I could swear I had seen a list on which both Andronovo and Corded Ware had ~10% of Haplogroup HV*?
Perhaps you remembered the Iron Age samples from Scytho-Siberian Pazyryk culture and the Tachtyk culture, which both indeed had HV individuals. I think that is because the Scythians had an important minority of West Asian lineages (Y-DNA J2 and maybe T) alongside IE steppe lineages. That's also certainly through the Scythians (or later Central Asian tribes) that U3 and X2 ended up in Xinjiang.
A 2004 study also established that, during the Bronze/Iron Age period, the majority of the population of Kazakhstan (part of the Andronovo culture during Bronze Age), was of west Eurasian origin (with mtDNA haplogroups such as U, H, HV, T, I and W), and that prior to the thirteenth to seventh century BC, all Kazakh samples belonged to European lineages.
Here I found one of the studies. 2 of 21(~10%) Bronze Age Andronovo Samples from Kazakhstan turned out as HV*
I also found the original post of Sile where he shared the mtDNA results of early European and Indo European cultures.
Unfortunately the images have disappeared. It seems I mistook Pitted Ware with Corded Ware culture.
Both Pitted Ware Culture and Andronovo showed ~10% HV*. I somehow have the feeling that beside Neolithic and Paleolithic sides, HV is more connected to some Satem Indo European groups.
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