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应用生物间遗传学的原理和方法,在温室中,将供试的32个小麦品种幼苗用小麦叶锈菌(Puccinia recondita f.sp.tritici)的11个菌株分别进行了接种,对获得的侵染型资料经过处理,直接推导出品种和菌株的基因型。结果表明:供试的小麦品种和叶锈菌株间存在19个相应基因对,不同品种所含的抗病性基因数有所不同,品种的抗病性基因愈多,可能表现的抗病力愈强,但其作用是在相应的无毒性菌株存在情况下而表现出来的。本研究结果对于小麦抗叶锈病育种工作在选择抗源品种作亲本方面,提供了有重要参考价值的遗传信息和依据。
In the greenhouse, 32 wheat cultivars were inoculated with 11 strains of Puccinia recondita f. Sp. Tritici in the greenhouse by using the principle and method of biological intergeneric genetics. Dye-type data processed to directly deduce the genotypes of strains and strains. The results showed that there were 19 corresponding gene pairs between the tested wheat varieties and the leaf rust strains. Different varieties contained different numbers of disease resistance genes. The more disease resistance genes of the cultivars, the more likely disease resistance Strong, but its role is shown in the presence of the corresponding non-toxic strain. The results of this study provide genetic information and basis for the breeding of wheat leaf rust resistance in the selection of resistant varieties as parents, which have important reference value.