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Archiver > GENEALOGY-DNA > 2006-06 > 1151610922


From: "Alfred A. Aburto Jr." <>
Subject: Re: [DNA] Re: Y haplogroup J in Iran
Date: Thu, 29 Jun 2006 12:55:22 -0700
References: <44A408E8.9080009@worldnet.att.net>
In-Reply-To: <44A408E8.9080009@worldnet.att.net>


You're welcome Jim,
I haven't heard of that paper regarding the origin of J1 in Iran.
Clearly Iran is a "hot spot" for J1 and J2 though (mostly J2). They do
speak of the central deserts of Iran as barriers, and the Strait of Bab
el Mandab ("The Gate of Tears") as a conduit, to population movements.

Yes, there is nothing new in the paper, except they are adding to a
growing database of knowledge. I sent what I posted to Dr Herrera (one
of the authors) and she said it would be very difficult to increase the
sample size. I guess I am a little naive regarding the effort involved
in obtaining the samples. She did say they were working on Y-STR data. I
hope I helped them decide which STR markers would be useful :-) (I doubt
it). Regardless, I look forward to seeing their Y-STR analysis.

Regarding J1, here is what was said: "The Iranian corridor may have been
vital in the dissemination of groups from the west. Haplogroup J1-M267
characterizes African and Arabian populations, with a decreasing
frequency northwards. Previous studies have documented relative high
frequencies for this lineage in areas of Oman (38%), Iraq (33%), Egypt
(20%), Lebanon (13%), and Turkey (9%). The lineage is represented in
Iran at similar levels for the north (9.09%) and south (11.97%)." So
Oman might be the source of J1?? and just across the Gulf of Oman lies
south Iran. Well, all very interesting of course.

Regarding J2 they say: "J2-M172 is believed to have expanded from the
Fertile Crescent to Europe during the demic diffusion of Neolithic
farmers. J2 and its derivatives are equally represented in neighboring
populations of Iran (23%) and Turkey (22.2%). Its influence in northern
Iran (24.2%) is comparable to southern Iran (23%). A decrease in the
frequency of J2 can be seen east of the Iranian Plateau in South
Pakastan (18.7%), with a dramatic decline in north Pakastan (4.7%)."

I'll send you this article. It is a good one to study and think about ...
Al


> James A. Honeychuck wrote:

> Al,
>
> Thanks very much for that summary.
> I thought there was an upcoming paper which would address the question
> of whether J1 originated in Iran. Anyway, if I'm reading the summary
> correctly, that paper presents no evidence to dispute the generally
> held view that J1 originated further west in the Fertile Crescent.
>
> Jim
> J1


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