玉米果穗出籽率遗传效应分析

采用朱军包括基因型×环境互作效应的加性.显性.母体遗传模型(ADM模型)分析方法,研究玉米果穗出籽率性状遗传主效应及其与环境互作遗传效应.结果表明:玉米果穗出籽率主要受显性效应遗传体系控制,其次受加性效应遗传效应控制,同时还受加性×环境互作效应、显性×环境互作效应、母体×环境互作效应等不同遗传控制体系基因型×环境互作效应显著影响.对果穗出籽率性状的选择效果受环境影响较大,宜在较晚世代进行选择.育种中根据亲本果穗出籽率在不同环境中遗传效应预测值组配杂交组合,育成适应不同地区或某一特定地区的新品种,提高育种效率.

Analysis of genetic effect of kernel rate in Maize

Abstract: An additive-dominance-maternal genetic model with genotype by environment interactions by Zhu Jun was applied to analyze genetic main effects and genotype by environment interactions for kernel rate in maize. The results indicated that maize kernel rate was mainly controlled by dominance effects, and secondly by additive effects. At the same time, Genotype×environment effects had significant influence on different genetic systems of kernel rate, such as additive×environment, dominance×environment, maternal×environment. Environment has great influence on selection effect for kernel rate, it is suitable to select on later generation. In the maize breeding, the maize parent was selected to cross according to predicted genetic effects of kernel rate of maize parents under different environments, in order to breed new hybrids for different or special area, then enhance breeding effect efficiency for kernel rate trait.