[Aztlan] New Research; Native Americans descended from one common founding population

[michael ruggeri]

Listeros,

An international team of scientists have compared DNA samples from  
dozens of modern day Native American and Eurasian groups. Without  
exception, the new evidence supports the single ancestral population  
theory.
The study is published in the May issue of the journal Molecular  
Biology and Evolution.
The team found a unique variant (an allele) of a genetic marker in the  
DNA of modern day Native Americans. This variant occurred in all of  
the 41 populations sampled from Alaska to Chile but was absent in all  
54 Eurasian, African and Oceanic groups studied.
Therefore, it appears that all modern Native Americans and  
Greenlanders descend from a common founding population. The allele is  
absent in other Asian populations which probably means the Native  
Americans developed this variant in isolation from Asia. The  
researchers took care to rule out all other possibilities including  
multiple mutations. This is the first large scale study to confirm  
this utilizing the DNA of both sexes.

E-Science News has the story here;
http://esciencenews.com/articles/2009/04/29/native.americans.descended.a.single.ancestral.group.dna.study.confirms

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Mike Ruggeri


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