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Genomic Diversity and Admixture Differs for Stone-Age Scandinavian Foragers and Farmers

Artikel i vetenskaplig tidskrift
Författare Pontus Skoglund
Helena Malmström
Ayca Omrak
Maanasa Raghavan
Cristina Valdiosera
Torsten Gunther
Per Hall
Kristiina Tambets
Juri Parik
Karl-Göran Sjögren
Jan Apel
Eske Willerslev
Jan Storå
Anders Götherström
Mattias Jakobsson
Publicerad i Science
Volym 344
Nummer/häfte 6185
Sidor 747-750
ISSN 0036-8075
Publiceringsår 2014
Publicerad vid Institutionen för historiska studier
Sidor 747-750
Språk en
Länkar dx.doi.org/10.1126/science.1253448
Ämneskategorier Molekylärbiologi, Arkeologi, nordeuropeisk, Historisk osteologi

Sammanfattning

Prehistoric population structure associated with the transition to an agricultural lifestyle in Europe remains a contentious idea. Population-genomic data from 11 Scandinavian Stone Age human remains suggest that hunter-gatherers had lower genetic diversity than that of farmers. Despite their close geographical proximity, the genetic differentiation between the two Stone Age groups was greater than that observed among extant European populations. Additionally, the Scandinavian Neolithic farmers exhibited a greater degree of hunter-gatherer–related admixture than that of the Tyrolean Iceman, who also originated from a farming context. In contrast, Scandinavian hunter-gatherers displayed no significant evidence of introgression from farmers. Our findings suggest that Stone Age foraging groups were historically in low numbers, likely owing to oscillating living conditions or restricted carrying capacity, and that they were partially incorporated into expanding farming groups.

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