Population genetics in the State of Nuevo Leon, Mexico. V. Frequencies of ABO, Rh (D), MN blood groups and other genetic traits.

During the last years we have been studying the phenotype and gene frequencies of blood groups and other genetic traits in order to learn the genetic composition of the human population in the State of Nuevo Leon. We tried to assess the influence of the different ancestral contributions in the degree of genetic diversity within the state, and also to evaluate the frequencies of some genetic traits in groups of persons suffering from various diseases. It has been found that for most traits the frequencies are intermediate to those reported for Mexican native and Spanish populations. It appears that the populations that recently immigrated to the State are the ones that have received more genetic influence from the Mexican natives, and those that have lived in the state since the last century are the ones that have received more genetic contribution from the Spanish.