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Archiver > GENEALOGY-DNA > 2005-11 > 1133208212


From: charles <>
Subject: Re: [DNA] YSNP testing, hobby scientist forces, convergence, andback mutation issues -- to YSNP or not to YSNP
Date: Mon, 28 Nov 2005 15:03:32 -0500
References: <IGEOKAGLHNEKPCKPADIGCEHBKOAA.bbailey.lowedna@baileyconnection.com>
In-Reply-To: <IGEOKAGLHNEKPCKPADIGCEHBKOAA.bbailey.lowedna@baileyconnection.com>


Bill:

John Chandlers salient advice you refer to applies even more so with YSNPs.

With the current resolution of YSNP testing, and for the foreseeable
future in my opinion, YSNPs can only be used to prove who is NOT related
to and cannot be used to prove any genealogically recent kinship (the
last 500-1000 years) whatsoever for a genetic genealogy surname project.
People who share the same "haplogroup" and YSNP test results at this
point are typically in a group of people shared by many millions.

High resolution genetic genealogy YSTR tests, 37/43 markers, and other
traditional genealogy evidence are needed to prove kinship in a
traditional genealogy sense. I know that and I think most people who
have run a surname project for the last few years know that too.

Right now its plain and simple. If you want to learn about your "Deep
Ancestry / Anthrogenealogy" take a Y-SNP test. If you want to learn much
greater details about your recent traditional genealogy kinship, take a
37/43 marker Y-STR test and combine it with your traditional evidence in
a surname project.

The differences in the uses of these two tests are like apples and
oranges because the two tests are as different as apples and oranges,
both scientifically and in resolving power.

Newbies need to be told the differences and what information is gleaned
from each type of test and who is benefiting the most by taking such
tests. With full disclosure of these test purposes to newbies and
surname project participants, I am all for more Y-SNP test to further
our scientific knowledge. I even started a Y-SNP database to put the
results in:
http://groups.yahoo.com/group/DNA-ANTHROGENEALOGY/database

But we don't want to confuse newbies and have them think that a Y-SNP
test can definitely prove kinship, either. It cannot. And it is even
less effective at that than any typical modern YSTR test is.

Charles Kerchner
http://www.kerchner.com/kerchdna.htm

Lowe DNA wrote:
> I always remember John Chandler's salient advice to me... STRS can NOT
> determine kinship, however the can determine who is NOT related.


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