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Archiver > GENEALOGY-DNA > 2003-12 > 1070404966


From: Shane <>
Subject: Re: [DNA] Irish versus Norwegian R1b Signatures
Date: Tue, 02 Dec 2003 16:47:19 -0600
In-Reply-To: <20031201170116.54236.qmail@web41209.mail.yahoo.com>


I just did a little test using my exact matches from the Y-STR database. I
printed out their map then marked the top seven locations based on their
frequency in the test populations. I choose seven as my stopping point
because after that the percentage of matches drops off. I know this is far
from scientific, but what the heck.

As most know, the main weakness of the Y-STR database is its limited number
of markers used. But, significantly I think, it does include a couple that I
have less typical scores for: 10 for 391 and 30 for 389ii. Since all my
other scores applicable to Y-STR are straight AMH, I thought the results
might be indicative of something.

In order of frequency within tested group, the results were:

Norway South 1 in 25
Belkinge Sweden 1 in 40
Skarabourg Sweden 1 in 43
Strasbourg 1 in 49.5
Norway West 1 in 64
Graz 1 in 65
Westphalia 1 in 65.3

Plotted on the map, the results are kind of interesting. There's a group to
the north in Scandinavia. And a less well defined group in the south
stretching from east central France (Strasbourg) southeasterly to Tyrol and
ending in Graz. Sandwiched between these two loose clusters is the
Westphalia match.

If I were going to try to explain the results historically, my best guess
would be the Scandinavian groups and Westphalia fall under the Germanic
tribes. Less clear cut is the southern group, but mostly likely
representative of ancient Celtic heritage. However, they could be the
remnants of the Gothic migrations as well. Flip a coin on Strasbourg, it
could be Celtic or Germanic. Coincidentally, this location isn't too far
from where Vercingetorix fought his final battle against Caesar, so I'll
vote Celtic.

One thing that does seem interesting is how the South Norway percentage is
considerably higher than the other results. It will take a lot more data to
see if this pans out as a legit ancestral possibility. Of course, I guess
that is true with all of it.

Happy guessing,

Shane





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