Hidden African Ancestors: Hidden secrets of your ancestors

Genetic genealogy comes of age: Perspectives on the use of deep‐rooted pedigrees in human population genetics

“…For example, in the case of a British family belonging to the African Ychromosomal haplogroup A1a-M31, it was possible to provide an upper limit for the time of arrival of this lineage in Britain. Based on the DNA of several members of the paternal lineage and their known genealogical relationships, the gene flow from Africa to Western Europe could be dated to before 1700 (de Knijff, 2007;King et al, 2007b), indicating the complexity of gene flow events even before the Industrial Revolution in Western Europe at the beginning of the 19 th century. Another recent Y-chromosomal study found evidence for a past gene-flow event from Northern France to Flanders (Larmuseau et al, 2012b).…”