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Population genomics of Mesolithic Scandinavia: Investigating early postglacial migration routes and high-latitude adaptation
Stockholms universitet, Humanistiska fakulteten, Institutionen för arkeologi och antikens kultur.
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Rekke forfattare: 272018 (engelsk)Inngår i: PLoS biology, ISSN 1544-9173, E-ISSN 1545-7885, Vol. 16, nr 1, artikkel-id e2003703Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Scandinavia was one of the last geographic areas in Europe to become habitable for humans after the Last Glacial Maximum (LGM). However, the routes and genetic composition of these postglacial migrants remain unclear. We sequenced the genomes, up to 57x coverage, of seven hunter-gatherers excavated across Scandinavia and dated from 9,500-6,000 years before present (BP). Surprisingly, among the Scandinavian Mesolithic individuals, the genetic data display an east-west genetic gradient that opposes the pattern seen in other parts of Mesolithic Europe. Our results suggest two different early postglacial migrations into Scandinavia: initially from the south, and later, from the northeast. The latter followed the ice-free Norwegian north Atlantic coast, along which novel and advanced pressure-blade stone-tool techniques may have spread. These two groups met and mixed in Scandinavia, creating a genetically diverse population, which shows patterns of genetic adaptation to high latitude environments. These potential adaptations include high frequencies of low pigmentation variants and a gene region associated with physical performance, which shows strong continuity into modern-day northern Europeans.

sted, utgiver, år, opplag, sider
2018. Vol. 16, nr 1, artikkel-id e2003703
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-153894DOI: 10.1371/journal.pbio.2003703ISI: 000423830300009PubMedID: 29315301OAI: oai:DiVA.org:su-153894DiVA, id: diva2:1188361
Tilgjengelig fra: 2018-03-07 Laget: 2018-03-07 Sist oppdatert: 2018-08-03bibliografisk kontrollert

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Kılınç, Gülşah M.Krzewińska, MajaEriksson, GunillaLidén, KerstinStorå, JanGötherström, Anders
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