Cerda-Flores R M, Garza-Chapa R
Hum Biol. 1989 Apr;61(2):249-61.
Allele frequencies for the ABO, Rh, MNSs, Duffy, Kidd, Lutheran, P and Lewis blood group systems in 207 persons whose 4 grandparents were born in the Monterrey Metropolitan area (MMA), grouped into 3 generations, were ascertained along with other related population from the MMA, Mestizos from Saltillo, Coahuila and Tlaxcala, and from the populations thought to have contributed to their genetic constitution (native Mexican Indians and Spanish). Genetic admixture and distance estimates were calculated. Gene frequencies of the three generations from MMA are intermediate to those of the ancestral populations, indicating that they are Mestizo but with a genetic structure different from Mestizos of Saltillo and Tlaxcala. Both genetic admixture and distance estimates indicate that the oldest generation exhibits the greatest Spanish influence which decreases in the youngest generation and in the other MMA populations as a result of the immigration from the central states of Mexico.
对207名四代祖父母均出生于蒙特雷大都市区（MMA）的人进行了ABO、Rh、MNSs、达菲、基德、路德、P和刘易斯血型系统的等位基因频率测定，这些人分为三代。同时还测定了来自MMA的其他相关人群、来自科阿韦拉州萨尔蒂约和特拉斯卡拉的混血儿，以及被认为对其基因构成有贡献的人群（墨西哥本土印第安人和西班牙人）的等位基因频率。计算了基因混合和距离估计值。来自MMA的三代人的基因频率介于祖先人群之间，表明他们是混血儿，但基因结构不同于萨尔蒂约和特拉斯卡拉的混血儿。基因混合和距离估计值均表明，最老的一代受西班牙影响最大，而由于来自墨西哥中部各州的移民，最年轻的一代和其他MMA人群受西班牙的影响则有所减小。
