RED-CELL ACID-PHOSPHATASE TYPES AND GC POLYMORPHISMS IN MERIDA, OAXACA, LEON, AND SALTILLO, MEXICO

Red cell acid phosphatase types and GC polymorphisms were studied in M erida and Oaxaca, Mexico. GC polymorphisms were also investigated in L eon and Saltillo. The ACPA, ACP*B, and ACP*C gene frequencies were 0. 215, 0.770, and 0.015 respectively, in Merida and 0.205, 0.788, and 0. 002, respectively, in Oaxaca. In Oaxaca the ACPR gene had a frequency of 0.005. The results are similar to other Mestizo groups studied in Mexico; it is concluded that the ACPC and ACP*R genes were introduced by admixture of native Amerindians with whites and blacks, respective ly. The GC1S, GC*1F, and GC*2 gene frequencies were 0.489, 0.289 and 0.222, respectively, in Leon; 0.500, 0.272, and 0.228, respectively, i n Merida; 0.454, 0.337, and 0.209, respectively, in Oaxaca; and 0.505, 0.356, and 0.139, respectively, in Saltillo. These results are simila r to what has been obtained in other Mestizo populations and Indian gr oups in Mexico, probably because the main ethnic component in both is Amerindian.