利用功能性分子标记检测了36份恢复系和42份不育系中Pi2、Pi5、Pi9、Pi54、Pia、Pib、Pit和Pita等8个稻瘟病抗性基因的分布.结果发现:这8个抗性基因在检测的品系中有不同频率的分布.在这78个品系中,不育系申11A是携带抗性基因最多的品系,检测到了6个稻瘟病抗性基因;而8527A、徐1A和016A等3个品系中未检测到抗性基因的存在.根据品系间遗传距离进行聚类分析,可将这78个品系分为5组.%Rice blast-resistant genes Pi2,Pi5,Pi9,Pi54,Pia,Pib,Pit and Pita were detected in 36 restoring lines and 42 sterile lines by functional molecular markers.The results indicated that those 8 rice blastresistant genes were distributed in the 78 tested lines at various frequencies.Six rice blast-resistant genes were detected in the sterile line Shen-11A containing the most rice blast-resistant genes among the 78 lines,whereas no rice blast-resistant gene was detected in the lines 8527A,Xu-1A and 016A.The genetic distance-based cluster analysis showed that those 78 lines could be divided into 5 groups.
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机译：Genotypic Analysis of Rice Blast Resistance Genes Pi-ta and Pi-b in Japonica Rice Varieties and Lines in Jiangsu Province江苏部分粳稻品种和品系中稻瘟病抗性基因Pi-ta和Pi-b的基因型分析
