几种甘蓝型油菜雄性不育胞质效应的研究

THE STUDIES ON GENETIC EFFECTS OF MALE STERILE CYTOPLASM IN RAPESEED ( B.NAPUS )

用共同的保持系陕３Ｂ将０７Ａ、２２７Ａ、ＮｉｋＡ、陕２Ａ、ＰｏｌＡ５种不同的ＣＭＳ转育成同核异质不育系，研究不育胞质与可育胞质的差异和５种不育胞质之间的差异。结果表明，除０７Ａ、ＰｏｌＡ在含油量上有显著负效应外，在其余性状上５种不育胞质均表现正效应趋势，其组合间变幅较大。经细胞质相对效应和配合力的分析，在该核背景下陕２Ａ和２２７Ａ的不育胞质效应优于其它３种不育胞质。

The nuclei of 07A,227A,NikA,Shaan 2A and PolA were replaced with Shaan 3Bs nucleus.This reports studies on the differences between the sterile and normal cytoplasms,and the differences among five kind of sterile cytoplasms.The results showed that there were the trends of positive effects of the male sterile cytoplasm on major agronomic characters except for the oil content.The genetic effects of different types of cytoplasm appeared combining specialty obviously.For the nuclear background involved in this studies,the genetic effects of Shaan 2A and 227A were better than others.