Demographic and evolutionary trajectories of the Guarani and Kaingang natives of

MARRERO AR; SILVA-JUNIOR WA; BRAVI CM; HUTZ MH; PETZL-ERLER ML; RUIZ-LINARES A,; SALZANO FM; BORTOLINI MC

American Journal of Physical Anthropology

Wiley-Liss

Año: 2007 vol. 132 p. 301 - 310

A total of 278 individuals from two Brazilian Indian tribes (Guarani andKaingang) living in five different localities had their mitochondrial DNAsequenced for the first hypervariable segment (HVS-I), and a fraction of themwas also studied for seven biallelic Y-chromosome polymorphisms. Nineteen HVS-Ilineages were detected, which showed distinct distributions in the two tribes.The G(ST) value obtained with the mtDNA data is about 5 times higher for theGuarani as compared to the Kaingang, suggesting a higher level ofdifferentiation between the three Guarani partialities than between the twoKaingang villages. Non-Amerindian admixture varied with sex and in the Guaraniwas only observed through the paternal line. Using these data and those of otherTupian and Jean tribes, it was possible to make inferences about past migratorymovements and the genetic differentiation of these populations.