Genetic continuity of West and Nuclear Mesoamerican populations
The Kircchoff’s model considers to the West of Mesoamérica like a marginalized region, recent works have contributed to contrast this hypothesis. Information of the dental morphology variation has been found on Mesoamerican populations. This article gathers the greatest number of populations of Pre-Hispanic Mexico. In the following work, samples are provided by eight West Mesoamerican groups and compared with other six samples listed in the bibliography for Nuclear Mesoamerica. For the bio-distance and clustering analysis, the Dental Anthropology System of the Arizona State University (DAS/ASU) has been used. The correlation between the geographical and genetic distance is illustrated in a genetic barriers map among populations. The results are discussed on the basis of history and dynamics of populations, taking into account other anthropological disciplines. In Early Periods there was few isolation between West and Nuclear Mesoamerican populations, and in Late Period there was no real genetic barrier or genetic discontinuity