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

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.