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在加性-显性模型的基础上提出了检测基因分散态组合的三种方法:(1)检验F_2表型方差与环境方差的同质性以及六个群体P_1,P_2,F_1,F_2,B_1(F_1×P_1)和B_2(F_1×P_2)间方差的同质性,(2)检验上述家系均值间的差异显著性,(3)比较从分离世代经分裂选择所获两类极端品系间组合与基因分散的原始亲本间组合在遗传参数估计值上的差异.通过加性-显性模型检验、有效因子数和基因联合-分散度的估计以及重组近交系分离极限的预测,这些方法所检测到的基因分散态组合可进一步用于揭示数量基因的遗传特性.讨论了这类信息在植物改良中的应用.
On the basis of the additive-dominance model, three methods for detecting the combination of dispersed states of genes were proposed: (1) The homogeneity of F 2 phenotypic variance and environmental variance was examined, and the relationships among P 1, P 2, F 1, F 2, B 1 (2) checking the significance of the difference between the means of the above-mentioned pedigrees; (3) comparing the combinations of the two types of extremum lines obtained from the segregated selection from the offspring And genetic divergence of the original parents in the estimation of genetic parameters in the genetic differences estimated by additive - dominance model test, the number of effective factors and gene combination - the degree of dispersion estimates and recombinant inbred lines isolated limit of prediction, these methods The detected combinations of genetically dispersed states can be further used to reveal the genetic characteristics of quantitative genes, and the application of such information in plant improvement is discussed.