Autosomal best-fit suggests that:
1. R1b-L51 and R1a-M417 were most likely at one time within the same population
2. L51 substantially admixed with other European populations, M417 largely did not
3. Northern L51 (U106) later admixed with Northern M417 (Z283 & L664)
4. Southern L51 (P312) largely did not admix with Southern M417
Perhaps L51 became marginalised westwards in Europe by M417, and then led a kind of reconquista, in which Northern M417 mostly collaborated and joined with U106, and Southern M417 was mostly eliminated as a result of conflict with P312 Bell Beaker?
1. R1b-L51 and R1a-M417 were most likely at one time within the same population
2. L51 substantially admixed with other European populations, M417 largely did not
3. Northern L51 (U106) later admixed with Northern M417 (Z283 & L664)
4. Southern L51 (P312) largely did not admix with Southern M417
Perhaps L51 became marginalised westwards in Europe by M417, and then led a kind of reconquista, in which Northern M417 mostly collaborated and joined with U106, and Southern M417 was mostly eliminated as a result of conflict with P312 Bell Beaker?