The Armenian Origin Hypothesis Revisited
“In 2015, two large (and competing) studies appeared with improved methods looking at the whole genome instead of the earlier methods only using the Y-chromosome (inherited from the father, only in males) or mitochondrial genome (inherited from the mother). Together, they had sampled more than a hundred ancient humans from various periods and regions in western Eurasia.
They reached the same conclusion using two different methods of analysing ancient DNA: the individuals of the archaeological culture termed Yamnaya (or “Pit Grave”) (c. 3300-2800 BCE), and the preceding Khvalynsk culture (5th millennium BCE), both living in the Pontic-Caspian steppes, were genetically closely related to the widespread European Corded Ware culture complex (c. 2900-2200 BCE). They went as far as suggesting a “mass migration” of Yamnaya herders into Europe around 3000-2500 BCE.”
https://homeland.sites.ku.dk/2018/07/23/the-indo-european-homeland-ancient-dna-part-1
https://youtu.be/UsXrwDqHJ8U