R-M222 (Y-DNA)

The purpose of this project is to document the paternal lineage of all peoples positive for the genetic marker M222. This marker defines the y-DNA haplogroup currently labeled R1b1a2a1a1b4b.

This subclade within R-L21 is defined by the presence of the marker M222. It is particularly associated with male lines which are Irish or Scottish, but especially northern Irish. In this case, the relatively high frequency of this specific subclade among the population of certain counties in northwestern Ireland may be due to positive social selection, as it is suggested to have been the Y-chromosome haplogroup of the Uí Néill dynastic kindred of ancient Ireland. However it is not restricted to the Uí Néill as it is also associated with the closely related Connachta dynasties, the Uí Briúin and Uí Fiachrach. M222 is also found as a substantial proportion of the population of Scotland which may indicate substantial settlement from northern Ireland or at least links to it. Those areas settled by large numbers of Irish and Scottish emigrants such as North America have a substantial percentage of M222. (Wikpedia, [http://en.wikipedia.org/wiki/Haplogroup_R1b_(Y-DNA) Haplogroup R1b (Y-DNA)])

Subclades

• R - R-M207/UTY2
  • * R1b1a2 - R-M269
    • * R1b1a2a1a1 - L11/S127
      • * R1b1a2a1a1a3, 439=null - R-L1, 439=null
        • R1b1a2a1a1a4 - R-L48/S162
        • R1b1a2a1a1b - R-P312
          • R1b1a2a1a1b3c - R-L2/S1139
          • R1b1a2a1a1b4 - R-L21
            • R1b1a2a1a1b4b - R-M222
          • R1b1a2a1a1b5 - R-L176.2
            • R1b1a2a1a1b5a - R-M167/SRY2627
    • R1b1b2a1a R-U106
      • R1b1b2a1a1 R-U106
      • R1b1b2a1a2c - R-M167
      • R1b1b2a1a2f1- R-M37
    • R1b1c - R-V88

How to Participate

To participate in this project, join or follow the project, then add your oldest known ancestor who belonged to this haplogroup.

Additional Information

• Family Tree DNA, R-M222 Haplogroup Project