| 利用分子标记辅助选择双基因Xa21和fgr水稻植株 |
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| 引用本文： | 桑茂鹏,姜明松,李广贤,姚方印.利用分子标记辅助选择双基因Xa21和fgr水稻植株[J].山东农业科学,2009(1):4-7. |
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| 作者姓名： | 桑茂鹏 姜明松 李广贤 姚方印 |
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| 作者单位： | 1. 山东省水稻研究所,山东济宁,272017
2. 山东省农业科学院高新技术研究中心,山东济南,250100 |
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| 基金项目： | 山东省农业科学院高技术自主创新基金 |
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| 摘 要： | 通过有性杂交和田间选育，利用分子标记辅助选择、田间抗性鉴定及香味鉴定，将广谱高抗白叶枯病的基因Xa21和香味基因fgr聚合到同一单株中，获得了双基因纯合且农艺性状稳定的株系。用中国7个流行性白叶枯病菌进行抗病性鉴定，结果表明植株抗性级别为高抗，与供体亲本抗谱一致，抗性水平相当，且具有浓郁香味。
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| 关 键 词： | 水稻 白叶枯病 香味基因 分子标记 聚合 |
Pyramiding Xa21 and fgr in Rice by Marker-assisted Selection |
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| SANG Mao-peng,JIANG Ming-song,LI Guang-xian,YAO Fang-yin.Pyramiding Xa21 and fgr in Rice by Marker-assisted Selection[J].Shandong Agricultural Sciences,2009(1):4-7. |
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| Authors: | SANG Mao-peng JIANG Ming-song LI Guang-xian YAO Fang-yin |
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| Institution: | 1.Shandong Rice Research Institute;Jining 272017;China;2.High-Tech Research Center;Shandong Academy of Agricultural Sciences;Jinan 250100;China |
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| Abstract: | The homozygous lines which polymerized the broad spectrum and high resistance gene Xa21 and the fragrance gene fgr and had stable agronomic characters were obtained by crossing,agronomic selection and marker-assisted selection.Based on the resistance identification with seven inoculated strains,these lines showed high resistance to bacterial blight and had the same spectrum and similar resistance level as donor parent IRBB60.At the same time,these lines showed strong fragrance. |
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| Keywords: | Rice Bacterial blight Fragrance gene Molecular marker Pyramiding |
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