[h=3]Population genetics[/h]
A Spaniard and his indigenous wife and their child, 18th century
A study by the
American Society of Human Genetics reported that Mestizo Mexicans are 58.96% European, 35.05% "Asian" (Amerindian), and 5.03% African. Sonora shows the highest European contribution (70.63%) and Guerrero the lowest (51.98%) where we also observe the highest Asian contribution (37.17%). African contribution ranges from 2.8% in Sonora to 11.13% in Veracruz. 80% of the Mexican population was classed as mestizo (defined as "being racially mixed in some degree").[SUP]
[196][/SUP][SUP][
year needed][/SUP][SUP][
volume & issue needed][/SUP][SUP][
citation needed][/SUP]
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% 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.[SUP]
[197][/SUP]