|
What is our project?
The R-L21
South Irish Project was created to identify the specific unique SNP's
that characterize the cluster, as well as match family histories to
their mutation from the South Irish haplogroup. The original markers of the South Irish
were identified by Dr.
Kenneth Nordvedt.
The age of the South Irish
cluster is:
1640 ybp +/- 233 years according to
Alex Williamson
1400 ybp +/- 190 years according to Anatole
Klyosov
- "I
think it particularly valuable in that I have the suspicion
Ireland was peopled multiple times, with the flows into the
island centuries if not millennia apart in time. So these
different clades within R1b..... found in Ireland, along with
the smaller haplogroup I clades found in Ireland may be
expressions of these multiple immigrations".
-
- Dr. Ken Nordvedt 3/15/2011
Our work will focus on understanding all
the haplogroups of Eoganacht surnamed descendants (to understand the
many origins of those who called themselves the Eoganachts) with a
concentration on the South Irish.
Kathleen
Sullivan Kerwin, administrator
Who is eligible to
join: Close GD to South Irish, Ysearch Z9HCX, and Dr. Nordvedt's
baseline: 391=10, 385b=15, 439=11, 447=24, 456=15, 442=13, 635=24(a.k.a.
GATA-C4, a non-FTDNA marker) 390=24, 458=17, 449=29, H4=11, 565=11
You do not have to be a
member of a particular lab to join.
STR Analysis: We
use str haplogroup analysis along with Deep Clade and SNP testing to
determine a member's haplogroup. STR haplogroup analysis is based on
theory and may be used to predict Deep Clade or SNP grouping, however
only Deep Clade or SNP testing can confirm a members haplogroup.
DNA results less than 67 markers are inaccurate. If you wish to
improve the accuracy of your predictive results, upgrade to at least 67
markers.
How will this
project identify the South Irish?
Donors that have been tested for 58 markers
(multi-allele version of 67 markers) and a GD
-
less than or equal to 10 GD
of the 58 marker South Irish and
-
less than or equal to 3 GD of
Dr. Nordvedt's 12 marker South Irish
We're using a decision tree
based on slow moving markers to find families based on their
MRCA then adding the fast moving markers to identify
branches (not sure how to handle the medium markers). This
information will then be applied when the unique South
Irish SNP is found (and test donors take this SNP test) with
adjustments made to testing criteria and conclusions as
necessary.
Surnames
included (not an inclusive list, surname list
in progress – please send us a list of surnames to add):
Cahalane, Connelly, Hayes,
Lynch, MacAuliffe, MacCarthy, McCarthy, McCarty, MacGillicudy,
Mongan,O'Bogue, O'Callaghan, O'Cannifree, O'Cohalane/O'Coughlan,
O'Connell, O'Cronin, O'Dennehy, O'Donnell, O'Donoghue, O'Duggan,
O'Feehan, O'Flahiffe, O'Flynn, O'Keefe, O'Kirby, O'Leary, O'Long,
O'Mahoney, O'Moriarty, O'Neill, Sullivan
ClanCAREY surnames (e.g.,
Carey, Cary, Carry, Carrie, Carew, Kerry,Kery, Kerrie, Kerey and the
Ancient Spellings of O'Chairda and O'Cairdha)
O'Donoghue, Donaghoe,
Donoughe, Donaho, Donahoe, Donough, Donahue, Donahow, Doneghoe, Donehue,
Donighue, Donoho, Donohoe, Donahugh, Donohough,Donohow, Donohue,
Donaughue, Donaghie, Donaghy ...
Bryan, Burns, Clary, Givens, Irwin, McKenna, O'Shea, Reagan,
Desmond, Hughey, Fitzgerald, O'Connor, McRay, O'Keefe, McLennan,
Mihigan, Hennessey, Towey, O'Kane, Coghlan, Allen, Seal, Kelly, Kenty |
Related projects:
-
FTDNA South Irish Project
-
FTDNA Eoganacht sept Project
-
Eo'ganacht septs Project
What's New:
The size of our results lists are quite large at this
point so that updates will be published less often with much more
detail. Current Research:
- results (haplogroup and close matches):
- Case Studies
- Sullivan Project
- O'Mahoney
- O'Connell, O'Shea, O'Donoghue
Other Case Studies
methodology for case studies
- MCRA - determining mutation rates
- Building phylogenetic trees
- Building family trees and branches
updated May 2, 2011: Insight into SNP testing by Alex Williamson
"SNPs are rare. There
is nothing special about when
they occur. Just one man in history acquires a mutation his father
didn't have. He doesn't have to go on to found any great clusters,
etc. A SNP may occur before an STR cluster, and include slightly more
than we might "want", or it may occur inside a cluster, and include less
than what we "want". That many of the SNPs we found so far just happen
to fit exactly with an STR cluster, isn't because of a special
relationship between clusters and SNPs, instead, it is because of
something special about the real world history of many of the clusters
we've identified so far.
I have no doubt that a SNP corresponding to the bulk of the South Irish
will be found. As far as I know, only a small fraction of the
Y-chromosome has been carefully examined for SNPs thus far. New tests
are always being developed to look at more and more of the Y. It is
just a matter of having the right spot examined to find your SNP. It
just hasn't happened yet.
There aren't necessarily any good or bad candidates. Ideally, all of
your South Irish men will either have the SNP or they won't. It is
possible as I've alluded to above that you might find a SNP that will
include only a fraction of your South Irish men, or perhaps it will
include a larger piece of R-L21 which includes the South Irish. The
Scots cluster is a very large R-L21 cluster, and it doesn't have an
associated SNP yet, despite attempts to find one. Recently a SNP has
been found which looks to identify a part of the Scots cluster, but not
all of it.
There is no reason why one hasn't been found for the South Irish men
yet. Many men have tried to find SNPs for various groups, some found
them, most did not. There is a lot of Y-DNA however, so there is still
plenty of potential for the future. What you need to do is keep
trying. Don't try right away though, give some time for new tests to be
developed, then try again. Eventually it will just happen."
|