 Yet, all their seven Yamnaya samples belonged to the R1b-M269 subclade, but no R1a1a has been found in their Yamnaya samples.This raises the question where the R1a1a in the Corded Ware culture came from, if it was not from the Yamnaya culture.Semenov and Bulat do argue for such an origin of R1a1a in the Corded Ware culture, noting that several publications point to the presence of R1a1 in the Comb Ware culture.