Dnieper–Donets culture
Mathieson et al. (2018) analyzed 32 individuals from three Eneolithic cemeteries at Deriivka, Vilnyanka and Vovnigi,[23] which Anthony (2019a) ascribed to the Dnieper–Donets culture.[24] These individuals belonged exclusively to the paternal haplogroups R and I (mostly R1b and I2), and almost exclusively to the maternal haplogroup U (mostly U5, U4 and U2). This suggests that the Dnieper-Donets people were “distinct, locally derived population” of mostly of Eastern Hunter-Gatherer (EHG) descent, with Western Hunter-Gatherer (WHG) admixture. The WHG admixture appears to have increased in the transition from the Mesolithic to the Neolithic.[25] Unlike the Yamnaya culture, whose genetic cluster is known as Western Steppe Herder (WSH), in the Dnieper–Donets culture no Caucasian Hunter-Gatherer (CHG) or Early European Farmer (EEF) ancestry has been detected.[24] At the Vilnyanka cemetery, all the males belong to the paternal haplogroup I, which is common among WHGs. David W. Anthony suggests that this influx of WHG ancestry might be the result of EEFs pushing WHGs out of their territories to the east, where WHG males might have mated with EHG females.[25]
Dnieper-Donets males and Yamnaya males carry the same paternal haplogroups (R1b and I2a), suggesting that the CHG and EEF admixture among the Yamnaya came through EHG and WHG males mixing with EEF and CHG females. According to Anthony, this suggests that the Indo-European languages were initially spoken by EHGs living in Eastern Europe[26]