Abstract
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.
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Xiong, M., Wang, S. & Zhang, Q. Coincidence in map positions between pathogen-induced defense-responsive genes and quantitative resistance loci in rice. Sci. China Ser. C.-Life Sci. 45, 518–526 (2002). https://doi.org/10.1360/02yc9057
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DOI: https://doi.org/10.1360/02yc9057