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《Journal of Fujian Agricultural and Forestry University(Natural Science Edition)》 2004-03
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Application of  backcrossing and marker-assisted selection to improve bacterial blight disease resistance of Zhenshan 97B

LIN Li-hui~1, CHEN Zhi-wei~1, ZHANG Ji-sen~1, WU Wei-ren~(1,2), ZHOU Yuan-chang~1, TANG Ding-zhong~1 (1.College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; 2.College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310029, China)  
Using IRBB21 as the donor of the resistant gene to rice bacterial blight disease, resistant gene Xa21 was introgressed into elite variety Zhenshan 97B through one cross, three backcrosses and one selfing. Six near-isogenic lines of Zhenshan 97B with introgressed Xa21 were obtained through traditional breeding method combined with marker assisted selection, of which the recovery rates of Zhenshan 97B genetic background ranged from 92.8% to 97.4% (94.9% on average).
【Fund】: 国家高技术研究发展计划资助项目(2004AA211141);; 福建省重大科技项目资助项目(2000Z026);; 福建省自然科学基金资助项目(B9910011).
【CateGory Index】: S511
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