三色堇主要观赏数量性状的遗传效应研究  

Inheritance of Several Key Quantitive Traits of Pansy (Viola× wittrockiana)

作　　者：王健[1] 包满珠[1] 

机构地区：[1]华中农业大学园艺林学学院园艺植物生物学教育部重点实验室

出　　处：《园艺学报》2007年第2期449-454,共6页Acta Horticulturae Sinica

基　　金：农业部‘948’项目资助(2003-Z36)

摘　　要：通过双列杂交试验,采用MINQUE法进行遗传分析,发现在三色堇10个性状的遗传中,多数性状显性效应为主要的遗传效应,但株高、花数以加性效应为主,而株幅、花瓣厚则以加加上位性效应为主。不同性状的遗传力不同,总体广义遗传力较高(平均0.57),而狭义遗传力较低(平均0.33)。相关性分析表明,花径与花数呈显著正相关,与营养性状(如株高、株幅、分枝数、单叶面积等)的相关性均不强,只与分枝数有0.1水平的遗传负相关,花数与株高、株幅的相关性很高,但与分枝数、单叶面积相关性很弱。其它多数性状间相关系数未达到显著水平。The inheritance of 10 traits was studied by diallel cross analysis （ Griffing 2 ） performed within 5 inbred lines using a MINQUE method （additive-dominance- epistatic model）. Dominance effect applied for the most of traits, however, additive effect applied for plant height and number of flowers, while additive addifive epistatic effects applied for plant size and thickness of traits （hB^2） ranged ranged petals. The broad-sense heritabilities of different from 0. 33 to 0. 87 with an average of 0. 57, and the narrow-sense heritabilities （ hN^2 ） from 0. 10 to 0. 53 with an average of 0. 33. Correlation analysis showed that a significant positive correlation existed between flower size and number of flowers. No significant correlations were observed between flower size and vegetative traits, such as plant height, plant size, number of branches and single leaf area. Significant correlations existed between number of flowers and plant size, plant height, while no significant correlations were observed between number of flowers and number of branches or single leaf area. No significant correlations existed among other traits.

关 键 词：三色堇 数量性状 遗传分析 MINQUE法 

分 类 号：S681.9[农业科学—观赏园艺]