Journal article
Derived immune and ancestral pigmentation alleles in a 7,000-year-old Mesolithic European
Institut de Biologia Evolutiva1
The University of Chicago2
University of Queensland3
Harvard University4
Catalan Institution for Research and Advanced Studies5
University of Copenhagen6
University of California at San Diego7
University of California at Berkeley8
Department of Systems Biology, Technical University of Denmark9
Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark10
I.E.S.O. 'Los Salados'11
Junta de Castilla y León12
Radboud University Nijmegen13
...and 3 moreAncient genomic sequences have started to reveal the origin and the demographic impact of farmers from the Neolithic period spreading into Europe(1-3). The adoption of farming, stock breeding and sedentary societies during the Neolithic may have resulted in adaptive changes in genes associated with immunity and diet(4).
However, the limited data available from earlier hunter-gatherers preclude an understanding of the selective processes associated with this crucial transition to agriculture in recent human evolution. Here we sequence an approximately 7,000-year-old Mesolithic skeleton discovered at the La Brana-Arintero site in Leon, Spain, to retrieve a complete pre-agricultural European human genome.
Analysis of this genome in the context of other ancient samples suggests the existence of a common ancient genomic signature across western and central Eurasia from the Upper Paleolithic to the Mesolithic. The La Brana individual carries ancestral alleles in several skin pigmentation genes, suggesting that the light skin of modern Europeans was not yet ubiquitous in Mesolithic times.
Moreover, we provide evidence that a significant number of derived, putatively adaptive variants associated with pathogen resistance in modern Europeans were already present in this hunter-gatherer.
Language: | English |
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Publisher: | Nature Publishing Group UK |
Year: | 2014 |
Pages: | 225-228 |
Journal subtitle: | International Weekly Journal of Science |
ISSN: | 14764687 and 00280836 |
Types: | Journal article |
DOI: | 10.1038/nature12960 |
ORCIDs: | 0000-0002-7081-6748 and Rasmussen, Simon |