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Coincidence in map positions between pathogen-induced defense-responsive genes and quatitative resistance loci in rice 被引量：3

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摘要 Quantitative disease resistance conferred by quantitative trait loci (QTLs) is presumably of wider spectrum and durable. Forty-four cDNA clones, representing 44 defense-responsive genes, were fine mapped to 56 loci distributed on 9 of the 12 rice chromosomes. The locations of 32 loci detected by 27 cDNA clones were associated with previously identified resistance QTLs for different rice diseases, including blast, bacterial blight, sheath blight and yellow mottle virus. The loci detected by the same multiple-copy cDNA clones were frequently located on similar locations of different chromosomes. Some of the multiple loci detected by the same clones were all associated with resistance QTLs. These results suggest that some of the genes may be important components in regulation of defense responses against pathogen invasion and they may be the candidates for studying the mechanism of quantitative disease resistance in rice. Quantitative disease resistance conferred by quantitative trait loci (QTLs) is presumably of wider spectrum and durable. Forty-four cDNA clones, representing 44 defense-responsive genes, were fine mapped to 56 loci distributed on 9 of the 12 rice chromosomes. The locations of 32 loci detected by 27 cDNA clones were associated with previously identified resistance QTLs for different rice diseases, including blast, bacterial blight, sheath blight and yellow mottle virus. The loci detected by the same multiple-copy cDNA clones were frequently located on similar locations of different chromosomes. Some of the multiple loci detected by the same clones were all associated with resistance QTLs. These results suggest that some of the genes may be important components in regulation of defense responses against pathogen invasion and they may be the candidates for studying the mechanism of quantitative disease resistance in rice.
作者 熊敏 王石平 张启发
出处 《Science China(Life Sciences)》 SCIE CAS 2002年第5期518-526,共9页 中国科学（生命科学英文版）
基金 This work was supported by the National Key Program on Basic Research and Development of China (973), the National Natural Science Foundation of China (Grant No. 39970450) the National Program of Research and Development of Transgenic Plants of China.
关键词 QTL disease resistance mapping rice. QTL, disease resistance, mapping, rice.
分类号 S511.01 [农业科学—作物学]
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参考文献10

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Science China(Life Sciences)
2002年 第5期

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