In the previous article, we explored six of the seven subgroups which are M222+. Now let's turn our attention to Group 3a, the largest of the Group 3 subgroups in the O'Malley DNA Project, and the leading contender for the descendants of the O'Malley's of Murrisk & Burrishoole.
|Old map showing the clan territories of the Mayo O'Malley's (North is to the right)|
This subgroup consists of 31 members (only 19 are displayed on the public Results Page - to change this, see Footnote 1). Surname variants include O'Malley, O'Mally, Malley, Maley, Melia and Malia. Where mentioned, ancestral origins are most commonly Mayo.
|Group 3a as it appears on the public Results Page|
(click to enlarge)
|Group 3a falls under the over-arching branch BY35730 (a 4-SNP block)|
(click to enlarge)
- accurate grouping of project members
- precise placement of participants on the Tree of Mankind
- delineating the branching structure within groups (and thus providing a better indication of how close or distant the connection is between different group members)
- TMRCA estimates for different branches within the group
- BY35730 ... 12 SNPs back to TMRCA = [1950 - (12 x 80)] = 990 AD ... about 1000 AD
- BY35759 ... 7 SNPs back to TMRCA = [1950 - (7 x 80)] = 1390 AD ... about 1400 AD
- FT86146 ... 6 SNPs back to TMRCA = [1950 - (6 x 80)] = 1450 AD ... about 1450 AD
- FT145889 ... 2 SNPs back to TMRCA = [1950 - (2 x 80)] = 1790 AD ... about 1800 AD
- several group members have not done the Big Y but have cousins within the group who have done it. These known cousins are highlighted in yellow in the diagram below.
- in addition, several group members share a similar USP (Unique STR Pattern) i.e. the same values on specific STR markers. This suggests that if they did Big Y testing, they would discover that they share a specific SNP marker unique to their particular branch.
- With 31 members, Group 3a represents 39% (31/79) of the YDNA-tested project membership (this excludes the Other Surname group) and is thus the largest group within the project. The O'Malley's were an influential clan with a long-standing history. It would be expected that such a successful clan would leave quite a large genetic footprint behind them and have many descendants surviving to the present day. Smaller clans would be at risk of dying out. Thus the sheer dominance of Group 3a makes it a prime contender.
- The most frequently cited ancestral origins for Group 3a members is Mayo, the ancestral homeland of the O'Malley's.
- TMRCA estimates for Group 3a approximate 1000 AD which is close to when surnames arose in Ireland. This makes Group 3a the oldest genetic group within the project and suggests that members of this group have evaded the risk of a Surname or DNA Switch over the past 1000 years since the emergence of the surname.
- The SNP signature associated with Group 3a (M222) is consistent with the ancient genealogies for the O'Malley's of Murrisk & Burrishoole which document their descent from the forbears of Niall of the Nine Hostages (see previous post).
- log on to your FTDNA account,
- click on your name (top right),
- then Account Settings,
- then Project Preferences,
- then scroll down to the Project Sharing section
- and beside Group Project Profile, move the slider to the ON position (this will show your kit number, surname & MDKA on the public Results Page, but not your full name).