| Xa21转基因水稻对白叶枯病的抗性及其遗传 |
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| 引用本文： | 周永力,翟文学,章琦,王春连,田文忠,潘学彪,朱立煌. Xa21转基因水稻对白叶枯病的抗性及其遗传[J]. 植物病理学报, 2001, 31(2): 123-129 |
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| 作者姓名： | 周永力 翟文学 章琦 王春连 田文忠 潘学彪 朱立煌 |
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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实验室, 北京 100081;2 中国科学院遗传研究所, 北京 100101;3 扬州大学农学院, 扬州 225009 |
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| 基金项目： | 国家"863”高技术研究项目资助(101-01-02-01) |
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| 摘 要： | 采用包括与Xa21基因相对应的白叶枯病鉴别小种P6在内的12个国际鉴别小种和我国7个病原型,对通过农杆菌介导的8个不同遗传背景的Xa21转基因品系,及其不同世代的植株,进行接种和抗性分析。结果表明:Xa21在不同的遗传背景下呈现显性,并且在转基因后代中可以稳定遗传,且保留其广谱抗性。在不同的遗传背景下,Xa21的抗性表达略有差异。
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| 关 键 词： | Xa21 转基因水稻 白叶枯病 抗性 |
| 文章编号： | 0412-0914(2001)02-0123-07 |
| 修稿时间： | 2000-03-01 |
RESISTANCE AND INHERITANCE OF Xa21 TRANSGENIC RICE TO BACTERIAL BLIGHT |
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| ZHOU Yong li ,ZHAI Wen xue ,ZHANG Qi ,WANG Chun lian ,TIAN Wen zhong ,PAN Xue biao ,ZHU Li huang [WTBZ]. RESISTANCE AND INHERITANCE OF Xa21 TRANSGENIC RICE TO BACTERIAL BLIGHT[J]. Acta Phytopathologica Sinica, 2001, 31(2): 123-129 |
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| Authors: | ZHOU Yong li ZHAI Wen xue ZHANG Qi WANG Chun lian TIAN Wen zhong PAN Xue biao ZHU Li huang [WTBZ] |
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| Affiliation: | 1 Key Laboratory of Crop Genetic and Breeding of Ministry of Agriculture, Institute of Crop Breedin and Culcivation, CAAS, Beijing 100081;2 Institute of Genetics, Academia Sinica, Beijing 100101;3 Agricultural College, Yangzhou University, Yangzhou 225009, China |
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| Abstract: | Xa21 transgenic rice lines derived from 8 cultivars with different genetic background through the Agrobacterium mediated transformation system and their generations T 0 and T 1 were inoculated with 12 international differential races and 7 Chinese pathotypes of Xanthomonas oryzae pv. oryzae. Resistance analysis showed that Xa21 gene expressed dominantly, and inherited stably in transgenic progenies with a broad resistance spectrum. The results also revealed that different genetic background showed certain effect on the resistance expression level of Xa21. |
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| Keywords: | Xa21 transgenic rice bacterial blight resistance |
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