Friday, November 23, 2007

Maya STRs

This article abstract is for early view article from AJPA. This is actually a fairly important article as few studies have investigated the genetic structure of Mayan populations even though as the abstract says there are 7.5 million living inhabitants speaking 28 languages throughout Central America. The typical view of individuals is to assume that the Maya are an extinct culture and not a modern vibrant culture that is suffering from a number of hardships suffered by indigenous groups throughout the region.

Delineating genetic relationships among the Maya
Lisa Ibarra-Rivera, Sheyla Mirabal, Manuela M. Regueiro, Rene J. Herrera

Abstract
By 250 AD, the Classic Maya had become the most advanced civilization within the New World, possessing the only well-developed hieroglyphic writing system of the time and an advanced knowledge of mathematics, astronomy and architecture. Though only ruins of the empire remain, 7.5 million Mayan descendants still occupy areas of Mexico, Guatemala, Belize, El Salvador, and Honduras. Although they inhabit distant and distinct territories, speak more than 28 languages, and have been historically divided by warfare and a city-state-like political system, and they share characteristics such as rituals, artistic, architectural motifs that distinguish them as unequivocally Maya. This study was undertaken to determine whether these similarities among Mayan communities mirror genetic affinities or are merely a reflection of their common culture. Four Mayan populations were investigated (i.e., the K'iche and Kakchikel from Guatemala and the Campeche and Yucatan from Mexico) and compared with previously published populations across 15 autosomal STR loci. As a whole, the Maya emerge as a distinct group within Mesoamerica, indicating that they are more similar to each other than to other Mesoamerican groups. The data suggest that although geographic and political boundaries existed among Mayan communities, genetic exchanges between the different Mayan groups have occurred, supporting theories of extensive trading throughout the empire. Am J Phys Anthropol, 2007. © 2007 Wiley-Liss, Inc.

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