Here a new study that is interesting because its from 2 northwest provinces. It tested paternal contribution and its mostly european. They didnt test mtdna (maternal ancestry) but its probably amerindian creating mestizos.
Notice that there is a huge difference between this Colonial mestizo regions and more indomestizo regions like jujuy or Bolivia where a significant part of the population will have amerindian ydna.
https://revistas.unlp.edu.ar/raab/ar...oad/5263/6563/
VARIABILIDAD DE LINAJES PATERNOS EN DOS POBLACIONES DEL NOROESTE ARGENTINO: SANTIAGO DEL ESTERO Y TUCUMÁN
VARIABILITY OF PATERNAL LINEAGES IN TWO POPULATIONS FROM THE ARGENTINIAN NORTHWEST: SANTIAGO DEL ESTERO AND TUCUMÁN
They only studied paternal contribution (ydna).
Samples 283
Ancestral Paternal Contribution for both provinces
89% Euroasiatic (mostly r1b1 typical spanish haplogroup)
7% Native American (Q1b1)
4 % African (the african haplogroup E1b1 can also be european or middle eastern)
Santiago Del Estero Public Hospital 8.8% Native American Paternal Ancestry
Santiago del Estero Private Hospital 1.8% Native American Paternal Ancestry
Tucuman Public Hospital 8.6% Native American Paternal Ancestry
Tucuman Private Hospital 9.7% Native American Paternal Ancestry
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