Tracing the genetic origin of Europe's first farmers reveals insights into their social organization

Abstract

Farming was established in Central Europe by the Linearbandkeramik culture (LBK), a wellinvestigated archaeological horizon, which emerged in the Carpathian Basin, in today’s Hungary. However, the genetic background of the LBK genesis has not been revealed yet. Here we present 9 Y chromosomal and 84 mitochondrial DNA profiles from Mesolithic, Neolithic Starčevo and LBK sites (7th/6th millennium BC) from the Carpathian Basin and south-eastern Europe. We detect genetic continuity of both maternal and paternal elements during the initial spread of agriculture, and confirm the substantial genetic impact of early farming south-eastern European and Carpathian Basin cultures on Central European populations of the 6 th-4th millennium BC. Our comprehensive Y chromosomal and mitochondrial DNA population genetic analyses demonstrate a clear affinity of the early farmers to the modern Near East and Caucasus, tracing the expansion from that region through south-eastern Europe and the Carpathian Basin into Central Europe. Our results also reveal contrasting patterns for male and female genetic diversity in the European Neolithic, suggesting patrilineal descent system and patrilocal residential rules among the early farmers. Author Summary We report an exceptional large Neolithic DNA dataset from the Carpathian Basin, which was the cradle of the first Central European farming culture, the so called Linearbandkeramik culture. We generated 9 Y chromosomal and 84 mitochondrial DNA profiles from Mesolithic and Neolithic specimens from western Hungary and Croatia, attributed to the hunter-gatherers, Starčevo and LBK cultures (7th/6th millennium BC). We observe genetic discontinuity between Mesolithic foragers and early farmers, and genetic continuity between farming populations of 3 bioRxiv preprint doi: https://doi.org/10.1101/008664; this version posted September 3, 2014. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license. the 6th-4th millennium BC across a vast territory of southeastern and Central Europe. Nine novel Y chromosome DNA profiles offer first insights into the Y chromosome diversity of the earliest European farmers, and further support the migration (demic diffusion) from the Near East into Central Europe along the Continental route of Neolithisation. The joint analyses of the two uniparental genetic systems let us conclude that men and women had a similar roles in the Early Neolithic migration process but their dispersal patterns were determined by sex-specific rules. 4 bioRxiv preprint doi: https://doi.org/10.1101/008664; this version posted September 3, 2014. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.