y picture detected in Argentineans underscores the need to apply ASDM from all three genetic systems to infer geographic origins and genetic admixture. This applies to all worldwide areas where people with different continental ancestry live geographically close together.
I’ve outlined a reasonably plausible model for how this situation came out before. Strong male bias in European settlement and immigration. This would naturally result in the persistence of maternal indigenous ancestry, while at the same time contributing to the dominance of European ancestry. Dienekes points out:
European ancestry in mtDNA (44.3%) and Y-chromosome (94.1%) gives an estimate of 69.2%, compared to 78.6% for autosomal markers. Native S. American in mtDNA (53.7%) and Y-chromosome (4.9%) gives an estimate of 29.3%, compared to 17.28% for autosomal markers. Finally, African mtDNA (2%) and Y-chromosomes (0.9%) gives an estimate of 1.45% compared to 4.15% for the autosomal markers.
If one assumes serial matings between ...
