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Archiver > GENEALOGY-DNA > 2009-05 > 1243105403


From: "Ken Nordtvedt" <>
Subject: Re: [DNA] NPE
Date: Sat, 23 May 2009 13:03:23 -0600
References: <1323176183.13148871243102638055.JavaMail.root@sz0093a.westchester.pa.mail.comcast.net>


That old node I used could be 48,000 years ago, but still the apparent rate
is still 50 percent greater than original assumption. As usual, the results
from ftdna seem late coming, but this is a new kind of test so probably
novel bugs have to be worked out.

Ken

> Well, you may get your wish and our wish. It seems the total y covered
> only
> 25 million positions of the y, instead of all of it when chalking up those
> 2650 differences between an I donor and a R/G donor HUGO.
>
> If we assume the split between I and R/G on average occured about 36,000
> years ago I get an average mutation rate of
> 4 / 100 million. That's twice what I have been assuming for walk the y
> output volume.
>
> We could be pleasantly surprised.
>
> That would be nice. Sometimes when I am thinking about this stuff, I
> realize that I don't have a very good understanding of how those old node
> ages have been calculated.
>
> Kirsten



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