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分析了城特２３２与其抗源品种对水稻白叶枯病菌系Ｗ_１、Ｐ_１和Ｔ_１的抗性基因及其等位关系。结果表明：城特２３２对３个菌系的抗性受２对重复显性基因控制，等位性测定表明其中的１对基因来自农垦５８，与Ｘａ－３等位。而Ｔｅｔｅｐ的抗性基因未导入到城特２３２中去。城特２３２对白叶枯病的抗性强，抗谱广，在抗病育种中可作为抗源亲本加以利用．
The resistance genes and their allelic relationships of the special resistant cultivars W135, W_1, P_1 and T_1 to Xanthomonas oryzae were analyzed. The results showed that the resistance of three special strains to the three strains was controlled by two pairs of duplication dominant genes. One allele of them was from Nongken 58 and was allelic to Xa-3. The resistance gene of Tetep was not introduced into the city 232. City 232 special resistance to bacterial blight resistance, broad spectrum anti-disease breeding can be used as a source of resistance to be used.