华北农学报2012，Vol.27Issue(5)：122-126,5.
辣椒细胞质雄性不育系FS1030A小孢子发生的细胞形态学观察
Cytologic Observations on Microspore Development of FS1030A,a Cytoplasmic Male Sterile Line in Capsicum annum L.
摘要
Abstract
Transmission Electronic Microscopy (TEM) technique was used to observe the abortive stages and ways of FS1030A,a cytoplasmic male sterile line(CMS) in Capsicum annum L. And its maintainer line FS1030B. The results showed that the abortion occurred before tetrads came into being, and two kinds of main structural changes in the tapetum were observed in CMS FS1030A. First during the meiosis of microspore mother cells( MMCs) , some of the tapetal cells were enlarged, elongated and developed into multilayer cells. They squeezed the MMCs excessively which narrow the powder chamber much. The MMCs degenerated, vanished and failed to develop into tetrads , eventually leading to microspore abortion. Second some of the premature tapetal cell layer degenerated, and then the remnants of the collapsed tapetum and crushed MMCs formed a visible dense belt in the anther locule. The MMCs presented irregular shapes, and eventually degenerated due to the lack of nutrition.关键词
辣椒/细胞质雄性不育/透射电镜观察技术/绒毡层Key words
Capsicum annum L/Cytoplasmic male sterility( CMS ) /TEM/Tapetum分类
农业科技引用本文复制引用
张玲玲,张晓芬,陈斌,孙艳,韩华丽,耿三省..辣椒细胞质雄性不育系FS1030A小孢子发生的细胞形态学观察[J].华北农学报,2012,27(5):122-126,5.基金项目
北京市农林科学院科技创新能力建设专项(KJCX201101010-15) （KJCX201101010-15）
蔬菜高效育种技术研发与重大品种选育子课题(D111100001311002) （D111100001311002）
