Ancient DNA in archaeological bone tools from La Ventilla, Teotihuacan: sex determination and genetic structure.
La Ventilla is a household from Teotihuacan, a great city whose people lived during Classic Period (1-700 AC) reaching a vast demographic grow. Farmers and merchants were residents of La Ventilla. Archaeological evidence has showed commercial, political and service interchanges with Teotihuacan spreading to all Mexico. We analyzed population diversity and genetic distance between La Ventilla and 11 ancient groups from Mexico. Materials from bone tools set were processed yielding ancient DNA; the protocol was made under rigorous methodology preventing contamination. The results were verified in other ancient DNA laboratory. Sex determination with amelogenin gene was compared with tool type and American mitochondrial variation. Sample consisted in 45% males and 55% females with haplogroups A (58%), B (16%), C (21%) and D (5%). A suit of cluster analysis, genetic distance and a population movement estimation showed demographic connections between La Ventilla and groups from center and south of Mexico. Discriminant analysis had two population agglomerative hierarchical clustering. We found genetic structure of 19.68% (p< 0.01). We inferred a population dynamic may be respond to gene flow and movement among La Ventilla and others place from Mexico, these processes contributed to changes in the structure of the inhabitants of Mesoamerica.
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Ancient DNA in archaeological bone tools from La Ventilla, Teotihuacan: sex determination and genetic structure.. Ana Aguirre-Samudio, Blanca González-Sobrino, Rafael Montiel, Brenda Álvarez-Sandoval, Abigail Meza-Peñaloza. Presented at The 81st Annual Meeting of the Society for American Archaeology, Orlando, Florida. 2016 ( tDAR id: 404815)
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min long: -107.271; min lat: 12.383 ; max long: -86.353; max lat: 23.08 ;