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Archiver > GENEALOGY-DNA > 2010-03 > 1268738765


From: Vincent Vizachero <>
Subject: Re: [DNA] SNPs vs STRs
Date: Tue, 16 Mar 2010 07:26:05 -0400
References: <270548.86246.qm@web111316.mail.gq1.yahoo.com>,<SNT115-W100A5F4E30C0231B9E890ACC2E0@phx.gbl>,<016301cac3e3$fe0b33e0$5e82af48@Ken1><SNT115-W196CFB24CCDD653D7C3D50CC2E0@phx.gbl> <01ba01cac3fb$87b368d0$5e82af48@Ken1><01d101cac3ff$6a024190$5e82af48@Ken1> <4B9F064E.5070206@san.rr.com>
In-Reply-To: <4B9F064E.5070206@san.rr.com>


Not necessarily.

Although I think we have a pretty good idea about the overall rate of
Y-SNP mutation, there are still some details that are less clear. One
important detail is the homogeneity of mutation rate across the
chromosome.

In Y-STRs, we know that some markers mutate more often than others.
Sometimes dramatically so and, in some ways, this is not ideal. If
the same holds true for SNPs (and it looks like it may), then back and
parallel SNP mutations could be something that has to be dealt with.

Also, there will be lineages where for four or five generations there
simply are not any SNPs happening.

STRs will be a tool that can add to the information provided by Y-SNP
testing. I think most projects are going to want to do both.

VV


On Mar 16, 2010, at 12:17 AM, Al Aburto wrote:

> What does this mean for the future, say, when we'll have the whole
> Y-chromosome sequenced at reasonable cost?
> Will Y-STRs be out?


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