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Archiver > GENEALOGY-DNA > 2011-01 > 1293969367


From: Vincent Vizachero <>
Subject: Re: [DNA] How old is Y-Chromosome Adam?
Date: Sun, 2 Jan 2011 06:56:07 -0500
References: <mailman.255.1293782436.1099.genealogy-dna@rootsweb.com><3203DE795D7E4D24B6A24928379E156E@anatoldesktop><AANLkTi=F+O4hFtK900wWetyKtfjzJB90r_CYi+5cc8h8@mail.gmail.com><3494E649-D554-4BFA-A206-80C054DBB9B6@vizachero.com><19954443.178870.1293883908917.JavaMail.www@wwinf2233><004001cba9d5$b0498ed0$c2482dae@Ken1><C4D1EA69-E1DC-4EB2-8F2C-E97B0E9971F3@vizachero.com><005a01cba9dc$a6a96650$c2482dae@Ken1><5E0F95F0B965408DB2815855E6B42C45@lop><AANLkTimVz4+h41_r+ZwEv+zhaWaOaVWO8Kf0xih-fV2t@mail.gmail.com><00f901cbaa01$d1a63110$c2482dae@Ken1><AANLkTimQxMy8g-wVgiqzp-4SiQ9RAVBs0PGq+BTjJbAx@mail.gmail.com>
In-Reply-To: <AANLkTimQxMy8g-wVgiqzp-4SiQ9RAVBs0PGq+BTjJbAx@mail.gmail.com>


This is true as far as it goes, though your message is systematically
framed in a manner that seems designed to besmirch the integrity of
somebody (I can't quite figure out who).

The differential estimates between fast and slow markers have been
noted and discussed on this list for several years. Reasonable
theories have been advanced to explain the effects. Practical and
theoretical methods have been proposed to deal with the effects
(sometimes with controversy). That's what ultimately led the post by
Tim which was the sole source in your blog post to begin with.

Not everyone reads this list or pays attention to this topic, and I
don't blame them. But I hope you are not trying to imply that there
is a general movement in the genetic genealogy community to ignore
nuances like this, because there isn't. Especially given the fact
that members of this list have worked harder than anyone to expose and
discuss them.

VV



On Jan 2, 2011, at 5:13 AM, Dienekes Pontikos wrote:

> In sort, this has confirmed to me that age estimates of Y-chromosome
> Adam depend on the particular markers and "mix" of fast- and slow-
> evolving markers one uses.


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