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Archiver > DNA-R1B1C7 > 2009-04 > 1239319074


From:
Subject: Re: [R-M222] Quiet on the List?
Date: Thu, 9 Apr 2009 19:17:54 EDT


In a message dated 4/9/2009 6:16:41 A.M. Central Daylight Time,
writes:

Having gone through this exercise, one may conclude that Maclaughlins and
O'Doherty's should be grouped together. So you then combine them and go
through the whole exercise again, seeking the family that seems closest to the
combined Maclaughlin/O'Doherty grouping. I doubt whether one will end up
being able to allocate every single M222+ person to a given sub-group, but I
think it's progess.

Sandy, I reached the same conclusion on Dohertys and McLaughlins quite a
while ago by DNA analysis. I think they're showing up in your methods as
related for the same reason. Both share a few marker values almost unique in
M222 to these two specific families. Mostly the shared modal values are
DYS 458 = 18 and DYS 447 = 24. Not all in each group have these specific
values - and both have a few markers unique to themselves, such as the Doherty
YCAIIab = 19-22. There is a some overlap in the family modals for these
two Irish septs.

If nothing else this could be a geographical DNA pattern in M222. Both
Dohertys and McLaughlins lived in the Inishowen Peninsula of Donegal at least
since 1300 A.D. when the O'Dohertys first moved into the area and became
the chieftains of Inishowen. That's a very small part of Donegal close to
the city of Derry where the Mclaughlins were most strongly associated.
Another possibility is their common descent from two different sons of Nial,
Conal gulban and Eoghan. This same DNA markers pop up occasionally in other
surnames said to descend from Nial in the NW. One Gallagher matches; one
O'Boyle; a couple of O'Neills. There are a few other typically Donegal
surnames that match as well.

The problem I have in determining if this is a valid connection is there
are so few samples out there for comparison purposes. The Dohertys and
McLaughins are basically the only two NW Irish surnames with decent sized
population samples. There are almost no O'Donnell samples to be found; few
Gallaghers and even less O'Boyles. Few Cenel Eoghain surnames can be located
with certainty. The O'Neills pose their own special problem with a large
group of non M222 matches.

I didn't mention this in my post because I've said it before and didn't
want to overly emphasize my own specific areas of interest.

But I think it's interesting you've arrived at the same conclusion using
different methods.

I'd be interested in seeing who you group next to the Doherty/McLaughlin
cluster.


John






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