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Population genomics of Mesolithic Scandinavia: Investigating early postglacial migration routes and high-latitude adaptation
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Human Evolution.ORCID iD: 0000-0001-9460-390x
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Human Evolution.ORCID iD: 0000-0002-6456-8055
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Human Evolution.ORCID iD: 0000-0002-4349-849x
Stockholm Univ, Dept Archaeol & Class Studies.
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2018 (English)In: PLoS biology, ISSN 1544-9173, E-ISSN 1545-7885, Vol. 16, no 1, article id e2003703Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2018. Vol. 16, no 1, article id e2003703
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Biological Sciences Archaeology
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URN: urn:nbn:se:uu:diva-346367DOI: 10.1371/journal.pbio.2003703ISI: 000423830300009PubMedID: 29315301OAI: oai:DiVA.org:uu-346367DiVA, id: diva2:1193104
Funder
EU, European Research CouncilThe Wenner-Gren FoundationKnut and Alice Wallenberg FoundationRiksbankens JubileumsfondSwedish Research Council, 421-2013-730; 2013-1905Swedish Research Council Formas, 2011-1138Available from: 2018-03-26 Created: 2018-03-26 Last updated: 2018-03-26Bibliographically approved

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Günther, TorstenMalmström, HelenaSvensson, EmmaSanchez-Quinto, FedericoKilinc, Gülsah MerveFraser, MagdalenaEdlund, HannaMunters, ArielleCoutinho, AlexandraSimões, Luciana G.Vicente, MárioSjölander, AndersGötherström, AndersJakobsson, Mattias

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Günther, TorstenMalmström, HelenaSvensson, EmmaSanchez-Quinto, FedericoKilinc, Gülsah MerveFraser, MagdalenaEdlund, HannaMunters, ArielleCoutinho, AlexandraSimões, Luciana G.Vicente, MárioSjölander, AndersGötherström, AndersJakobsson, Mattias
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Human EvolutionArchaeologyDepartment of Organismal BiologyScience for Life Laboratory, SciLifeLab
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