Dubrova Iu E, Karafet T M, Sukernik R I, Gol'tsova T V
Genetika. 1990 Jan;26(1):122-9.
The relationship between heterozygosity for 13 polymorphic loci and fertility of women having passed the menopause was studied in two North-Siberian tribes: Forest Nentzy (N = 108) and Nganasans (N = 68). The number of pregnancies positively correlated with the individual heterozygosity (r = 0.2910 +/- 0.1063; P less than 0.01) in Forest Nentzy, while in Nganasans this correlation was absent. Women with the average level of individual heterozygosity were characterized by minimal values of variation in pregnancies' number and maximal Q index of realized fertility. It is concluded that the average level of individual heterozygosity is optimal for both tribes.
在两个北西伯利亚部落中，研究了13个多态位点的杂合性与绝经后女性生育能力之间的关系：森林涅涅茨人（N = 108）和恩加纳桑人（N = 68）。在森林涅涅茨人中，怀孕次数与个体杂合性呈正相关（r = 0.2910±0.1063；P < 0.01），而在恩加纳桑人中则不存在这种相关性。个体杂合性处于平均水平的女性，其怀孕次数的变异值最小，实现生育力的Q指数最大。得出的结论是，个体杂合性的平均水平对两个部落而言都是最佳的。
