Genetic Research
In May 2009, Mexico's National Institute of Genomic Medicine issued a report on a genomic study of 300 mestizos from the states of Guerrero, Sonora, Veracruz, Yucatán, Zacatecas, and Guanajuato. The study found that the Mestizo population of these Mexican states were on average 55.2% of indigenous ancestry followed by 41.8% of European, 1.8% of African, and 1.2% of East Asian ancestry. The study also noted that whereas Mestizo individuals from the southern state of Guerrero showed on average 66% of indigenous ancestry, those from the northern state of Sonora displayed about 61.6% European ancestry. The study found that there was an increase in indigenous ancestry as one traveled towards to the Southern states in Mexico, while the indigenous ancestry declined as one traveled to the Northern states in the country, such as Sonora.
In addition, several genetic studies have shown that the average Mexican from Mexico City, the capital of the nation, has on average of over 65% of indigenous ancestry.
In 2004, the Mexican government founded the National Institute of Genomic Medicine (INMEGEN) which launched the Mexican Genome Diversity Project. In May 2009, the Institute issued a report on a major genomic study of 300 mestizos in the Mexican population. Among the findings it was reported that over 80% of the population is mestizo and that the proportions of European and indigenous ancestry are approximately even. The proportions of admixture were found to vary geographically from north to south, as previous pre-genomic studies had surmised, with the European contribution predominating in the north and the indigenous component greater in the south. One of the significant conclusions of the study as reported was that even while it is composed of diverse ancestral genetic groups from around the world, the Mexican population is, more or less, genetically distinctive among the world's populations. Some Mexicans of mixed descent also have a very small amount of African blood, with the most significant amount being found in southern central Mexico. Mexicans of East Asian descent are also very low in number, but can be found in significant levels in Baja California, especially Mexicali, as well as a select few other parts of Mexico. Some researchers, however, also believe that there are no "pure races" among the ethnically Mexican population.
Read more about this topic: Demographics Of Mexico
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