 1994, 1996a), and probably originated after the ancestral Caucasoids became genetically separated from the ancestors of the modern Africans and Asians.Genetic studies suggest some maternal gene flow to eastern Europe from eastern Asia or southern Siberia 13,000 – 6,600 years BP.Analysis of Neolithic skeletons in the Great Hungarian Plain found a high frequency of eastern Asian mtDNA haplogroups, some of which survive in modern eastern European populations.