Editing Olmecs (section)

==DNA==
In the investigations of the San Lorenzo Tenochtitlán Archaeological Project at the sites of San Lorenzo and Loma del Zapote, several human burials from the Olmec period were found. The bone consistency in two of them allowed the study of their mitochondrial DNA to be carried out successfully, as part of an investigation that proposes the comparative analysis of the genetic information of the Olmecs with that obtained from subjects from other Mesoamerican societies under the advice of the specialists Dr. María de Lourdes Muñoz Moreno and Miguel Moreno Galeana, both at CINVESTAV in Mexico.

This pioneering study of mitochondrial DNA in 2018 was carried out on two Olmec individuals, one from San Lorenzo and the other from Loma del Zapote, resulted, in both cases, in the unequivocal presence of the distinctive mutations of the haplogroup A maternal lineage. They share the most abundant of the five mitochondrial haplogroups characteristic of the indigenous populations of the Americas: A, B, C, D and X.<ref>Genetic Affiliation of Pre-Hispanic and Contemporary Mayas Through Maternal Linage (Ochoa-Lugo 2016) [https://pubmed.ncbi.nlm.nih.gov/28162001/]</ref><ref>Villamar Becerril Enrique, “Estudios de ADN y el origen de los olmecas", Arqueología Mexicana, núm. 150, pp. 40–41.(2019)[https://arqueologiamexicana.mx/mexico-antiguo/estudios-de-adn-y-el-origen-de-los-olmecas-0] {{Webarchive|url=https://web.archive.org/web/20210227210939/https://arqueologiamexicana.mx/mexico-antiguo/estudios-de-adn-y-el-origen-de-los-olmecas-0|date=27 February 2021}}</ref>