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Archiver > GENEALOGY-DNA > 2006-11 > 1164656788


From: "Eric Olson" <>
Subject: Re: [DNA] SNP and STR testing for R1a
Date: Mon, 27 Nov 2006 11:46:28 -0800


I begin to see your point. My mind-set, if that is what it is, arises out
of my experience in discovering an actual cousin who did 12 markers with
Genographic, and we matched 12/12 on that panel. Same surname also, of
course. I suppose it is possible to grossly mismatch on the first panel of
12, but match from there on out. although I think that is very improbable.
My problem is not in discriminating between near-matches, but in finding
them. This is R1a, not R1b.

For example the three men you cited at a genetic distance of 9/37 from me
each have 3 (different) mismatches from me in the first 12 markers. When I
search YSearch I usually set the search parameters to allow for 2
mismatches out of 12. Therefore these three don't show up. While it is
interesting that they cluster geographically in Central Europe, they don't
enlighten my genealogy, which is the reason I am here..

I did contact the Kolnic unit privately last year and he agreed to do more
markers and send me the results. That is when the apparent match fell
away. I practically begged him to post his extended markers to YSearch,
but that hasn't happened. Incidentally FTDNA homepage lists 4 12/12
matches; my cousin, Kolnic, and two others with central European sounding
names and email addresses. I have not contacted them as there is no
similarity of surname. Kolnic is the only one who posted any results to
YSearch. Cousin posted only to the Carroll Y-DNA Project at FTDNA.

Cheers,
Eric Olson


> [Original Message]
> From: Lawrence Mayka <>
> To: <>; <>
> Date: 11/27/2006 12:54:53 AM
> Subject: RE: [DNA] SNP and STR testing for R1a
>
> > [mailto:] On Behalf Of Eric Olson
> > But I am puzzled why 9/37 matches on STR's can be considered
> > more "good clustering" than 11/12 matches.
>
> I mean that the three men I cited show, on Ysearch, a genetic distance of
9
> from you, when considering your full 37 markers. My point is that you
have
> 37 markers, not just 12--you may as well use them to discriminate between
> near-matches.
>
> > An accidental convergence may or may not have happened with
> > the 12/12 K3P89 Slovakian match on the first 12 FTDNA
> > markers, but the concordance rapidly dissipated upon Kolnic
> > upgrading to more STR markers.
>
> Kolnik only has 12 markers on Ysearch. Does he have more than that posted
> elsewhere? I don't see him listed in the Slovakia Project. Did you
> correspond with him privately?


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