, John W. (författare)
Texas A&M Univ, Dept Ecol & Conservat Biol, College Stn, TX USA.
Forcada, Jaume (författare)
British Antarctic Survey, Nat Environm Res Council, Cambridge, England.
Galimberti, Filippo (författare)
Elephant Seal Res Grp, Sea Lion Isl, Falkland Island.
Gemmell, Neil J. (författare)
Univ Otago, Dept Anat, Dunedin, New Zealand.
Hoffman, Joseph, I (författare)
British Antarctic Survey, Nat Environm Res Council, Cambridge, England.;Bielefeld Univ, Dept Anim Behav, Bielefeld, Germany.
Kovacs, Kit M. (författare)
Norwegian Polar Res Inst, Fram Ctr, Tromso, Norway.
Kunnasranta, Mervi (författare)
Univ Eastern Finland, Dept Environm & Biol Sci, Joensuu, Finland.;Nat Resources Inst Finland Luke, Joensuu, Finland.
Lydersen, Christian (författare)
Norwegian Polar Res Inst, Fram Ctr, Tromso, Norway.
Nyman, Tommi (författare)
Univ Eastern Finland, Dept Environm & Biol Sci, Joensuu, Finland.;Norwegian Inst Bioecon Res, Dept Ecosyst Barents Reg, Svanhovd Res Stn, Svanvik, Norway.
de Oliveira, Larissa Rosa (författare)
Univ Vale Rio dos Sinos, Lab Mammal Ecol, Sao Leopoldo, Brazil.
Orr, Anthony J. (författare)
NOAA, Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Marine Mammal Lab, Seattle, WA 98115 USA.
Sanvito, Simona (författare)
Elephant Seal Res Grp, Sea Lion Isl, Falkland Island.
Valtonen, Mia (författare)
Univ Helsinki, Inst Biotechnol, Saimaa Ringed Seal Genome Project, Helsinki, Finland.
Shafer, Aaron B. A. (författare)
Uppsala universitet,Science for Life Laboratory, SciLifeLab,Evolutionsbiologi,Trent Univ, Forens Sci & Environm Life Sci, Peterborough, ON, Canada.
Wolf, Jochen B. W. (författare)
Uppsala universitet,Evolutionsbiologi,Science for Life Laboratory, SciLifeLab,Ludwig Maximilians Univ Munchen, Fac Biol, Div Evolutionary Biol, Planegg Martinsried, Germany.
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 (creator_code:org_t)
2020-06-08
2020
Engelska.
Ingår i: Nature Ecology & Evolution. - : NATURE PUBLISHING GROUP. - 2397-334X. ; 4:8, s. 1095-1104
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • The effective size of a population (N-e), which determines its level of neutral variability, is a key evolutionary parameter. N-e can substantially depart from census sizes of present-day breeding populations (N-C) as a result of past demographic changes, variation in life-history traits and selection at linked sites. Using genome-wide data we estimated the long-term coalescent N-e for 17 pinniped species represented by 36 population samples (total n = 458 individuals). N-e estimates ranged from 8,936 to 91,178, were highly consistent within (sub)species and showed a strong positive correlation with N-C (R-adj(2) = 0.59; P = 0.0002). N-e/N-C ratios were low (mean, 0.31; median, 0.13) and co-varied strongly with demographic history and, to a lesser degree, with species' ecological and life-history variables such as breeding habitat. Residual variation in N-e/N-C, after controlling for past demographic fluctuations, contained information about recent population size changes during the Anthropocene. Specifically, species of conservation concern typically had positive residuals indicative of a smaller contemporary N-C than would be expected from their long-term N-e. This study highlights the value of comparative population genomic analyses for gauging the evolutionary processes governing genetic variation in natural populations, and provides a framework for identifying populations deserving closer conservation attention.

Ämnesord

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

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