| 显性雄性核不育突变体水稻的遗传鉴定 |
| |
| 引用本文： | 朱旭东,RUTGER J Neil.显性雄性核不育突变体水稻的遗传鉴定[J].核农学报,2000,14(5):279-283. |
| |
| 作者姓名： | 朱旭东 RUTGER J Neil |
| |
| 作者单位： | 1. 中国水稻研究所,浙江,杭州,310006
2. 美国国家水稻种质评价改良中心,斯图加,721602 |
| |
| 基金项目： | 国际原子能机构资助项目，CPR/51010， |
| |
| 摘 要： | 利用γ射线处理水稻干种子 ,从 2个美国品种Orion和Kaybonnet中分别获得了雄性核不育突变体 1 783和 1 789。对 1 783的M7代和 1 789的M6 代的花粉育性和结实率进行了观察和考查 ,并对后裔单株育性的分离结果进行了统计分析。结果表明 ,突变体 1 783和 1 789的育性分离为 1可育 :1不育 ,雄性核不育性受一对显性基因控制 ,是一种人工诱变中不常见的显性突变。 2个雄性核不育突变体的花粉育性 ,经I KI染色表现为部分败育 ,自然状态下的结实率为 3 0 %左右 ,套袋结实率仅0 3 %～ 3 5 %。显性雄性核不育是水稻遗传育种中进行群体改良的有效工具
|
| 关 键 词： | 水稻 雄性核不育 显性突变 |
| 收稿时间： | 2009-12-31 |
| 修稿时间： | 1998-11-21 |
IDENTIFICATION OF DOMINANT MALE STERILE MUTANTS IN RICE ( Oryza sativa L.) |
| |
| ZHU Xu-dong,RUTGER J Neil.IDENTIFICATION OF DOMINANT MALE STERILE MUTANTS IN RICE ( Oryza sativa L.)[J].Acta Agriculturae Nucleatae Sinica,2000,14(5):279-283. |
| |
| Authors: | ZHU Xu-dong RUTGER J Neil |
| |
| Abstract: | Genetic male sterile mutants 1783 and 1789 were selected from US variety Orion and Kaybonnet seeds treated by gamma irradiation. Investigation of fertility characterization of pollen and spikelets of these mutants were made by progeny tests in 1783 M 7 and 1789 M 6 generations. The results showed that genetic male sterile mutants 1783 and 1789 with the fertility segregating of 1 sterile:1 fertile were controlled by a single dominant gene. The pollen staining of mutants characterized partial sterility. Open pollinated seed set was about 30% and bagged seed set was only 0 3%～3 5%. It is concluded that dominant genetic male sterile is a useful tool in improvement of population for rice breeding. |
| |
| Keywords: | Oryz a sativa genetic male sterility dominant mutation |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《核农学报》浏览原始摘要信息 |
| 点击此处可从《核农学报》下载免费的PDF全文 |
|
