| 水稻白叶枯病新抗源Y238的鉴定及其近等基因系培育 |
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| 引用本文： | 王春连,赵炳宇,章琦,赵开军,邢全党.水稻白叶枯病新抗源Y238的鉴定及其近等基因系培育[J].植物遗传资源学报,2004,5(1):26-30. |
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| 作者姓名： | 王春连 赵炳宇 章琦 赵开军 邢全党 |
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| 作者单位： | 1. 中国农业科学院作物育种栽培研究所/农业部作物遗传育种重点开放实验室,北京,100081
2. 中国农业科学院作物育种栽培研究所/农业部作物遗传育种重点开放实验室,北京,100081;国际水稻研究所驻中国办事处,北京,100081 |
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| 基金项目： | 引进国际先进农业科技计划(948计划)，国家自然科学基金 |
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| 摘 要： | 从269份普通野生稻中鉴定出一个高抗白叶枯病的新抗源,编号为Y238.通过多茵系鉴定、抗谱分析及与目前国际上已知基因比较,证明该新抗源含有一个新基因,暂命名为WBB2.对JG30/Y238杂交后代成株期接种鉴定、遗传分析表明,WBB2为完全显性基因.通过杂交和回交,已将WBB2导入栽培稻中构建近等基因系.
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| 关 键 词： | 野生稻 白叶枯病 新基因 近等基因系 |
| 修稿时间： | 2003年12月10 |
Identification of a New Rice Germplasm with Resistance to Bacterial Blight and the Breeding of a Near-isogenic Line |
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| WANG Chun lian,ZHAO Bing yu,ZHANG Qi,ZHAO Kai jun,XING Quan dang.Identification of a New Rice Germplasm with Resistance to Bacterial Blight and the Breeding of a Near-isogenic Line[J].Journal of Plant Genetic Resources,2004,5(1):26-30. |
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| Authors: | WANG Chun lian ZHAO Bing yu ZHANG Qi ZHAO Kai jun XING Quan dang |
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| Institution: | WANG Chun lian 1,ZHAO Bing yu 1,ZHANG Qi 1,ZHAO Kai jun 1,2,XING Quan dang 1 |
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| Abstract: | A new resistant germplasm, Y238, to rice bacterial blight (BB) was identified from 269 Oryza rufipogon accessions. It harbors a new BB resistance gene, WBB2, based on the resistance spectrum analysis, and comparison with all the known BB resistance genes. According to resistance reaction and genetic analysis at adult stage of progeny from JG30/Y238, the gene WBB2 is a complete dominant BB resistance gene. The new gene has been transferred into cultivated rice variety JG30 by cross and backcross for breeding a near isogenic line. |
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| Keywords: | O rufipogon Bacterial blight New gene Near Isogenic line |
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