Admixture dynamics in Hispanics: a shift in the nuclear genetic ancestry of a South American population isolate.

ABSTRACT: Although it is well established that Hispanics generally have a mixed Native American, African, and European ancestry, the dynamics of admixture at the foundation of Hispanic populations is heterogeneous and poorly documented. Genetic analyses are potentially very informative for probing the early demographic history of these populations. Here we evaluate the genetic structure and admixture dynamics of a province in northwest Colombia (Antioquia), which prior analyses indicate was founded mostly by Spanish men and native women. We examined surname, Y chromosome, and mtDNA diversity in a geographically structured sample of the region and obtained admixture estimates with highly informative autosomal and X chromosome markers. We found evidence of reduced surname diversity and support for the

SUBMITTER: Bedoya G 

PROVIDER: S-EPMC1464326 | biostudies-literature | 2006 May

REPOSITORIES: biostudies-literature