Genetic Evidence Supports the Multiethnic Character of Teopancazco, a Neighborhood Center of Teotihuacan, Mexico (AD 200-600)

Genetic analysis of ancient DNA (aDNA) from Teopancazco, a neighborhood center within the Pre-Hispanic City of Teotihuacan, reveals that multiethnicity was a defining feature of its population from AD 200 to 600. The study, combining mitochondrial DNA (mtDNA) data with stable isotope and paleodietary analyses, identifies three distinct population groups: locals from Teotihuacan, residents from nearby regions like Tlaxcala-Hidalgo-Puebla, and individuals from distant areas including coastal plains. This genetic diversity persisted across Teopancazco's history, though a genetically differentiated group emerged during the Transitional phase. The research also suggests neolocal post-marital residence patterns in adults but highlights greater male heterogeneity among infants, hinting at sex-specific cultural practices. Comparisons with other heterogeneous native groups and populations from the 'Teotihuacan corridor,' Oaxaca, and the Maya region further support Teopancazco's multiethnic character, aligning with archaeological evidence.

Álvarez-Sandoval, B. A., Manzanilla, L. R., González-Ruiz, M., Malgosa, A., & Montiel, R. (2015). Genetic Evidence Supports the Multiethnic Character of Teopancazco, a Neighborhood Center of Teotihuacan, Mexico (AD 200-600). Plos One, 10(7), e0132371. https://doi.org/10.1371/journal.pone.0132371