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Archiver > GENEALOGY-DNA > 2006-12 > 1166885360


From: Vincent Vizachero <>
Subject: Re: [DNA] Frequencies for 459 Unique R1b Iberian Origin Haplotypes
Date: Sat, 23 Dec 2006 06:49:20 -0800 (PST)
In-Reply-To: <e2f96c1b0612222304t21ae6364md9e7388363d75217@mail.gmail.com>


Robert Tarín <> wrote:
I know that a modal, in this case the AMH, does not necessarilly represent the haplotype of the founder but does this indicate a bottleneck population or a relatively young group? I know we have to take these figures with a grain of salt. . . . .
It is probable that your age estimates represent some combination of non-linear population growth.

Something close to the maximum distance you found (using the methodology I think you used) likely represents a lower bound on the age of the founding for the group. The degree of uncertainty would be huge, but constructing a phylogeny for the group might give you more insight into the population structure.

The average number you found likely represents some approximation of the age of the most recent vigorous population expansion of the group.

I don't know what you would conisder to be a "young group", but your data would suggest that founding of this population is is much closer to 7,500 years ago ( and possibly much longer ago than that) than it is to 2,500 years ago.

Vince

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