1 福建省农业科学院水稻研究所,福建福州 350019;2 闽台作物有害生物生态防控国家重点实验室/农业部华南杂交水稻种质创 新与分子育种重点 实验室/福州(国家)水稻改良分中心/福建省作物种质创新与分子育种省部共建国家重点实验室培育基地/杂 交水稻国家重点实验室华南研究 基地/福建省作物分子育种工程实验室/福建省水稻分子育种重点实验室/水稻国家工程实验室,福建福州 350003
国家重点研发计划项目(2017YFD0100100);福建省科技厅 2016 年省属公益项目(2016R1020-11)
LUO Xi
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003WU Fang-xi
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003LIN Qiang
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003LIAN Ling
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003HE Wei
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003XIE Hong-guang
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003CHEN Li-ping
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003ZHU Yong-sheng
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003WEI Yi-dong
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003JIANG Jia-huan
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003XIE Hua-an
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003ZHANG Jian-fu
1Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019; 2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 3500031Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019;2State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture/Fuzhou Branch, National Rice Improvement Center/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/ National Engineering Laboratory of Rice, Fuzhou, Fujian 350003
National key research and development projects(2017YFD0100100); The provincial public welfare project of department of science and technology in Fujian provincial,China in 2016 (2016R1020-11)
对159份遗传差异较大的水稻品种进行耐低钾筛选,根据综合指数筛选出18份耐低钾和10份低钾敏感的水稻品种。利用筛选得到的耐低钾水稻品种台农67和低钾敏感品种制西构建重组自交系,对 耐低钾相关性状进行QTL 分析和定位,共检测到27个耐低钾相关性状的QTL,LOD 值为2.52~9.23,可 解释表型变异为2.22%~7.25%,其中贡献率最高的QTL是 qKC-2,该 QTL 定位在水稻2号染色体上,可能是1个控制水稻钾含量的未知基因,可进一步通过构建次级群体对该基因进行精细定位和克隆。本研究中设计的 Indel 标记可快速筛选水稻育种材料中的耐低钾基因型,缩短育种时间,而且重组自交系中可以选 出农艺性状好又耐低钾的株系直接应用于育种。
159 genetically-variable rice varieties were tested for low potassium tolerance according to the synthetic appraisal index. The results indicated that there were 18 and 10 rice varieties that were tolerant and sensitive to potassium deficiency, respectively. By deployment of the recombinant inbred lines (RILs) that were derived from the crossing between the varieties of Tainong67 (potassium tolerant) and Zhixi (potassium sensitive), 27 QTLs for potassium deficiency resistance were detected. The LOD values arranged from 2.52 to 9.23, which explained the phenotypic variance of 2.22% to 7.25%. A major QTL qKC-2 was mapped on chromosome 2 of rice. This locus was yet reported, and might encode for an unknown gene that is valuable for future fine mapping and gene isolation. The newly-developed indel markers could be used to rapidly screen the genotypes with potassium deficiency resistance, thus shortening the breeding period. The lines with good agronomic traits and potassium deficiency resistance could be chosen from RILs and applied to rice breeding directly.
罗曦,吴方喜,林强,等.水稻苗期耐低钾品种筛选及相关性状的QTL定位[J].植物遗传资源学报,2019,20(5):1262-1270.
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