A Handful Of Bronze-Age Men Could Have Fathered Two Thirds Of Europeans | IFLScience
▻http://www.iflscience.com/plants-and-animals/handful-bronze-age-men-could-have-fathered-two-thirds-europeans
Two-thirds of modern European men are found on just three branches (called I1, R1a and R1b). Our results show that these branches each trace their paternal ancestry to a surprisingly recent individual (shown as red dots in Figure 1). By counting the number of mutations that have accumulated within each branch over the generations, we estimate that these three men lived at different times between 3,500 and 7,300 years ago. The lineages of each seem to have exploded in the centuries following their lifetimes, to dominate Europe.