满江红九膘亚属种雄性育性的初步调查研究  

A Preliminary Investigation on Male Fertility of Azolla Species in Subgenus Rhizosperma

作　　者：金桂英[1] 陈坚[1] 唐龙飞[1] 

机构地区：[1]福建省农科院红萍研究中心,福建福州350013

出　　处：《江西农业大学学报》2001年第5期132-135,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：福建省自然科学基金资助项目

摘　　要：将满江红九膘亚属 3个种小孢子育性调查结果分成两大类。第一类特点是小孢子败育程度严重 ,全败育或近全败育 ;第二类特点为小孢子败育程度轻或较轻 ,总败育率变化幅度大。讨论了影响小孢子育性因素———遗传和外界环境条件。另外 ,就大型小孢子的发现 。Based on the data from investigation, the fertility of microspore in 3Azolla species belonging to Subgenus Rhizosperma could be divided into 2 groups, In the first group, the microspore is seriously sterile, totally sterile or nearly totally sterile while the microspore in the second group is slightly sterile with a narrow range of variation of total sterility. Moreover, the factors-heredity and environmental condition which affect the fertility of microspore are discussed in this article. In addition, on basis of discovery of mega-microspore, the gamete without meiosis is inferred as one of possible pathway to form Azolla multiploid.

关 键 词：满江红 九膘亚属种 小孢子育性 遗传 外界环境条件 

分 类 号：Q949.36+7.3[生物学—植物学]