Analysis of Fruit Length Using Mixed Major Gene and Polygene Inheritance Model in Summer Squash  

西葫芦果长性状主基因-多基因混合遗传分析(英文)

作　　者：陈凤真[1] 

机构地区：[1]菏泽学院园林工程系,山东菏泽274000

出　　处：《Agricultural Science & Technology》2011年第1期138-140,148,共4页农业科学与技术（英文版）

基　　金：Supported by Science and Technology Development Project of Jinan City in2006(064034)~~

摘　　要：[Objective]The aim was to provide scientific basis for breeding on the fruit length of summer squash.[Method]Inheritance of the fruit length of summer squash in P1,P2,F1,B1,B2 and F2 from two crosses q-1 ×23-4G（cross 1） and q-1 ×A-7（cross 2） was investigated by the mixed major gene and polygene inheritance model of quantitative traits.[Result]The results showed that the fruit length was controlled by D2 model;Genetic effect of fruit length of cross 1 was mainly additive effect,but genetic effect of fruit length of cross 2 was mainly dominant effect.Heritability values of the genes of F2 were relatively high and the environmental effect was relatively low.[Conclusion]The fruit length breeding of summer squash should be selected in early generation selection.[目的]为西葫芦果长育种提供依据。[方法]选用蔓生和矮生的西葫芦自交系配制q-1×23-4G(组合1)和q-1×A-7(组合2)2个组合,构建P1、F1、P2、B1、B2和F26个家系世代群体,应用植物数量性状主基因-多基因混合遗传模型对该6个世代群体果长进行多世代联合分析。[结果]2个组合的西葫芦的果长遗传为1对加性主基因+加性-显性多基因(D-2)遗传模型,组合1以加性效应为主,而组合2以显性效应为主;2个组合F2的基因遗传率较高,环境影响相对较小。[结论]西葫芦果长育种宜早代选择。

关 键 词：Summer squash Fruit length Major gene and polygene 

分 类 号：S642.6[农业科学—蔬菜学]