Ancient phylogeography: spread of haplogroups R1b, R1a and N

The previous post showed the potential use of TreeToM to visualize ancient DNA samples in maps together with their Y-DNA phylogenetic trees. I have written Newick trees for Y-chromosome haplogroups R1b-L388 (encompassing R-V1636 and R-P297, which in turn split into R-M73 and R-M269), R1a, and N.

I have reviewed some of the BAM files from my previous bulk analyses with YLeaf v.2, to add information that I had not previously included in the All Ancient DNA Dataset, and which might be relevant to the proper depiction of phylogenetic trees; in particular, positive and negative SNPs potentially distinguishing archaic… Read the rest “Ancient phylogeography: spread of haplogroups R1b, R1a and N”

Corded Ware ancestry in North Eurasia and the Uralic expansion

Now that it has become evident that Late Repin (i.e. Yamnaya/Afanasevo) ancestry was associated with the migration of R1b-L23-rich Late Proto-Indo-Europeans from the steppe in the second half of the the 4^th millennium BC, there’s still the question of how R1a-rich Uralic speakers of Corded Ware ancestry expanded , and how they spread their languages throughout North Eurasia.

Modern North Eurasians

I have been collecting information from the supplementary data of the latest papers on modern and ancient North Eurasian peoples, including Jeong et al. (2019), Saag et al. (2019), Sikora et al. (2018), or … Read the rest “Corded Ware ancestry in North Eurasia and the Uralic expansion”

Vikings, Vikings, Vikings! “eastern” ancestry in the whole Baltic Iron Age

Open access Population genomics of the Viking world, by Margaryan et al. bioRxiv (2019), with a huge new sampling from the Viking Age.

#EDIT (16 SEP 2020): The paper has been published in Nature.

Interesting excerpts (emphasis mine, modified for clarity):

To understand the genetic structure and influence of the Viking expansion, we sequenced the genomes of 442 ancient humans from across Europe and Greenland ranging from the Bronze Age (c. 2400 BC) to the early Modern period (c. 1600 CE), with particular emphasis on the Viking Age. We find that the period preceding the Viking Age was

… Read the rest

Corded Ware—Uralic (IV): Hg R1a and N in Finno-Ugric and Samoyedic expansions

This is the fourth of four posts on the Corded Ware—Uralic identification:

Let me begin this final post on the Corded Ware—Uralic connection with an assertion that should be obvious to everyone involved in ethnolinguistic identification of prehistoric populations but, for one reason or another, is usually forgotten. In the words of David Reich, in Who We Are and How We Got … Read the rest “Corded Ware—Uralic (IV): Hg R1a and N in Finno-Ugric and Samoyedic expansions”

Corded Ware—Uralic (III): “Siberian ancestry” and Ugric-Samoyedic expansions

This is the third of four posts on the Corded Ware—Uralic identification. See

An Eastern Uralic group?

Even though proposals of an Eastern Uralic (or Ugro-Samoyedic) group are in the minority – and those who support it tend to search for an origin of Uralic in Central Asia – , there is nothing wrong in supporting this from the point of view … Read the rest “Corded Ware—Uralic (III): “Siberian ancestry” and Ugric-Samoyedic expansions”