新型红菜薹细胞质雄性不育系的花药发育细胞学观察  

Cytological study of anther abortion in a novel cytoplasmic male-sterile line of purple Cai-tai

作　　者：邵明珠[1] 徐跃进[1] 万正杰[1] 

机构地区：[1]华中农业大学园艺林学学院/华中农业大学园艺植物生物学教育部重点实验室/国家蔬菜改良中心华中分中心,武汉430070

出　　处：《华中农业大学学报》2012年第4期436-439,共4页Journal of Huazhong Agricultural University

基　　金：湖北省自然科学基金重点项目(2010CBB01703);中央高校基本科研业务费专项(2009QC027)

摘　　要：采用石蜡切片方法,对新型红菜薹细胞质雄性不育系及其保持系俞优的花药发育过程进行细胞学观察,以确定其花药败育的时期、方式和特点。研究结果表明:此红菜薹胞质不育系的花药败育发生于单核小孢子早期,表现为绒毡层细胞异常膨大,挤压单核早期小孢子,从而导致其败育。Cytological observations o{ anther in a novel cytoplasmic male sterile line and its maintainer line Yuyou of purple Cat-tat （Brassica cam pestris L. ssp. chinensis L. var. utilis Tsen et Lee） was made by means of paraffin section to determine the characteristics of anther abortion. The results showed that the abortion occurred at the early stage of single-nucleus microspore. The abnormal tapetum cells were observed and microspores at early stage were extruded. In the end,the tapetum cell and microspore at early stage disaggregated.

关 键 词：红菜薹 细胞质雄性不育 花药败育 石蜡切片 细胞学 

分 类 号：S634.603[农业科学—蔬菜学]