A combination of archaeology and evolutionary genetics has led to a reappraisal of the major demographic transitions in British prehistory. The role of Celtic migrations has been questioned, with the aboriginal population of the islands seen largely as the result of settlement at the end of the last Ice Age, probably augmented by further settlement during the Neolithic. The demographic impact of the Anglo-Saxons, considered minor by archaeologists, has been estimated to be high by some geneticists, but this is the result of implausible assumptions about the preceding genetic composition of the islands and overinterpretation of poorly resolved genetic data.
Keywords: archaeogenetics; phylogeography; British Isles; mtDNA; Y-chromosome; founder




