To assess the paternal history of the Mbya-Guarani Amerindians of northeast Argentina, we examined the genetic variation in seven Ychromosome loci: the binary marker M3 at locus DYS199, and six short tandem repeats (DYS19, DYS389I, DYS389II, DYS390, DYS391, and DYS393). The most striking finding is the high frequency among the Mbya- Guaranı of Q3 lineages with the usually rare alleles DYS391*11 and DYS393*11, which could be the result of a founder effect, given the recent history of the population.
Altuna, M Eugenia; Modesti, Nidia M.; and Demarchi, Dario D.
"Y-Chromosomal Evidence for a Founder Effect in Mbya-Guaranı Amerindians from Northeast Argentina,"
5, Article 7.
Available at: http://digitalcommons.wayne.edu/humbiol/vol78/iss5/7