水稻三明显性核不育基因的初步鉴定  

Preliminary Identification of a Novel Sanming Dominant Male Sterile Gene in Rice (Oryza sativa L.)

作　　者：黄显波[1] 田志宏[2] 邓则勤[1] 郑家团[3] 林成豹[1] 唐江霞[1] 

机构地区：[1]福建省三明市农业科学研究所,福建沙县365509 [2]长江大学生命科学学院,湖北荆州434025 [3]福建省农业科学院水稻研究所,福建福州350019

出　　处：《作物学报》2008年第10期1865-1868,共4页Acta Agronomica Sinica

基　　金：福建省重大科技项目(2001Z007);教育部科学技术研究重点项目(205097)

摘　　要：2001年在福建省尤溪县西城镇凤元村进行两系核不育系育性鉴定时,在SE21S/Basmati 370组合编号为S221的800多株F2代分离群体中发现1株与其他不育株的花粉败育形态不同的植株。经测交、回交、姐妹交的后代育性分离调查,不育株与可育株呈11分离,以不育株为母本与普通品种配制杂交组合,其后代育性呈11分离,可育株后代分离不出不育株,表明S221不育性受核内1对显性不育基因控制。In the studies on the fertility in Fengyuan village, Xicheng town, Youxi county, Fujian province in 2001, a special sterile plant was found in the F2 populations of No. S221 from combination SE21S/Basmati 370. Its pollen abortion type was different from others. From the studies of test-crossing, back-crosses and sib-crossing, sterile and fertile plants segregated in a 1 ： 1 ratio in the descendant populations. When the sterile plant was used as female parent and crossed to normal variety, sterile and fertile plants segregated in a 1：1 ratio in the descendant populations also, and no sterile plants cound be separated from fertile plants. All of the results proved that the male sterility of S221 is controlled by one pair of dominant male sterility gene.

关 键 词：水稻 显性雄性核不育基因 无花粉型 

分 类 号：S511[农业科学—作物学]