Racial admixture in a Mestizo population from Mexico City

Abstract

Seven genetic systems were used to investigate the racial composition of a sample from a low-income Mexico City Mestizo group, finding estimates of 0.590, 0.348, and 0.062 of Indian, White, and Black ancestry, respectively. The results are similar to another Mexico City group studied previously and to several Mestizo populations from different parts of the country. The one thing in common in all these groups is low socioeconomic status. There is only one report suggesting that Mexico City Mestizos have around 70% White ancestry, and there is reason to believe the sample was taken from a high socioeconomic group. It is suggested that low socioeconomic Mexican Mestizo groups are characterized by a high Indian ancestry, above 50%. © 1995 Wiley-Liss, Inc.

Admixture analysis of a rural population of the state of Guerrero, Mexico

“…Native American ancestry, on the other hand, ranges from 31% in Veracruz to 76% in Tlaxcala (Crawford et al, 1974). In addition, all Mexican Indian groups exhibit some degree of admixture, mainly with Europeans, starting from $9% in the Huichol up to $37% in the Huasteco (Lisker et al, 1996). Thus it appears that Mestizo groups in Mexico, especially those from lower socioeconomic strata, differ from Mexican Indian populations more culturally than genetically (Lisker et al, 1996).…”

“…Estimates of admixture in Mexican Indian populations show levels of European admixture ranging from 8.8% in the Huichol to 37.3% in the Huasteco, as determined by the analysis of blood groups and serum proteins (Lisker et al, 1996). The European ancestry estimate for a Nahua population obtained by Lisker et al (1996) was 29.6%.…”

“…Estimates of admixture in Mexican Indian populations show levels of European admixture ranging from 8.8% in the Huichol to 37.3% in the Huasteco, as determined by the analysis of blood groups and serum proteins (Lisker et al, 1996). The European ancestry estimate for a Nahua population obtained by Lisker et al (1996) was 29.6%. According to these researchers, more isolated Indian groups tend to show lower non-Indian admixture, and since there are Nahua populations in 13 of Mexico's 31 states and Federal District, there may be differences in admixture proportions between them related to the respective degree of isolation and acculturation.…”

“…In addition, all Mexican Indian groups exhibit some degree of admixture, mainly with Europeans, starting from $9% in the Huichol up to $37% in the Huasteco (Lisker et al, 1996). Thus it appears that Mestizo groups in Mexico, especially those from lower socioeconomic strata, differ from Mexican Indian populations more culturally than genetically (Lisker et al, 1996). Additionally, some studies considered uniparental markers in Mexican populations (Torroni et al, 1994;Green et al, 2000;Gonzá lez-Oliver et al, 2001).…”

The Matrix Metalloproteinase 2-<i>1575</i> gene Polymorphism is Associated with the Risk of Developing Myocardial Infarction in Mexican Patients

“…Binding sites for transcription related 21) and their genome has undergone fewer recombination events than Mexicans. Genetic studies of Mexicans have shown that the proportion of Indian and White genes is 56% and 44%, respectively, in the dihybrid model and 3%, 56% and 41% from Blacks, Indian and White in the trihybrid model [22][23][24] . Genetic heterogeneity is a well-recognized reason for the failure to replicate genetic association findings.…”