玉米叶片叶绿素含量遗传主效应及其与环境互作的遗传分析

Analysis of Genetic Main Effects and Genotype by Environment Interactions for Leaf Chlorophyll Content in Maize

采用朱军包括基因型×环境互作效应的加性-显性-母体效应遗传模型(ADM模型)分析方法,研究了不同环境条件下玉米吐丝期叶片叶绿素含量性状的遗传主效应及其与环境互作效应。结果表明,玉米叶片叶绿素含量的遗传表现除了受制于基因的加性效应、显性效应及母体效应等遗传主效应外,还会明显受到遗传主效应与环境互作效应的影响。遗传主效应中以显性效应(VD)为主,加性效应(VA)次之。互作效应中以显性效应×环境互作效应(VDE)为主,其次为母体效应×环境互作效应(VME)。叶片叶绿素含量性状在早代不同环境中选择均具有一定的成效。在遗传育种中需要注意各种基因效应在不同环境中的差异,根据各亲本的遗传效应预测值,选用遗传主效应表现良好以及在不同环境下互作效应表现较为稳定的优良亲本组配杂交组合,育成适应不同地区或某一特定地区的新品种,提高选择效果。

An additive-dominance-maternal genetic model with genotype by environment interactions and corresponding statistical analysis approaches by Zhu Jun were applied to analyze genetic main effects and genotype by environment interactions for leaf chlorophyll content in maize silking under different environmental conditions. The results indicated that maize leaf chlorophyll content was significantly effected by the main genetic effects as well as by gentype by environment interactions. Among the genetic main effects, dominance effect was more important than additive effect. Among interaction effects, dominance effect x environment interaction effect was main and maternal effect x environment interaction effect was secindary. It was certain effect to select leaf chlorophy content in early genetation under different environmenls. It was very important to pay more attention to the difference of genetic effects under different environments. According to predicted genetic effects of parents, select good parents that genetic main effects was excellent and environment interaction effects was stable to make a cross, then enhance select efficiency and breed new hybrids that is suitable to different or special area .