复交组合种子性状杂种优势的预测方法  

Approaches for predicting heterosis of quantitative seed traits based on multiple-cross mating designs

作　　者：许自成[1] 朱军[2] 

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

出　　处：《浙江大学学报（农业与生命科学版）》2005年第2期139-144,共6页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：河南省杰出青年科学基金资助项目(0112000900);河南省杰出人才创新基金资助项目(0421001900).

摘　　要：针对2n种子和3n胚乳数量性状的遗传特点,在考虑种子核基因、细胞质基因和母体植株核基因3套遗传体系以及基因型×环境互作效应的情形下,分别提出了三交和双交组合种子性状杂种优势的预测方法,给出了利用基因型值预测Fn代杂种优势的一般表达式.According to the features of diploid and triploid inheritance pattern for quantitative seed traits, and considering three genetic systems of seed nuclear genes, cytoplasmic genes and maternal plant nuclear genes with genotype × environment interactions, methods were proposed for predicting heterosis of seed characters based on the mating designs of three-way and four-way crosses. General formulae were derived for heterosis prediction of F_n　generation by using the predicted genotypic values.

关 键 词：杂种优势 预测方法 种子性状 组合 基因型×环境互作效应 复交 细胞质基因 一般表达式 遗传特点 数量性状 基因型值 核基因 胚乳 植株 双交 三交 

分 类 号：S792.99[农业科学—林木遗传育种] O211.67[农业科学—林学]