>>2528862retard if the CHG dna was male mediated they wouldn't be carrying haplogroup R they would carry haplogroup J instead
and no it is clear that they come from EHG men procreating with CHG women
The early Corded Ware population, which was responsible for the overwhelming majority of PIE expansion throughout Eurasia, had ~60% EHG, ~25-30% CHG, and ~10-15 ANF (Anatolian Neolithic Farmer) ancestry.
Yamnaya had ~55:35% EHG:CHG, with ~5-10% ANF.
The PIE population arose predominantly from EHG men intermarrying with CHG women, which is obvious from the fact that PIE men carry EHG Y-DNA haplogroups (male lineages).