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Archiver > GENEALOGY-DNA > 2007-02 > 1170996534


From: Vincent Vizachero <>
Subject: Re: [DNA] 3 DIFFERENCES OUT OF 67 MARKERS -Significance?
Date: Thu, 8 Feb 2007 22:48:54 -0600
References: <59b617a00702081859w16a14646uac82d484fbc41bc9@mail.gmail.com>
In-Reply-To: <59b617a00702081859w16a14646uac82d484fbc41bc9@mail.gmail.com>


On Feb 8, 2007, at 8:59 PM, MaryJo Neyer wrote:

> Can we make any rough mathematical calculations as to
> when that common ancestor lived?

Yes, roughly.

From the Y-Results page groupings, it is clear that Group 1, Group
2, and Group 8 all share a recent common ancestor.

It would appear that the I1c line of the Talley family has
encountered two separate RecLOH events since the founding.

One partial RecLOH event separates Group 1 from Group. DYS464 has
changed from 11-14-14-15 to 11-11-14-14 (or possibly, but less
likely, the reverse). But this was probably a single event.

Another event separates Groups 1from Group 8 (assuming the paper
trail connecting kits 41449 and 30586 is correct), and this one is a
more expansive RecLOH event affecting DYS459, DYS464, and CDY but
still counts as a single mutation.

This is a complex situation to analyze mathematically, for lots of
reasons. Based strictly on the DNA, I don't know if you will be
able say more than that your founding I1c Talley probably lived 250
to 500 years ago.

Vince

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