West Yamnaya settlers like Early Bell Beakers: R1b-P310 and R1b-Z2103

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Informal report by Bulgarian archaeologist Svetoslav Stamov in 7/8 TV, from data collected by the Reich Lab for their future paper on South-Eastern Europe.

As can be seen from the TV captions below, this is the earliest R1b-P310 from Yamnaya or Yamnaya-related individuals in Early Bronze Age contexts from Bulgaria. In fact, its appearance together with a R1b-Z2103 lineage (and another undefined R1b-M269) shows once again that the earliest R1b-L23 bottlenecks were associated with Proto-Indo-Europeans.

Lacking a precise periodization, location, or proper cultural context in the spreadsheet, it is impossible to know whether they belong to Khvalynsk-related cultures … Read the rest “West Yamnaya settlers like Early Bell Beakers: R1b-P310 and R1b-Z2103”

Tug of war between Balto-Slavic and West Uralic (II)

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It is firmly established since (at least) the 1980s that Balto-Slavic, Baltic and Slavic show a strong Uralic substrate, even though many details are still the subject of ongoing controversies. Here is how the Baltic linguistic area was described in Thomason’s Language Contact (2001):

Overall, the Baltic area has the same characteristics as the Balkan area: areal linguistic features are distributed differentially among the languages, and the features themselves vary in details of their structure. As for the sources of the Baltic features, some can be traced to Uralic and some to Indo-European, especially Germanic. The Indo-European languages most

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RISE1.SG, R1b from Poland CWC, a likely mislabelled Balto-Slav

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When I started ruminating in 2016 over the apparent differences between populations that kept the two-velar distinction of Indo-Tocharian, and the only two unrelated dialectal groups that showed a strong satemization trend, I believed that – much like in modern times – there would be no clear-cut division in terms of ancestry or Y-DNA haplogroups between neighbouring forest-steppe and steppe populations.

The answer to the question of interacting ethnolinguistic groups had to lie, as everything else, on the investigation of fine-scale population movements that must have put Uralic-speaking peoples as the main substratum of Balto-Slavic and Indo-Iranian.

Still, … Read the rest “RISE1.SG, R1b from Poland CWC, a likely mislabelled Balto-Slav”

Survival of hunter-gatherer ancestry in West-Central European Neolithic

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Recent papers on France and neighbouring regions, Ancient genome-wide DNA from France highlights the complexity of interactions between Mesolithic hunter-gatherers and Neolithic farmers, by Rivollat et al. Science Advances (2020) 6(22), and Ancient genomes from present-day France unveil 7,000 years of its demographic history, by Brunel et al. PNAS (2020).

Interesting excerpts (emphasis mine):

I. Survival of HG ancestry in Central Europe

From Rivollat et al. (2020):

Here, we present newly typed genome-wide data from 101 individuals from 12 sites from modern-day France and Germany (3 Late Mesolithic and 98 Neolithic, 7000–3000 cal BCE (…)

We explored

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Maros shows Yamnaya-derived East BBC ancestry and local admixture

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New preprint Kinship, acquired and inherited status, and population structure at the Early Bronze Age Mokrin necropolis in northern Serbia, by Zegarac et al. bioRxiv (2020).

Intersesting excerpts about this 2100-1800 BC cemetery (emphasis mine):

Ancestry

The individual Mokrin genomes are best modelled as a mixture of Central European hunter-gatherers, Aegean Neolithic farmers and influences from the Eastern European steppes (mean qpAdm tail probability individually 0.46, pooled 0.08).

We observed no significant variation in the eastern European steppe-like component between individuals. Pooling individuals, admixture proportions are estimated to be around 8% (± 1.2% SE) western hunter gatherers, 55% (±

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Early arrival of Steppe ancestry in Switzerland

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Open access paper Ancient genomes reveal social and genetic structure of Late Neolithic Switzerland by Furtwängler et al. Nat. Commun. (2020).

Interesting excerpts (emphasis mine):

The ancient individuals from this study originate from 13 Neolithic and Early Bronze Age sites in Switzerland, Southern Germany, and the Alsace region in France. All samples taken from the individuals were radiocarbon dated.

The arrival of Steppe ancestry

Two distinct clusters can be identified and were also confirmed by ADMIXTURE analysis, one consisting of individuals dating to 4770–2500 calBCE, and one comprising individuals dating to 2900–1750 calBCE. The oldest individuals from the sites of

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The Corded Ware culture, more complex than previously thought

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Open access Corded Ware cultural complexity uncovered using genomic and isotopic analysis from south-eastern Poland, by Linderholm et al. Scientific Reports (2020).

Interesting excerpts (emphasis mine):

We have obtained genetic data from 19 individuals (16 of CWC and 3 of BBC). All examined individuals come from three geographical regions: the Rzeszów Foothills (part of the Subcarpathian Region; sites of Szczytna, Chłopice, Mirocin and Święte), the Małopolska Upland (Mistrzejowice, Proszowice, Bosutów, Pełczyska) and the Sokal Ridge (the western part of Volhynian Upland – site of Łubcze). All burials are of similar type exhibiting the same funeral rite with some differences

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qpAdm best practices and common pitfalls

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The recently published preprint Assessing the Performance of qpAdm, by Harney, Patterson, Reich, & Wakeley at bioRxiv (2020) offers some interesting clues about what previous papers using qpAdm might have done right, and – more importantly – what they might have done wrong.

Since it doesn’t make much sense to repeat what this open access paper says within quotes, I will try to use short sentences or rework them to sum it up, illustrating best practices and common pitfalls with what I believe are corresponding examples with Steppe-related populations to date, with an emphasis on Bell Beakers. Most … Read the rest “qpAdm best practices and common pitfalls”