【摘要】 用引自南斯拉夫的一套诺维萨特早熟1号(Novosadska Rana 1,简称 NSR-1)单体系为工具,对北京农业大学选育的抗条锈品系绿7蚰和保加利亚抗叶锈品种 Yantar 进行抗病基因定位研究。结果表明绿7蚰对条中25号小种的抗性是由位于2B 染色体上的一个显性抗病基因控制的。Yantar 对叶中3号小种的抗性是由位于5A 和1D 染色体上的两个不完全显性互补基因控制的。绿7蚰的抗条锈基因与已知抗条锈基因 Yr5、Yr7、Yr 水原是否相同,尚有待进一步研究。而 Yantar所带有的两个互补显性基因则可能是新的抗叶锈基因。更多还原

【Abstract】 A set of 21 monosomics of Novosadska Rana 1,introduced from Novi Sad,Yugoslavia,was used to pinpoint the location of rust resistant genes of Lüqiyu,astripe rust resistant line developed by BAU,and Yantar,a leaf rust resistant materialintroduced from Bulgaria.The results indicated that the resistance of the former tostripe rust race CY25 was conditioned by a dominant resistant gene located onchromosome 2B,whereas that of the latter to leaf rust race CL3 by two complementary incomplete dominant genes located on chromosomes 5A and 1D respectively.Whether the stripe rust resistant gene of Lüqiyu is the same as Yr5,Yr7 orYrSuwon,all located on chromosome 2B,or a different new gene,still remains for further studies.But it is very probable that the two complementary leaf rust resistantgenes of Yantar are new Lr genes.更多还原