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New 2019 Autosomal Argentine study focused in the Patagonia (South)
https://www.biorxiv.org/content/10.1101/586610v1.full
Genetic admixture patterns in Argentinian Patagonia
Samples 433
46 AIMs
Regional Results
Patagonia--------------- 433 Samples 62.1% European 35.8% Native American 2.1% African
Puerto Madryn ---------145 Samples 74.9% European 23.1% Amerindian 2% African
Trelew------------------- 91 Samples 65.3% European 32.6% Amerindian 2% African
San Carlos de Bariloche 88 Samples 58.7% European 39.5% Amerindian 1.7% African
Esquel -------------------56 Samples 45.3% European 52.4% Amerindian 2.3% African
Comodoro Rivadavia----53 Samples 45.2% European 52% Amerindian 2.7% African
Individuals with 4 Grandparents born in the same region
Europe-------------12 Samples 96.8% European 1.4% Amerindian 1.2% African
Center Argentina--20 Samples 85% European 14.7% Amerindian 0.7% African
Chile---------------25 Samples 37.4% European 60.5% Amerindian 2% African
South Argentina--18 Samples 36.9% European 61.9% Amerindian 1.1% African
North Argentina--10 Samples 26% European 71% Amerindian 3.1% African
Autosomal ancestry map with this Patagonia results plus other region results from the same investigation team
Green Euro
Blue Native American
Red African
Individual results of this Patagonia Sample
Interestingly, the southern region scoring the highest euro (Puerto Madryn) is the region with more Central Region and European Grandparents.
Origin of Grandparents
Maps of Argentina and Chile showing the distribution of Native American (A), European (B) and African (C) individual ancestry estimated in individuals who inhabit in Argentinian Patagonia.
The birthplace of the individuals and the density are indicated by red dots (D).
UPDATE:
I did this with the lastest genetic studies done in Argentina including this one
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