Genetic Mapping of the Region Including a Bacterial Blight Resistance Gene Xa12 in Rice

Subtropical Plant Science ›› 2006, Vol. 35 ›› Issue (03): 1-4.

Genetic Mapping of the Region Including a Bacterial Blight Resistance Gene Xa12 in Rice

BAO Si-yuan^1,3, TAN Ming-pu², LIN Xing-hua³

1. Medical College, Xianning College, Xianning 437100, Hubei China;
2. College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu China;
3. National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei China

Received:2006-03-13 Online:2006-09-10 Published:2006-09-10

水稻抗白叶枯病基因Xa12区间连锁图的构建

鲍思元^1,3,谭明谱²,林兴华³

1. 咸宁学院医学院, 湖北咸宁 437100;
2. 南京农业大学生命科学学院, 江苏南京 210095;
3. 华中农业大学作物遗传改良国家重点实验室, 湖北武汉 430070

作者简介:鲍思元(1976-),男,湖北黄冈人,硕士,从事分子遗传学研究。
基金资助:
国家863计划项目(2001AA222161)

Abstract

Abstract: Based on SSR analysis in an F₂ population containing 143 plants from a cross between Java14 and ZZA, a high-resolution linkage map for the Xa12 region on chromosome 4 of rice was constructed.And SSR markers (RM349、RM348、RM255、MRG4611) were incorporated into it.This result provided a solid base for fine mapping and map-based cloning of Xa12 using SSR markers in F₂ population derived from the cross of Java14 and ZZA.

Key words: rice, bacterial blight disease, resistance gene, Xa12, SSR, genetic mapping

摘要： 利用SSR标记对143株Java14/珍珠矮F₂随机群体进行分析,构建了水稻第4染色体上抗白叶枯病基因Xa12高饱和度的SSR标记区间连锁图。该分子图谱整合了SSR标记RM349、RM348、RM255、MRG4611,为进一步利用SSR标记在Java14/珍珠矮F₂群体中精细定位Xa12以及克隆该基因奠定了基础。

关键词: 水稻, 白叶枯病, 抗性基因, Xa12, SSR, 定位

CLC Number:

Q755

BAO Si-yuan, TAN Ming-pu, LIN Xing-hua. Genetic Mapping of the Region Including a Bacterial Blight Resistance Gene Xa12 in Rice[J]. Subtropical Plant Science, 2006, 35(03): 1-4.

鲍思元,谭明谱,林兴华. 水稻抗白叶枯病基因Xa12区间连锁图的构建[J]. 亚热带植物科学, 2006, 35(03): 1-4.

References

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