| 分子标记辅助选择培育抗稻瘟病恢复系R1198 |
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| 引用本文： | 肖武名等. 分子标记辅助选择培育抗稻瘟病恢复系R1198[J]. 中国稻米, 2014, 0(1): 57-59 |
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| 作者姓名： | 肖武名等 |
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| 作者单位： | [1]国家植物航天育种工程技术研究中心,广东广州510642 [2]广东省农业科学院植物保护研究所,广东广州510640 |
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| 基金项目： | 国家“863”项目“华南稻区强优势水稻杂交种的创制与应用”（2011AA10A101）;超级稻新品种选育与示范推广（112003）;广东省科技计划项目“作物诱变育种新技术研究”（2011A020102004）;现代农业产业技术体系建设专项资金（CARS-01-12） |
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| 摘 要： | 通过有限回交、自交,并结合分子标记辅助选择,将广谱抗稻瘟病种质H4的一个主效抗病基因Pi46(t)转育到强恢复系广恢998中,从BC2F4代群体中选育到一个株叶型较好的单株,命名为R1198。分析结果表明,R1198比广恢998的抗谱明显拓宽,两者农艺性状大体接近,但仍存在一定的差异。
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| 关 键 词： | 水稻 恢复系 稻瘟病 分子标记辅助选择 |
Development of a Blast-resistant Restoring Line Rl198 by MAS |
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| XIAO Wu-mingj,LUO Li-xin,SUN Da-yuanl,LIU Yong-zhu,WANG Huit,ZHANG Jian-guo,GUO Tao,YANG Qi-yunz＇,CHEN Zhi-qiang. Development of a Blast-resistant Restoring Line Rl198 by MAS[J]. China Rice, 2014, 0(1): 57-59 |
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| Authors: | XIAO Wu-mingj LUO Li-xin SUN Da-yuanl LIU Yong-zhu WANG Huit ZHANG Jian-guo GUO Tao YANG Qi-yunz＇ CHEN Zhi-qiang |
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| Affiliation: | 1＂ ( National Engineering Research Center of Plant Space Breeding, Guangzhou 510642, China; 2 Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; ) |
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| Abstract: | In the study, a major R gene Pi46 （t） in H4, a broad-spectrum blast-resistant indica accession, was introgressed into Guanghui 998, a good restoring line, through limited backcrossing and self-pollination combined with marker-assisted selection （MAS）. A plant in the BC2F4 population showing good plant-type was selected and named R1198. The resistance spectrum of R1198 to tested blast isolates was largely broader than that of Guanghui 998, agronomic traits of R1198 were totally similar but some different to Guanghui 998. |
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| Keywords: | rice restoring line blast disease MAS blast resistence |
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