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Adaptation to the H...
Adaptation to the High-Arctic island environment despite long-term reduced genetic variation in Svalbard reindeer
- Article/chapterEnglish2023
Publisher, publication year, extent ...
Numbers
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LIBRIS-ID:oai:DiVA.org:su-223458
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-223458URI
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https://doi.org/10.1016/j.isci.2023.107811DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-5334URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Typically much smaller in number than their mainland counterparts, island populations are ideal systems to investigate genetic threats to small populations. The Svalbard reindeer (Rangifer tarandus platyrhynchus) is an endemic subspecies that colonized the Svalbard archipelago ca. 6,000–8,000 years ago and now shows numerous physiological and morphological adaptations to its arctic habitat. Here, we report a de-novo chromosome-level assembly for Svalbard reindeer and analyze 133 reindeer genomes spanning Svalbard and most of the species’ Holarctic range, to examine the genomic consequences of long-term isolation and small population size in this insular subspecies. Empirical data, demographic reconstructions, and forward simulations show that long-term isolation and high inbreeding levels may have facilitated the reduction of highly deleterious—and to a lesser extent, moderately deleterious—variation. Our study indicates that long-term reduced genetic diversity did not preclude local adaptation to the High Arctic, suggesting that even severely bottlenecked populations can retain evolutionary potential.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Tørresen, Ole K.
(author)
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van der Valk, TomNaturhistoriska riksmuseet,Enheten för bioinformatik och genetik(Swepub:nrm)tomvande
(author)
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Le Moullec, Mathilde
(author)
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Veiberg, Vebjørn
(author)
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Tooming-Klunderud, Ave
(author)
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Skage, Morten
(author)
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Garmann-Aarhus, Benedicte
(author)
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Wood, Jonathan
(author)
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Rasmussen, Jacob A.
(author)
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Pedersen, Åshild Ø.
(author)
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Martin, Sarah L. F.
(author)
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Røed, Knut H.
(author)
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Jakobsen, Kjetill S.
(author)
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Dalén, Love,1980-Stockholms universitet,Zoologiska institutionen,Centre for PalaeoGenetics, Sweden; Swedish Museum of Natural History, Sweden(Swepub:su)dalen
(author)
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Hansen, Brage B.
(author)
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Martin, Michael D.
(author)
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Naturhistoriska riksmuseetEnheten för bioinformatik och genetik
(creator_code:org_t)
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In:iScience26:102589-0042
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Dussex, Nicolas
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Tørresen, Ole K.
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van der Valk, To ...
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Le Moullec, Math ...
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Veiberg, Vebjørn
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Tooming-Klunderu ...
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Skage, Morten
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Garmann-Aarhus, ...
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Wood, Jonathan
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Rasmussen, Jacob ...
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Pedersen, Åshild ...
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Martin, Sarah L. ...
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Røed, Knut H.
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Jakobsen, Kjetil ...
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Dalén, Love, 198 ...
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Hansen, Brage B.
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Martin, Michael ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Genetics
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iScience
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Stockholm University
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Swedish Museum of Natural History