Ghurier
Regular Member
- Messages
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- Location
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- Y-DNA haplogroup
- J-L283-->J-Z631
- mtDNA haplogroup
- U5b2b
Indeed, with the new data is sounds even better. But I'm fairly sure you don't see why, isn't it ? Let me explain it to you !Sounds good. I like that everytime we get into these debates, all it takes is a couple of weeks for new samples to settle it. We should do it more often, good omen for new publications.
In fact, the sample(s) you speak about (don't forget the Greek one, he is also very interesting per-se) change very little things to my best fitting model :
Caucasus --> Usatovo (~3600 BCE) ... which was already a given.
Usatovo --> Eneolitic Tuscany (~3500-3100 BCE), for a group of "Z615-" L283-carriers.
This movements where likely related with a westward diffusion of Arsenical Copper technology.
The main change is now that the Z615 carrier most likely stayed in-situ around Usatovo.
The R-Z2106 expansion provides the needed mecanism to erase most of the Usatovian J-L283 diversity.
A diversity cariage of ~few centuries is acceptable for the Tuscan injection (that's why I always placed this injection in a range of 3500-3000 BCE).
Which implies that J-L283 population likely stayed very compact during the 3600-3100 BCE range (== no wide dispersion around that time).
Acceptable "co-travellers" on the R1b side around that time would be R-Z2118 and R-CTS699.
Such modification is no big deal per-se. In the 3000-2500 BCE range J-Z597 wasn't very active ... the place where he waited before merging with BB-population was poorly constrained (due to the lack of J-Z615 or J-Z597 compact diversity signal).
We have now amazing proof that the absorbtion by BB-related populations occured ~4400 BCE around south-eastern Europe instead of South-eastern Alps (no big deal in terms of geographical accuracy for the concerned epoch).
You failed to notice that the paper you speak about basically proves again that Cetina is a BB-related syncretic culture. Attesting that J-L283 got "influenced"/"absorbed" by BBs as I always claimed (proving me right once again ...).
Do you realize ? The cultural mecanism and involved cultures (North Caucasus/Maykop, Usatovo, Eneolitic Tuscany) are unchanged for my model, just details (about peculiar subclades exact path) are updated. Which bascially means that the model is right, and just need to be "tuned" for peculiar individual path of each subclade.
We will still find J-Z622s in Eneolithic Tuscany (when deeply sampled). Do you think otherwise ?
Someone fairly smart said :
J-Z597 is a clade that got absorbed by BBs ... not originating from BBs ... This is the whole concept of "being absorbed" or "being influenced".
Here again, Cetina being a syncretic culture involving BBs is not an idea of mine, but is coming from serious published papers.
Where exactly J-Z597 got absorbed ? This is a potentially interesting question, ~South-eastern Alps is the more likely to me (but there is some open space about the exact location, because J-Z597 didn't have any compact diversity signal).
See, the data you think are "settling the question" are in fact just fitting in the amount of freedom that existed in my current model ...
Before this sample, it was "more likely" for J-Z615 to have migrated westward with his cousins ... apparently he didn't.
A "Most likely" outcome is not always the outcome that occurs, if so it won't be "most likely" but a "given".
Looking at Fig.3 of the paper you speak about ... the merging of J-Z597 population with BBs related population likely occured in south-eastern-Europe (Look how deep BB-realted population went in South-eastern-Europe during the 3000-2000 BCE range).
For what we know, J-Z597 might have been collected by BBs even nearby Moldova before ultimately expanding in Western-Balkans.
This scenario would help to explains why J-Z597 is absent from the Yamnayan footprint, because it failed to expand with them (the lineage was "passive" since Usatovo culture) ... J-Z597 likely never participated to Yamnayan movements (it also explains the lack of related statistical signal about Yamnayan movements for J-L283), and simply got collected by expanding BBs and then finally found a new-breath inside the Cetina syncretic culture.
We are far, very far, from the claims by some peoples on this topic that Cetina was unrelated to BBs.
Maybe you sought this finding support your claim that Tyrrhenian J-L283s migrated ~1800 BCE from western-Balkans ?
In fact it didn't, to support such "creative idea" you would need to find a clade with ~[2500-1800] BCE TMRCA clading with Z615- Tyrrhenian subclades.
So here we go again, data appearing are proving me right again and again ... where do we find consistenly "early" J-L283 ? On the "Arsenical Copper metallurgy" diffusion footprint ! And when did J-L283 expanded ? Just when Arsenical Copper diffused !
Thanks to new data we can refine the details of the model ... but the mecanism is definitely looking as the good one : Arsenical Copper diffusion in the Maykop influence sphere, which is followed by the absorbtion by BB-related populations and re-expansion within the Cetina syncretic culture.