摘要
以种间杂交创建的茄子雄性不育系为试材,采用形态学和细胞学观察对其花药形态、败育发生时期和机理进行了研究。结果表明:根据花药形态茄子雄性不育系材料可被划分为退化型、瓣化型和中间型3种类型;前期Ⅰ是3类不育系雄性败育发生的关键时期,绒毡层结构与功能异常可能是导致3类材料雄性败育的共性原因,减数分裂异常为败育的中间过程。花药瓣化类型不育材料在败育时期上表现出多样性,多糖类营养物质转运受阻也可能是其发生雄性败育的原因之一。
The eggplant male sterile materials developed from advanced backcrossing of interspecific hybrid were used to study the anther morphology,the stage,and the mechanism of pollen abortion by morphological and cytological methods.The results showed that the eggplant male-sterile materials were grouped into three types including degenerative-anther type,petaloid-anther type,and intermediate-anther type,according to the anther morphological characters.ProphaseⅠwas the key stage that pollen abortion occurred.The abnormity of tapetum structure and function was probably the common reason that resulted the male sterility.Abnormal meiosis was the intermediate process of pollen abortion.The petaloid-anther type serility materials displayed diversity in the obortion period.The transport disruption of polysaccharides might be one of the reasons for its occurrence of male serility.
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2013年第4期754-758,共5页
Journal of Plant Genetic Resources
基金
河北省科技厅科技攻关项目(06220116D
11220102D)
十一五国家科技支撑计划项目(2008BA97B06-8)
关键词
茄子
雄性不育
细胞学
Eggplant
male sterile
cytology
