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Subject: [DNA-R1B1C7] R1b1c7 and DYS 447 = 24
Date: Fri, 18 Jan 2008 22:03:44 EST


I put together some statistics on the occurrence of DYS 447 = 24 which
occurs so heavily in the McLaughlins of Donegal.

Methodology:

I took the first 12 markers of the R1b1c7 marker, added DYS 447, searched on
13 markers, 1 GD.

Results:

446 matches
52 with DYS 447 = 24 (12%).

This figure is somewhat higher than the percentages of DYS 447 = 24 on David
Wilson's NW Irish web site:

8% in R1b1c7
19% in SWAMH
DYS 447 = 25 (84% in R1b1c7; 67% in SWAMH)

R1b1c7 Surnames with DYS 447 = 24

Cinel Eoghain

2BZVG McGlothlen Donegal, Ireland
9F7N8 McLaughlin Possibly Letterkenny or environs, Donegal, Ireland
GTDGC McLaughlin Scotland
KA9RY McLaughlin Townland of Rathdonnell, Kilmacrenan Parish, Ireland
P853Z McLaughlin Ireland
Q7KMX McGlothlin Isle of Man, Scotland
RBZ7M McLaughlin Bellevue, Washington County, Missouri, USA
vw4hb McLaughlin Inis Eon in (preliminary), Ireland
VYD3F McLaughlin Donegal, Ireland
W7FKY McGlothin Kentucky, USA
YX39S McLachlan Ireland
2WEAD Neel Ulster, Ireland
GE8QH Neil Virginia, USA
BMW3B Donnelly Bellaghy, Ireland
YKCHB Donley Ireland


Cinel Conaill

A55YK Daugherty Ireland
PKJH4 Doherty Clougherna, Ardagh, Clonmany Parish, Co. Donegal, Ireland
R6RY7 Doherty Ireland
X7BV Doherty Ireland
UTK7U Dougherty Donegal, Ireland
CDJ57 Gallagher Donegal (County), Ireland

Possible Donegal Surnames

5ZDSP McCourt Ireland
C7N4C English "Niall of the Nine Hostages", Ireland
[McLysaght - see Gallogly]
EJA9K kennedy Ireland
[Census of 1659]
42CK2 Freeman Unknown
H4XD6 Freeman Virginia, USA
[McLysaght - used for McAteer]
N68ZT McTighe England
[McLysaght - Mayo and Donegal]
VVKQ7 McCally Virginia, USA
[Donegal herenaghs, 1609[

Ireland in General

4944Z Grady Roscrea, Ireland [Tipperary?]
8GE4D Hannan Rathcormac, Ireland [Cork?]
7AG9Z Harper Ireland
N4Z55 Harper Ireland
EPM5D Ferguson Westport, MAYO, Ireland
FXW44 Norton Dublin?, Ireland
SJVT6 Hynes Ireland
GRRUX Glass Ulster, Ireland
[McLysaght - found in Derry and Antrim]
UMC9S Hayer Ireland
Y8DPA Higgins Galway, Ireland


Known NPEs/Adoptions/Surname Changes

2JU2V Slotnick Unknown
EAU62 Soakell Unknown
P772N "Foster" St. Martins, New Brunswick, Canada
W9TPC Bennett (Adopted) Unknown
XTCJA Wilson Scotland [adopted name]
XF6U7 Towne Great Yarmouth, England [paternal may be Carroll]

Unclear Origins

GQUHW Currie Scotland
KKG3H Curry Unknown
[McLysaght: O'Corry in Ireland; Currie in Scotland
Clare and Westmeath]
7SX8W McKenzie Nanton, Alberta, Canada
[McLysaght - can be the form of many names, Irish
and Scottish, including McKinney]

Other Surnames

6FDG7 Moore South Carolina, USA
J8Y2R Montgomery Unknown
S45BE Donald Paisley, Scotland
VAV6R Burns Scotland
XQVDF McDaniel Bedford, Pennsylvania, USA


The most striking thing about DYS 447 = 24 in R1b1c7 samples (to me at
least) is that random mutations appear to have almost entirely bypassed Scotland
and England at this marker. There are very few surnames in this list with
origins in Scotland compared to the great majority of origins in Ireland, the
greatest percentage of which are in NW Ireland. 28 or just over half of the
surnames are known Donegal-Tyrone surnames or surnames that can be found in
those counties. The sample is obviously overweighted by McLaughlins with DYS
447 = 24. But the same marker also occurs in Dohertys, another Donegal sept,
who shared the same small part of Donegal (Inishowen Peninsula) with the
McLaughlins for over 700 years. The Gallaghers were kin to the Dohertys; the
Neills in the list may be R1b1c7 O'Neills. The Donley/Donnelly samples are most
likely O'Donnelly, a Cenel Eoghain sept from neighboring Tyrone related to
the McLaughlins.

Why is this relatively rare mutation (DYS 447 = 24) appearing so strongly
among R1b1c7 in NW Ireland, especially in Donegal and Tyrone? Why do we not
see it in any Galloway surnames in Scotland? Or in surnames from the
lowlands, of which there are many?

If it's just a random family mutation (as in the case of the McLaughlins)
why do we also see it in a few related families (and some with geographical
proximity) but almost nowhere else? But if this means anything why isn't it
more prevalent in these related families?

Why is the DYS 447 = 24 marker to be found in the Wilson sample that
tested M222 negative? Possibly a pre-cursor to R1b1c7?

I'm not trying to prove anything here one way or the other. Just trying to
understand what this odd marker really means in R1b1c7.


John









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