The following are some recent developments and updates:
I. Ancient DNA Dataset version 2
I.1. Accurate mtDNA haplogroups
I was meaning to update the mtDNA part of the Ancient DNA Dataset, and finally found some time to review FTDNA and YFull nomenclature (including hyperlinks), as well as those SNP calls from published samples found in YFull’s MTree. So, if you are interested in studies of mtDNA phylogeography, I think the data is now accurate and much more useful.
Given the number of columns and the size of the files, I have decided to post shorter standard versions, by … Read the rest “mtDNA, lactase persistence, and admixr for ADMIXTOOLS”
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”
New preprint The population history of northeastern Siberia since the Pleistocene, by Sikora et al. bioRxiv (2018).
Interesting excerpts (emphasis mine; most internal references removed):
The earliest, most secure archaeological evidence of human occupation of the region comes from the artefact-rich, high-latitude (~70° N) Yana RHS site dated to ~31.6 kya (…)
The Yana RHS human remains represent the earliest direct evidence of human presence in northeastern Siberia, a population we refer to as “Ancient North Siberians” (ANS). Both Yana RHS individuals were unrelated males, and belong to mitochondrial haplogroup U, predominant among ancient West Eurasian hunter-gatherers,
… Read the rest “Waves of Palaeolithic ANE ancestry driven by P subclades; new CWC-like Finnish Iron Age”
Open Access article on modern populations (including ancient samples), Between Lake Baikal and the Baltic Sea: genomic history of the gateway to Europe, by Triska et al., BMC Genetics 18(Suppl 1):110, 2017.
The history of human populations occupying the plains and mountain ridges separating Europe from Asia has been eventful, as these natural obstacles were crossed westward by multiple waves of Turkic and Uralic-speaking migrants as well as eastward by Europeans. Unfortunately, the material records of history of this region are not dense enough to reconstruct details of population history. These considerations stimulate growing interest to obtain
… Read the rest “Genomic history of Northern Eurasians includes East-West and North-South gradients”