Geographic Structure in Gran Chaco Amerindians Based on Five X-Chromosome STRs

CECILIA I. CATANESI, PABLO F. MARTINA, GUILLERMO GIOVAMBATTISTA, PEDRO ZUKAS, AND LIDIA VIDAL-RIOJA

HUMAN BIOLOGY

WAYNE STATE UNIV PRESS

Lugar: Wayne State University Press, Detroit, Michigan 48201-1309; Año: 2007 vol. 79 p. 463 - 474

0018-7143

We investigated the genetic differentiation of five X-chromosome STR markers among five native South American Amerindian populations inhabiting three different areas of the Gran Chaco: Mocoví, Chorote, Wichí, Lengua, and Ayoreo. The observed genetic structure showed correspondence with geographic distribution more clearly than previous information obtained from autosomal STRs for the same samples. On the other hand, X-chromosome STR data did not agree with linguistic affinities. These markers proved to be informative for the study of the native populations of the Gran Chaco region.