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Origin and genetic differentiation of Three Mexican Native Groups (Purépechas, Triquis and Mayas): contribution of CODIS-STRs to the history of human populations of Mesoamerica
Martínez Cortés, G.; Nuño Arana, I.; Rubi Castellanos, R.; Vilchis Dorantes, G.; Luna Vázquez, A.; Coral Vázquez, R. M.; Canto Cetina, T.; Salazar Flores, J.; Muñoz Valle, J. F.; Sandoval Mendoza, Karla; López, Z.; Gamero Lucas, J. J.; Rangel Villalobos, H.
BACKGROUND: CODIS-STRs in Native Mexican groups have rarely been analysed for human identification and anthropological purposes. AIM:To analyse the genetic relationships and population structure among three Native Mexican groups from Mesoamerica.SUBJECTS AND METHODS: 531 unrelated Native individuals from Mexico were PCR-typed for 15 and 9 autosomal STRs (Identifiler™ and Profiler™ kits, respectively), including five population samples: Purépechas (Mountain, Valley and Lake), Triquis and Yucatec Mayas. Previously published STR data were included in the analyses. RESULTS:Allele frequencies and statistical parameters of forensic importance were estimated by population. The majority of Native groups were not differentiated pairwise, excepting Triquis and Purépechas, which was attributable to their relative geographic and cultural isolation. Although Mayas, Triquis and Purépechas-Mountain presented the highest number of private alleles, suggesting recurrent gene flow, the elevated differentiation of Triquis indicates a different origin of this gene flow. Interestingly, Huastecos and Mayas were not differentiated, which is in agreement with the archaeological hypothesis that Huastecos represent an ancestral Maya group. Interpopulation variability was greater in Natives than in Mestizos, both significant.CONCLUSION: Although results suggest that European admixture has increased the similarity between Native Mexican groups, the differentiation and inconsistent clustering by language or geography stresses the importance of serial founder effect and/or genetic drift in showing their present genetic relationships.
2013-07-02
Genètica de poblacions humanes -- Mèxic
Indis de Mèxic -- Aspectes genètics
Indis de l'Amèrica Central -- Aspectes genètics
CODIS-STRs
Native groups
Mexico
Mesoamerica
Amerindians
(c) Tots els drets reservats
Article
info:eu-repo/semantics/submittedVersion
Informa Healthcare
         

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