Online GIS maps of ancient Y-DNA, mtDNA and ADMIXTURE

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The last few weeks have been very exciting in terms the amount, diversity and quality of newly reported ancient samples, which included new genotypes and also Y-DNA and mtDNA haplogroups.

As some of you already know, I had been preparing a tailored GIS map of ancient DNA using QGIS-server on Ubuntu and trying some of the available plugins for the task, and was ready to use my old broken PC as a web server. For that, I needed to prepare different files corresponding to the different conventional divisions of the Prehistory Atlas. The crazy number of recently reported papers … Read the rest “Online GIS maps of ancient Y-DNA, mtDNA and ADMIXTURE”

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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Demographically complex Near East hints at Anatolian and Indo-Aryan arrival

New papers Genomic History of Neolithic to Bronze Age Anatolia, Northern Levant, and Southern Caucasus, by Skourtanioti et al., and (open access) The Genomic History of the Bronze Age Southern Levant, by Agranat-Tamir et al., both in Cell (2020) 181(5).

Interesting excerpts from Skourtanioti et al. (2020) (emphasis mine):

Genetic Continuity in Anatolia

We focused on the three Late Chalcolithic groups with sufficiently large sample size and who are the earliest in time among the LC-LBA groups: ÇamlıbelTarlası_LC (n = 9), İkiztepe_LC (n = 11), and Arslantepe_LC (n = 17). Taking individual estimates from all these individuals together

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Afanasievo ancestry reached Lake Baikal; Nganasan ancestry origins still at large

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New paper (behind paywall) Paleolithic to Bronze Age Siberians Reveal Connections with First Americans and across Eurasia, by Yu et al. Cell (2020)

Interesting excerpts (emphasis mine, paragraphs subdivided for clarity):

Population Structure (PCA)

Most of the Lake Baikal individuals occupied the space on a “ANE-NEA” cline running between “Northeast Asian” (NEA) ancestry represented by Neolithic hunter-gathers from the Devil’s Gate in the Russian Far East (Sikora et al., 2019, Siska et al., 2017), and the ANE ancestry represented by Upper Paleolithic Siberian individuals MA1, AfontovaGora 2 (AG2), and AfontovaGora 3 (AG3) (Fu et al., 2016, Raghavan et al.,

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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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Indo-Iranian influence on West Uralic through the Catacomb culture

catacomb-niche-graves-malopolska

In the recent Linderholm et al. (2020), I preferred to interpret the finding of R1b-P310* among late niche (catacomb) grave groups of Lesser Poland as derived from Late PIE – Late Uralic contacts, through a much earlier intrusion of late Repin/early Yamnaya chieftains among Late Trypillians.

This is one of the few aspects of the books where I tried to offer my own contribution to the field, by combining the Indo-Uralic concept (which supports a distinct evolution of laryngeals for PIE and PU) with a modified, ‘layered’ use of Koivulehto’s controversial and irregular PIE laryngeal borrowing as PU … Read the rest “Indo-Iranian influence on West Uralic through the Catacomb culture”

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

corded-ware-malopolska-poland

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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