三交组合农艺性状的遗传模型及杂种优势预测方法  

Genetic Models and Heterosis Prediction for Triallel Mating Design

作　　者：许自成[1] 朱军[2] 

机构地区：[1]河南农业大学烟草系,河南郑州450002 [2]浙江大学农学系,浙江杭州310029

出　　处：《生物数学学报》2001年第4期448-455,共8页Journal of Biomathematics

摘　　要：本文根据广义遗传模型的建模原理，按照三交组合方式的交配设计，提出了分析作物三交组合数量性状的加性－显性－上位性模型（ＡＤＡＡ模型），给出了不同环境下各世代群体的遗传效应分量，介绍了相应的统计分析方法，并推导了根据基因型值进一步预测三交组合后代杂种优势的一般公式．According to principles of the generalized genetic model, models with additive, dominance and additive × additive effects were proposed for triallel mating design. Components of genetic effects at multiple environments were given for different generations. and analysis methods were introduced. Meanwhile, general formulae for predicting heterosis of the offspring of three-way crosses were derived on the basis of genotypic values.

关 键 词：三交 ADAA模型 遗传效应 农艺性状 基因型×环境互作 杂种优势 预测 杂交 

分 类 号：S334.24[农业科学—作物遗传育种] S11[农业科学—农艺学]