Angela
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.Tomenable:
Let's clarify something - I'm not saying that Corded Ware for sure descended from Yamnaya, but that it either descended from Yamnaya, or had a recent common ancestor with Yamnaya (for example Khvalynsk, but maybe something else). And by the way - it seems quite probable that the westward movement of R1b-L51 (or pre-L51 which later gave birth to L51) into Europe also preceded the emergence of Yamnaya culture, so if we are going to claim that PIE did not exist before Yamnaya, and Yamnaya were the VERY FIRST PIEs, then it is possible that L51 was not part of the PIE culture. So far Yamnaya appears to be overwhelmingly Z2103, which is "Eastern" R1b.
That's logical in my opinion.
Tomeable:I'm not sure if Corded Ware was formed by a Pre-Yamnaya group (ancestral to both Corded Ware and to Yamnaya - that could be for example Khvalynsk), or by some part of Yamnaya who emigrated in that direction. But you are definitely going ahead of the data when you assert with such boldness that "more CHG-like" = Indo-European and "more EHG-like" = Indo-Europeanized. I'm also not sure if Corded Ware were heavier in EHG - weren't they 75% Yamnaya and 25% EEF + WHG ??? So where is that "more EHG", they had just as much EHG as Yamnaya, their additional amount of "some HG" came from local Central European EEF + WHG, not from EHG.
Tomenable, you are once again attributing to me things I never said. Words are my business. I choose them very deliberately. I really would urge you to read my posts a little more carefully. If you're interested in what I think, of course.
I absolutely never said that more CHG = more Indo-European. What I have been saying for a couple of years is that, assuming the Pontic-Caspian steppe is the uhrheimat, the people who spread the Indo-European languages and culture may not have been, based on the data we have available so far, one genetically identical group who spread around the world. Even in the Yamnaya horizon there may have been variation (see the interesting work done by Kurd on Anthrogenica among other things). Then, as these groups spread out, I think they probably mixed with slightly different groups, depending on the path of the migration. So, within a rather short amount of time in terms of world history, the "Indo-Europeans" of these later periods might have been quite different depending on the place and the time. So, indeed, the people spreading the Indo-European language and culture in the far north might have been EHG heavy, while the people spreading the Indo-European language and culture in the south or southeast might have been more CHG heavy and probably more EEF heavy. That's why I've said repeatedly that I'm very interested to see Mycenean genomes, for example.
Now it's fine to disagree with my speculations, which by definition are getting ahead of the data , but please disagree with what I actually said.
This doesn't mean that I don't agree with Anthony that if you're going to locate the Indo-European language, culture and people north of the Caucasus, you're looking at 4200-3000 BC in the Yamnaya horizon.
Tomenable: Although Khvalynsk was more EHG than CHG, even Yamnaya was still slightly more EHG (Yamnaya_Samara appears as 47% CHG and 53% EHG in Mathieson 2015). So why this assumption that CHG were the "original" PIEs, and EHG were "Indo-Europeanized" ??? Of course a smaller group can sometimes assimilate a more numerous group, but in this case EHG has some numerical advantage. And as you know, R1b was present already in Samara EHG, who did not have any CHG admixture. So once again, we don't know if R1b in Yamnaya originated from EHGs, or from CHGs, or yet from someone else (both EHGs tested so far were J).
For the first part of your statement, see my prior comment. As to the latter part, this is precisely what I stated has not yet been established to my satisfaction, but which I thought you had decided was clear, to wit that R1b in Yamnaya was from EHGs, and all the "teal" was from women.
Tomenable: In Iran there are both basal R1a clades and basal R1b clades. Underhill in his 2014 study on R1a, suggested that R1a perhaps originated from Iran. So if "Teal people" or CHGs came from to the steppe from areas to the south of Caucasus, we cannot exclude the possibility that they carried R1a with them, just like we cannot exclude the possibility that R1b-M269 emerged among EHGs (not among CHGs), because we know for sure, that some R1b existed among EHGs.
Indeed. As far as I'm concerned there is no certainty yet.