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Archiver > GENEALOGY-DNA > 2007-05 > 1178116675


From: Vincent Vizachero <>
Subject: Re: [DNA] DYF399X Haplotypes in R1b
Date: Wed, 2 May 2007 09:37:55 -0500
References: <6D076840-F178-47A6-9D5B-4C3CE02DD5F9@vizachero.com>
In-Reply-To: <6D076840-F178-47A6-9D5B-4C3CE02DD5F9@vizachero.com>


A small correction: my parenthetical comment on haplogroup J was
incorrect earlier. J does NOT have 3 c-type and one t-type at
DYF399X in yMatch.

Vince


On May 2, 2007, at 9:24 AM, Vincent Vizachero wrote:

> Is anyone collecting DYF399X haplotypes?
>
> I ask because I have an R1b1b sample with 22.1t-24c-26c, which
> appears to be unusual because it has two "c-type" alleles and one "t-
> type" alllele.
>
> There are 55 R1a or R1b samples in yMatch with DYF399X results, and
> they all have two "t-type" alleles and one "c-type" alleles or just
> two alleles (one c-type and one t-type).
>
> A cursory examination of other haplogroups (e.g. E3b, I, J) suggests
> that the CCT configuration is ancestral, and that that CTT
> configuration is derived for haplogroup R (haplogroup J has three c-
> type and one t-type).
>
> Since R1a apparently has the same CTT motif as R1b1c, however, the
> CCT motif for this R1b1b is curious. It must be represent a reverse
> mutation somewhere within R1b1b, and I intend to test other R1b1b
> samples for DYF399X to try and establish where.
>
> In the mean time, I'd like to hear from any R1a, R1b, or R2 with two
> c-type alleles.
>
> Vince
>
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