水稻의 百葉枯病 抵抗性遺傳

Inheritance of resistance to bacterial blight(xanthomonas camperistris pv. oryzae) in rice

For determining the inheritance of bacterial blight(BB) resistance in japonica type rice, seven varieties, which are the major germplasm for BB resistance in Korea, were crossed with susceptible varieties. The F₁ and F₂ plants were tested for their reactions to the BB strain of 8070JN(K₁) at their maximum tillering stage. BB resistance is controlled by a single dominant gene in the varieties of Ishiokamochi 7, Kanto PL 2, Kanto PL 6, Chukei 314 and Chukoku 45. Seomjinbyeo possesses the same resistant gene with Ishiokamochi 7, Kanto PL 2 and Kanto PL 6, but the gene is different from that of Chukei 314 and Chukoku 45. The BB resistance and the purple apiculus calor are independently inherited in Ishiokamochi 7.