萝卜雄性不育花粉母细胞减数分裂过程的研究  

Study on Meiosisn of Male Sterile Pollen Mother Cells in Radish

作　　者：张荣风[1] 张丽[2] 宫国义[2] 

机构地区：[1]辽宁农业职业技术学院,辽宁营口115009 [2]北京市农林科学院蔬菜研究中心,北京100089

出　　处：《辽宁农业科学》2007年第5期9-12,共4页Liaoning Agricultural Sciences

摘　　要：以萝卜雄性不育株与可育株为试材,比较研究了不育与可育花粉母细胞的减数分裂过程。结果发现:不育花粉母细胞在第二次减数分裂后期,染色体行为出现异常,即在分向两极时,出现了不均等分裂现象。这是导致后期小孢子败育的一个潜在原因。The processes of meiotic division of pollen mother cells were compared between male sterile plants and male fertile ones. Non-equal division of the chromsomes male sterile pollen mother cells was observed at anaphase of the second stage. The non-equal division resulted in the later collapsion of microspores.

关 键 词：萝卜 雄性不育 减数分裂 小孢子发育 

分 类 号：S631.101[农业科学—蔬菜学]