I was just reading an article that ponders if rh- is the original Hebrew line, the Basques, Sardinians, Celts. Whatever it is, is so intermixed there will be no answers. I am a product of 2 0+ parents, my parents had a total of 9 children, (separately and together) 2 are O- (myself and my younger brother, same mother different fathers). My children and my grandchildren are all rh-. One thing that I have noticed with the updates of 23andme etc, (my older brother and older sister, same mother/father) don't share certain geographical areas, I have both Iberian and Sardinian (my brother has the Sardinian, no Iberian, my sister has neither) We all have Celtic heritage.