Thanks to the new study "
The genetic history of Ice Age Europe" and the corresponding data we have now a lot more really old human samples. As a quick experiment I made some comparisons between those ancient samples, following the grouping presented in the study, and modern Europeans. Using dstat and selected third populations from America, Asia and Europe I try to infer the amount of common ancestry of selected Europeans and Karitians, Hans and Frenchmen insofar it goes to selected ancient samples.
The dstat formula was d(European population, Karitian/Han/French ; ancient sample group, Chimp)
06.05.16 20:05 There was a small error in El Mirón numbers, showing somewhat too low similarity for Europeans. Now corrected.
15.05.16 11.00 Added dstat-gtaphics (as above) regarding Northeast Europe:
16.05.16 18:45
Added GoyetQ116-1 to the first series of graphics.
Thanks. Could you do one for GoyetQ116-1 Aurignacian too?
ReplyDeleteThe West Russians are from Kursk and Voronezh, right?
Yeah, I can do it when I am back at office. Actually I don't remember who those Russians are, but I downloaded them from EBC and they are real west Russians with only 1% or less Siberian admixture. I have to look sample id's and compare to the original data.
DeleteIn my opinion everything looks great, even the high Ust-Ishim of Corded Ware Finns. I think that they brought Finnic language to the west. Before it they mixed somewhere with Central Europeans and maybe with some Balts. They mixed with local people (represented by FinnLocal) after arriving here.
DeleteCan you do those stats for Saami_WGA, Chuvash, Erzya and North Russians too when you get back to it? I theorize the latter two should have a bit lower affinity to the oldest genomes than most North Europeans, and Saamis should have lot more than Chuvash.
DeleteOkay.
DeleteI was able to look at those West Russians they are from Orjol, Voron and Kursk, several samples from each place. Plus two West Russian samples from HapMap or HGDP. Those two are very old and used in many studies. Orjol, Voron and Kursk are newer. I can change Russian samples if those are not good ones and you have better, but don't say Smolensk. They are too homogeneous and probably look Belarussian.
DeleteThose are good representatives of most west and south Russians, no need to change.
DeleteThanks for the new numbers. Mordva and Vologda/Kargopol Russians have a bit lower affinity to ancient Europeans than the Baltic Finnic group or Belarusian/Smolensk area, and Chuvash have a lot lower than Saamis. Even though Saamis and Chuvash or similar Volga-Ural populations might cluster close to each other on a global PCA, the two groups are actually very different, as can be seen in the Karelia_HG affinity comparison where Saamis have easily the highest score and Chuvash the lowest.
ReplyDeleteCould you do the Goyet comparison for other groups too (Swedes, Finns, Basques etc)?
Siberian admixture polarizes European results on PCA and distorts Saami results, to some extent also Finnish results. In Fennoscandinavia people have a lot old local ancestry represented in this test by Karelian and Scandinavian HG samples, which can become ruled out on PCA plots using only present-day European samples.
DeleteKareliaHG clusters close to Saami and Chuvash on a global PCA, MA-1 is even more eastern. There are many things that can cause that kind of eastern pulls.
Delete