花椰菜花球和植株性状的遗传与相关分析  

Analysis of heredity and correlation for head and plant traits in cauliflower(Brassica oleracea L.var.botrytis L.)

作　　者：杨加付[1] 饶立兵 顾宏辉[3] 叶子弘[4] 

机构地区：[1]温州大学生命与环境科学学院,浙江温州325035 [2]温州市农业科学研究院蔬菜研究所,浙江温州325006 [3]浙江省农业科学院蔬菜研究所,浙江杭州310021 [4]中国计量学院生命科学学院,浙江杭州310018

出　　处：《福建农林大学学报（自然科学版）》2010年第4期361-365,共5页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：浙江省科技计划资助项目(2004C32012)

摘　　要：利用包括基因与环境互作的加性-显性遗传模型对6个花椰菜品种(系)完全双列杂交试验的2 a观察资料进行花球性状与植株性状的遗传效应与相关分析.结果表明,年份间的环境差异对亲本和F1的表现影响较小;单球重、球径、球高、可溶性固形物含量、蛋白质含量、总糖含量和VC含量等花球性状以加性效应为主,普通狭义遗传率较高(53.37%-74.45%),株高、株幅和叶片数等植株性状以显性效应为主,且具有较大的环境互作效应,互作狭义遗传率较高(11.79%-37.27%);花球性状与植株性状间的各效应协方差分析表明,成对性状间的相关同时受到遗传主效应相关与环境互作相关的影响,相关性质和大小因性状不同而异,在间接选择时可加以利用,有助于对这些性状进行同步改良.An additive-dominant genetic model with genotype-environment（GE） interaction was employed to analyze genetic effect and correlation for head and plant traits in cauliflower,based on 2 year data from 6×6 diallel crosses.The results indicated that the effect of environmental deviation of different years on head and plant traits of parents and F1 was less.Head traits were mainly affected by additive effects for head weight,head diameter,head height,soluble solid content,protein content,sugar content and VC content,general heritabilities were higher ranging from 53.37% to 74.45%.However,plant traits were mainly affected by the dominance effects and genotype×environment interaction effects for plant height,plant spread width and leaf number,interaction heritabilities were higher ranging from 11.79% to 37.27%.Analysis of genetic covariance indicated that the correlation between the head and plant traits was affected by both the genetic main effects correlation and genotype×environment interaction effects correlation.There was more or less degree of correlation between the paired traits.The property and extent of the correlation varied with the paired traits.These correlations could be used in indirect selection breeding,would contribute to the simultaneous improvement of these traits in cauliflower breeding.

关 键 词：花椰菜 花球性状 植株性状 遗传效应 遗传相关 遗传协方差 

分 类 号：S635.3[农业科学—蔬菜学] S114[农业科学—园艺学]