控制数量性状的基因对数及作用的估计

The Estimation of the Gene Effect and the Numberof Loci in a Trait

对ｎ个位点等作用、等频率的同类基因控制性状的基因位点数和基因作用进行了研究，推导出了具有上述条件的父母代群随机交配后，其后代的表型值及其出现频率、群体均数、群体方差、选择亲本群基因频率、选择亲本群均数通式及在运用任三代可测参数中，推导了基因对数与基因作用的关系方程式，并提供了估算同类基因控制性状的基因对数公式和估算基因作用的方法。

This passage is devoted to the study of the effect of gene and the number of loci in a trait controlled by n loci (two alles in each locus )with equal effect and frequency.Formulas for calculating population distribution, mean, Variance,gene frequency selected parents are developed,and the formula of the gene effect and the mumber of loci are deduced as well.