| 应用回交和花培转育水稻抗白叶枯病基因Xa-21 |
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| 引用本文： | 徐建龙,林贻滋,赵学本,童培银,黄伟荣.应用回交和花培转育水稻抗白叶枯病基因Xa-21[J].浙江大学学报(农业与生命科学版),1997(4). |
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| 作者姓名： | 徐建龙 林贻滋 赵学本 童培银 黄伟荣 |
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| 作者单位： | 浙江省农业科学院作物研究所，诸暨市农业科学研究所 |
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| 摘 要： | 选用广谱高抗白叶枯病的籼稻ＩＲＢＢ２１为抗源供体（Ｘａ－２１），抗稻瘟病感白叶枯病的晚粳Ｔ９１－５０为轮回亲本，通过连续回交和花培转育显性抗性基因Ｘａ－２１．结果表明，连续回交结合在Ｂ２Ｆ２中选择偏粳的抗病植株花培，是籼粳亚种间转育抗白叶枯病基因的快速、有效方法，并对连续回交转育显、隐性抗性基因的技术特点、速度和效果进行了比较
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| 关 键 词： | 抗性基因 白叶枯病 粳稻品种 抗病育种 回交 花药培养 |
Transfer of Xa 21 gene resistant to bacterial blight for rice through backcross and anther culture. |
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| Xu Jianlong , Lin Yizi , Zhao Xueben , Tong Peiying , Huang Weirong.Transfer of Xa 21 gene resistant to bacterial blight for rice through backcross and anther culture.[J].Journal of Zhejiang University(Agriculture & Life Sciences),1997(4). |
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| Authors: | Xu Jianlong Lin Yizi Zhao Xueben Tong Peiying Huang Weirong |
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| Institution: | Xu Jianlong 1, Lin Yizi 1, Zhao Xueben 2, Tong Peiying 2, Huang Weirong 2 |
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| Abstract: | Using the indica rice variety IRBB 21 with wider resistance spectrum and high resistance to bacterial blight (BB) as resistance donor and late japonica T91 50 with resistance to blast and susceptible to BB as recurrent parents, the dominant resistant gene Xa 21 was transferred by successive backcross procedures (SBP) and anther culture (AC). Results of the study show that SBP combined with AC for obtaining resistant plants in B 2F 2 generations is a rapid and effective method of transferring resistance gene for BB between indica and japonica. Comparison of technical characteristic, speed and effect of transferring dominant and recessive resistant genes by SBP was made. |
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| Keywords: | resistance gene bacterial blight japonica rice variety disease resistance breeding backcross anther culture |
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