Phylogeny of leprosy, relevant for prehistoric Eurasian contacts

Some interesting studies were published at roughly the same time as Damgaard et al. (Nature 2018 and Science 2018), and that’s probably why they got little attention (at least by me).

Monica H. Green (also in Academia.edu), specialized in History of Medicine, summed up their relevance in Twitter quite well (her text is edited here for clarity):

I’ve been disappointed that three recent exceptional studies of one of the world’s most historically important diseases, leprosy, have gotten so little notice from the science communication. It will take me a few hours to lay out their significance. But

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Genetic history of admixture across inner Eurasia; Botai shows R1b-M73

Open access Characterizing the genetic history of admixture across inner Eurasia, by Jeong et al. (2018).

Abstract (emphasis mine):

The indigenous populations of inner Eurasia, a huge geographic region covering the central Eurasian steppe and the northern Eurasian taiga and tundra, harbor tremendous diversity in their genes, cultures and languages. In this study, we report novel genome-wide data for 763 individuals from Armenia, Georgia, Kazakhstan, Moldova, Mongolia, Russia, Tajikistan, Ukraine, and Uzbekistan. We furthermore report genome-wide data of two Eneolithic individuals (~5,400 years before present) associated with the Botai culture in northern Kazakhstan. We find that inner Eurasian populations

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Copenhagen group: Germanic and Balto-Slavic from Bell Beaker; Indo-Anatolian homeland in the Caucasus

Article of general knowledge in Der Spiegel, Invasion from the Steppe, with comments from Willerslev and Kristiansen, appeared roughly at the same time as the Damgaard et al. Nature (2018) and Science (2018) papers were published.

NOTE. You can read the article (in German) from Kristiansen’s Academia.edu account.

Excerpts translated from German (emphasis mine):

On the Y-DNA data

Particularly striking is the genetic signature from the steppe on the Y chromosome. From this the researchers conclude that the majority of migrants were males. Kristian Kristiansen, chief archaeologist in the Willerslev team, also has an idea of

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Mitogenomes show discontinuity in Gotland’s LN – EBA transition

New paper (behind paywall) The stone cist conundrum: A multidisciplinary approach to investigate Late Neolithic/Early Bronze Age population demography on the island of Gotland, by Fraser et al. J. Archaeol. Sci. (2018) 20:324-337.

Interesting excerpts (emphasis mine):

Unfortunately, due to poor preservation, mitochondrial haplotype calls were only obtained from the EBA individuals in this study. However, some interesting findings were observed. We find two adult local individuals with unique haplogroup lineages [H1a, H1e], and two juvenile individuals with haplogroup lineages [H2a and T1a] previously found exclusively in the CWC individuals analyzed here, all four dated

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The Caucasus a genetic and cultural barrier; Yamna dominated by R1b-M269; Yamna settlers in Hungary cluster with Yamna

Open access The genetic prehistory of the Greater Caucasus, by Wang et al. bioRxiv (2018).

The Caucasus Mountains as a prehistoric barrier

I think the essential message we can extract from the paper is that the Caucasus was a long-lasting cultural and genetic barrier, although (obviously) it was not insurmontable.

Our results show that at the time of the eponymous grave mound of Maykop, the North Caucasus piedmont region was genetically connected to the south. Even without direct ancient DNA data from northern Mesopotamia, the new genetic evidence suggests an increased assimilation of Chalcolithic individuals from Iran, Anatolia

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Haplogroup J spread in the Mediterranean due to Phoenician and Greek colonizations

Open access A finely resolved phylogeny of Y chromosome Hg J illuminates the processes of Phoenician and Greek colonizations in the Mediterranean, by Finocchio et al. Scientific Reports (2018) Nº 7465.

Abstract (emphasis mine):

In order to improve the phylogeography of the male-specific genetic traces of Greek and Phoenician colonizations on the Northern coasts of the Mediterranean, we performed a geographically structured sampling of seven subclades of haplogroup J in Turkey, Greece and Italy. We resequenced 4.4 Mb of Y-chromosome in 58 subjects, obtaining 1079 high quality variants. We did not find a preferential coalescence of Turkish samples to

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Linguistic continuity despite genetic replacement in Remote Oceania

Review of recent papers on East Asia, quite relevant these days: Human Genetics: Busy Subway Networks in Remote Oceania? by Anders Bergström & Chris Tyler-Smith, Current Biology (2018) 28.

Interesting excerpts (emphasis mine):

Ancient DNA is transforming our understanding of the human past by forcing geneticists to confront its real complexity [1]. Historians and archaeologists have long known that the development of human societies was complex and often haphazard, but geneticists have persistently tried to explain present-day patterns of genetic variation using simple models.

Early genetic analyses of present-day populations revealed a mix of Asian (Taiwanese) and Papuan (New

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Consequences of Damgaard et al. 2018 (III): Proto-Finno-Ugric & Proto-Indo-Iranian in the North Caspian region

The Indo-Iranian – Finno-Ugric connection

On the linguistic aspect, this is what the Copenhagen group had to say (in the linguistic supplement) based on Kuz’mina (2001):

(…) a northern connection is suggested by contacts between the Indo-Iranian and the Finno-Ugric languages. Speakers of the Finno-Ugric family, whose antecedent is commonly sought in the vicinity of the Ural Mountains, followed an east-to-west trajectory through the forest zone north and directly adjacent to the steppes, producing languages across to the Baltic Sea. In the languages that split off along this trajectory, loanwords from various stages in the development of the

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Consequences of Damgaard et al. 2018 (II): The late Khvalynsk migration waves with R1b-L23 lineages

This post should probably read “Consequences of Narasimhan et al. (2018),” too, since there seems to be enough data and materials published by the Copenhagen group in Nature and Science to make a proper interpretation of the data that will appear in their corrected tables.

The finding of late Khvalynsk/early Yamna migrations, identified with early LPIE migrants almost exclusively of R1b-L23 subclades is probably one of the most interesting findings in the recent papers regarding the Indo-European question.

Although there are still few samples to derive fully-fledged theories, they begin to depict a clearer idea of waves that … Read the rest “Consequences of Damgaard et al. 2018 (II): The late Khvalynsk migration waves with R1b-L23 lineages”