
Originally Posted by
Coldmountains
We have zero Y-DNA from Afanasievo so you can not already exclude any connection between Xiaohe and Afanasievo based on R1a among Xiaohe.It is too early to make any conclusions and even when they were absolutely identical to Yamnaya this tells us not that much about their Y-DNA. But most here and also I also are quite sure that Afanasievo will turn out to be also dominated by R1b but it is still more logical to link Xiaohe with Afanasievo than with Corded Ware based on the age of the Xiaohe mummies and archaeology (but I am also very skeptical about any connection between both) .Historical Tocharians were likely dominated by R1b based on the fact that R1b is today much higher in the tarim basin than in other Central Asian regions and the lack of R1a-Z93- there is also a good evidence for a connection between R1b and Tocharians. Just R1b there can associated with Tocharian speakers. But many are still skeptical about the Afanasievo-Tocharian connection and even if Afanasievo are the direct ancestors of historical Tocharians this does not mean that Afanasievo has to be 100% R1b. Founder effects and genetic bottlenecks in pre-historical times caused the extinction of many minor paternal lineages