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Subject: [DNA-R1B1C7] R1b1c7 or not R1b1c7?
Date: Sat, 29 Dec 2007 23:42:32 EST

David Wilson posted this one quite awhile ago. A Wilson in his surname
project who appears to be R1b1c7 from STRs but consistently tested negative for
M222.

13-25-14-11-12-14-12-12-12-13-14-29-18-9-9-11-11-24-15-19-30-15-16-16-17

The only place it differs significantly from the R1b1c7 modal at 25 markers
is DYS 385ab (12-14). Otherwise one might swear this DNA is R1b1c7. On his
Wilson site David has this listed as "R1b1c7-predecessor?".

Has anything new happened with this DNA sample?

I found this sample interesting because it shares some of the modal values
of the McLaughlin of Donegal DNA cluster.

37 markers

13-25-14-11-12-14-12-12-12-13-14-29-18-9-9-11-11-24-15-19-30-15-16-16-17-
10-11-19-23-16-15-17-17-37-38-12-12

It shares the modal DYS 458 = 18, DYS 447 = 24, DYS 576 = 17, and CDYab =
37,38 with a cluster of twenty McLaughlins in our project. Out of these 20
project members we have 5 definite origins in Donegal, Derry or Tyrone, the
heartbed of the MacLochlainn of Tirconnell sept in Ireland. Some of the Dohertys
of Donegal also have the same modal values.

In terms of genetic distance, the Wilson sample is a GD of 7 from the
McLaughlin modal (which it matches). Most of the McLaughin samples are between a
GD of 1 and 4 from the group modal. The Wilson samples is even more
genetically distant from individual McLaughlins; GDs of 10-12 at 37 markers are not
uncommon. So I do not think this is a McLaughlin from Donegal, despite the
fact that the sample matches the same modal.

If there is one sample out there that mimics R1b1c7 almost perfectly than
it seems logical to assume there will be others.

I found a few on Sorenson that match partially; most of these have
13-25-14-11-12-14 plus 13-29.


John













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