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作 者 ：聂明建;王国槐; 陈光尧

期 刊 ：作物学报 2006年 32卷 07期 页码：1101-1103

关键词：油菜；雄性不育；核糖核酸酶活力；可溶性蛋白质；RNA含量；游离UMP；

Keywords:Rapeseed(Brassica napus L.), Male sterile lines, RNase vitality, Soluble protein, the amount of RNA and free UMP,

摘 要 ：以5种不同类型甘蓝型油菜雄性不育系为材料，以保持系为对照，对其花药败育过程进行了研究，发现其败育过程中核糖核酸酶活力及游离尿苷酸（UMP）含量显著升高，而RNA及可溶性蛋白质含量显著下降。不育系雄蕊的核糖核酸酶活力与RNA含量呈负直线相关，相关系数为－0.9796**。认为核糖核酸酶活力异常增强与甘蓝型油菜雄性不育有密切关系。

Abstract:

The anther abortion processes of five different types of male sterile lines in Rapeseed (Brassica napus L.) are studied by contrast. The results show that the RNase vitality and the amount of free UMP of the male sterile lines increase greatly and the amount of RNA and soluble protein decrease obviously in the process of abortion. The relative coefficient between RNase vitality and the amount of RNA, which are negatively linearly related, is －0.9796**. Therefore the abnormal increase of RNase vitality is closely related with the male sterility in rapeseed (Brassica napus L.).

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