Archiver > GENEALOGY-DNA > 2006-12 > 1165788229

From: "wim callewaert" <>
Subject: Re: [DNA] age estimations (TMRCA and ASD)
Date: Sun, 10 Dec 2006 23:03:49 +0100
In-Reply-To: <BAY105-F6E45A590743F81E9703DECCD10@phx.gbl>

Here's a link to the results of John McEwan: look in table 1

I calculated for E3b1 only and came to some 7,500 years, but that was a very
small sample, so don't take it for granted.

-----Oorspronkelijk bericht-----
[mailto:] Namens Steven Bird
Verzonden: zondag 10 december 2006 22:22
Onderwerp: Re: [DNA] age estimations (TMRCA and ASD)


Looks like we're in the ballpark for M-78 (E3b1). The upper range of your
ASD calculation overlaps with that of Cruciani, noting that Cruciani did NOT

give his generational age distance in the paper in question (at least I
didn't see it there.)

My calculation for the smaller set of E3b haplotypes (from YSearch) used a
generational distance of 25 years, so it is still somewhat "shorter" than
your calculation at the same distance. (16,842 vs. 21,239 ybp). This is
undoubtedly due to the assumed preponderance of E3b1 (alpha) in my YSearch
data set, which appears to be shortening the average somewhat. The E3b
Project has substantially more E3b2 and E3b3 results, no doubt. Also, they
will have more individuals with E3b1(beta) and (gamma) clusters, remembering

that E3b (M35) includes all of these geographically distinct subclades and

Funny, if E3b1 is 23 KYA, and the alpha cluster showed up in the Balkans
about 8000 years ago, I wonder what they were doing in between? Supposedly,

they had a leapfrog migration through Anatolia, not a real settlement there.

Were McEwan's results also with E3b?


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