bicicleur 2
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If that were the case, then that could explain why I always get some % of Vonyuchka_Eneolithic or Progress_Eneolithic in nearly all the samples from Chalcolithic and EBA West Asia and Turan, as part of the best fitting model for them using all the available average population DNA samples from before the Bronze Age. The Vonyucha/Progress-like admixture from just north of the Caucasus may have already spilled southward (maybe via Dagestan and modern Azerbaijan) to Transcaucasia and beyond even before the end of the Copper Age (maybe that's why Anatolian was so divergent?).
the Progress/Vonyuchka are R1b-V1636. They split from R1b-P297 ca 15,7 ka.
R1b-P297 went upstream the Volga basin and R1b-V1636 went south to Ciskaukasia where they admixed with the Dzudzuana creating steppe.
The Dzudzuana in Transcaucasia admixed with R1b-V1636 creating CHG.
CHG and steppe should be more or less on a cline between ANE/EHG and Dzudzuana