Luiza T. Tsuneto

TL;DR: Evidence is observed of a higher level of diversity and lower level of population structure in western South America compared to eastern South America, a relative lack of differentiation between Mesoamerican and Andean populations, and a partial agreement on a local scale between genetic similarity and the linguistic classification of populations.

TL;DR: An analysis of admixture in thirteen Mestizo populations from seven countries in Latin America based on data for 678 autosomal and 29 X-chromosome microsatellites found extensive variation in Native American and European ancestry among populations and individuals and evidence that admixture across Latin America has often involved predominantly European men and both Native and African women.

TL;DR: Age estimates based on Y-chromosome microsatellite diversity place the initial settlement of the American continent at approximately 14,000 years ago, in relative agreement with the age of well-established archaeological evidence.

TL;DR: A better picture is provided of Paraná's ethnic constitution and on the Amerindian contribution to the white and mulatto populations.

TL;DR: On the basis of genetic distance and the HLA allele/haplotype set, it is proposed that the Aché are differentiated Tupi-Guarani group, most closely related to the Guarani-M'byá.