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Native American Autosomal Marker

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Last week Family Tree DNA announced a new autosomal marker that is known to exist strongly in the Native American population. It is found in 31.7%, per the article below.

Here is what this means for you, should you choose to test. If this marker tests positive, then you do have Native Ancestry. If this markers tests negative, then you still don't know, because this is only present in 31% of the folks tested today that are known to be native. Remember, our friend, recombination, may remove this marker during the meiosis process. So what's the best case - you confirm your native heritage. And the worse case - you spend $15 and still don't know. (I think there is also a $9.50 setup charge if your DNA is not already in the Houston Lab (versus the Arizona lab). 

So, assuming you are already a customer, log on to your personal page. Click on "Order Tests and Upgrades", then click on "Advanced Orders", then scroll way down to Autosomal Panel 3 and look all the way to the right for D9s919.


Roberta (see article below) 

 

My redraw of White's art




The three-wave migration hypothesis of Greenberg et al. has permeated the genetic literature on the peopling of the Americas. Greenberg et al. proposed that Na-Dene, Aleut-Eskimo and Amerind are language phyla which represent separate migrations from Asia to the Americas. We show that a unique allele at autosomal microsatellite locus *D9S1120 is present in all sampled North and South American populations, including the Na-Dene and Aleut-Eskimo, and in related Western Beringian groups, at an average frequency of 31.7%. This allele was not observed in any sampled putative Asian source populations or in other worldwide populations. Neither selection nor admixture explains the distribution of this regionally specific marker. The simplest explanation for the ubiquity of this allele across the Americas is that the same founding population contributed a large fraction of ancestry to all modern Native American populations.

More here:

http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2375964 

*D9S919 was formerly called D9S1120.

From: Thomas Krahn < thomas@familytreedna.com
Subject: Re: [DNA] New tests on our personal pages D9S919, etc....????? 
Date: Fri, 18 Jul 2008 11:00:44 -0500 

We have included D9S919 into our newest autosomal STR panel because it 
has an interesting very short allele within the Native American 
population [1]. Note that this marker was previously published under the 
name D9S1120 [1], but this name was officially depreciated because it 
was the same marker as the older D9S919.

Thomas

[1] Schroeder et al. "A private allele ubiquitous in the Americas" Biol 
Lett. 2007 April 22; 3(2): 218-223.
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2375964 
(use your favourite search engine to find the full text pdf on the web)

http://archiver.rootsweb.ancestry.com/th/read/GENEALOGY-DNA/2008-07/1216396844 

 


Bear clip art from: http://www.firstpeople.us/FP-Html-Clipart/NativeClipart_pg1.html 



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Copyright 2008 Last modified: October 10, 2010