摘要
采用主基因—多基因混合遗传模型分析方法，对不结球白菜乌塌菜×矮脚黄、雪克青×矮脚黄两个组合的维生素Ｃ、可溶性糖含量进行单世代和联合世代遗传分析。结果表明，两组合中维生素Ｃ含量遗传符合一个主基因和多基因的混合遗传模型，主基因遗传率为５２６８％～７４１２％。可溶性糖在雪克青×矮脚黄组合中也符合主基因—多基因遗传模型，主基因遗传率为８９７３％～８９７９％。维生素Ｃ和可溶性糖主基因效应均以加性效应为主，在乌塌菜×矮脚黄组合中，两性状主基因有较明显的负向显性效应，在雪克青×矮脚黄组合中，显性效应不明显。育种实践中应注重对主基因加性效应的利用。
Genetic effects of vitamine C and soluble sugar in non heading Chinese cabbage( Brassica campestris ssp. chinensis Makino)combination Wutacai×Aijiaohuang and Xuekeqing×Aijiaohuang,were analysed with the major polygene mixed inheritance model.The result showed that the major polygene mixed inheritance model was appropriate to the inheritance of vitamine C contents in two combinations,and the major gene heritabilities were between 52.68%-74.12%.The mo del was also appropriate to the inheritance of soluble sugar content of combination Xuekeqing×Aijiaohuang and the major gene heritabilities were between 89.73%-89.79%.The additive effects of vitamine C and soluble sugar content were more important than the dominant effects of them.In Wutacai×Aijiaohuang,the major genes of the two characters showed negative dominant effects ;but the dominant effects were insignificant in Xuekeqing×Aijiaohuang.Additive effects of major gene should be used in hybrid breeding for high quality variety.
出处
《园艺学报》
CAS
CSCD
北大核心
1999年第3期170-174,共5页
Acta Horticulturae Sinica
基金
国家教委高校博士点基金
"九五"国家科技攻关项目
关键词
不结球白菜
维生素C
可溶性糖
遗传
模型
白菜
Brassica campestris ssp. chinensis Makino
Vitamine C
Soluble sugar
Major polygene mixed inheritance model
