DNA-R1B1C7-L Archives

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Subject: [DNA-R1B1C7] R1b1c7 and DYS 576 = 17
Date: Sat, 19 Jan 2008 22:03:50 EST

We have other deviation from the R1b1c7 modal which is especially prominent
in our McLaughin Donegal cluster but perhaps not surprising also occurs to
some extent in Doherty matches. DYS 576 = 17.

By itself this value pulls up 49 matches in Ysearch (13 markers, 0 GD).
When combined with DYS 447 = 24 it's nearly unique - McLaughlins and a Doherty.
The Doherty in question does not have the characteristic YCAab of most
Dohertys and could be an NPE McLaughlin.

As time goes on I'd expect to see more of this (NPEs or possible NPEs from
these two close neighbors). From about 1300 to 1600 these two septs shared
the same part of Donegal, the Inishowen peninsula. After that both surnames
began spreading out into other areas of Donegal and neighboring counties.
Even today these surnames are the two most numerous in the Inishowen peninsula
(near Derry). It's even possible our one McLaughlin match with YCAab 19-22 is
really a Doherty.

That's about all I have on Donegal families. Maybe Mike Doherty or others
could add more.

I think there may have been some issue raised about CDYab in other posts and
analysis but this marker is so flaky and variable I can't make much sense of
the results myself.

I've posted all this stuff on Donegal DNA because I know the goal is to find
common threads linking sub-clusters of R1b1c7. Maybe there's something here
that's usable; maybe not.


John




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