A new version of Mathieson et al. 2017 has just been posted at BioRxiv [LINK]. It includes more samples. One of these new samples is a male from an Eneolithic Sredny Stog culture site on the Pontic (Ukrainian) steppe who belongs to Y-haplogroup R1a-M417 (ID I6561 from Alexandria in the ADMIXTURE bar graph below). This is huge, obviously with major implications for the peopling of large parts of Eurasia. Why? Because of this. Here’s the new abstract:
Abstract: Farming was first introduced to southeastern Europe in the mid-7th millennium BCE – brought by migrants from Anatolia who settled in the region before spreading throughout Europe. To clarify the dynamics of the interaction between the first farmers and indigenous hunter-gatherers where they first met, we analyze genome-wide ancient DNA data from 223 individuals who lived in southeastern Europe and surrounding regions between 12,000 and 500 BCE. We document previously uncharacterized genetic structure, showing a West-East cline of ancestry in hunter-gatherers, and show that some Aegean farmers had ancestry from a different lineage than the northwestern Anatolian lineage that formed the overwhelming ancestry of other European farmers. We show that the first farmers of northern and western Europe passed through southeastern Europe with limited admixture with local hunter-gatherers, but that some groups mixed extensively, with relatively sex-balanced admixture compared to the male-biased hunter-gatherer admixture that prevailed later in the North and West. Southeastern Europe continued to be a nexus between East and West after farming arrived, with intermittent genetic contact from the Steppe up to 2000 years before the migration that replaced much of northern Europe’s population.
Mathieson et al., The Genomic History Of Southeastern Europe, bioRxiv, Posted September 19, 2017, doi: https://doi.org/10.1101/135616 By the way, I don’t want to toot my own horn too much, but looking back, some of my comments in the discussion about the first version of Mathieson et al. 2017 were awesome. See here and here.
Three new Yamnaya, all from Ukraine, but sadly all females. Expected the Mesolithic/Neolithic R1a/R1b in Ukraine, and it would’ve been good to see some Yamnaya males from there, because some are likely to be R1a-M417. But it’s nice to see that Bulgarian MLBA R1a/U5a sample. Interesting date for R1a to be in the Balkans: 1750-1625 calBCE (3400±30 BP). … It can’t be a coincide that all of their Yamnaya samples from Ukraine are females. I reckon they’re holding the males back for their South Asian paper. I’m surprised they let the Bulgarian MLBA R1a out of the bag, because that’s a big clue about what we’ll see in BA Ukraine.
See also… Ancient herders from the Pontic-Caspian steppe crashed into India: no ifs or buts Source via Eurogenes Blog
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