Gene Analysis of Resistance to Bacterial Blight, Xanthomonas oryzae pv. oryzae in Korean Six Rice Cultivars

Ryuk, Jin Ah; Choi, Chun Hwan; Kang, Hee Kyoung; Choi, Jae Eul

Research in Plant Disease 2004;10(1):73-77.
Published online March 30, 2004.

우리나라 6개 벼 품종의 흰잎마름병 저항성 유전자 분석

육진아, 최춘환, 강희경, 최재을

Gene Analysis of Resistance to Bacterial Blight, Xanthomonas oryzae pv. oryzae in Korean Six Rice Cultivars

Jin Ah Ryuk, Chun Hwan Choi, Hee Kyoung Kang, Jae Eul Choi

Abstract

The gene analysis of resistance in rice cultivars, Daeanbyeo, Hwasunchalbyeo, Daejinbyeo, Naepungbyeo, Hwajinbyeo and Surabyeo to strains of Xanthomonas oryzae pv. oryzae was studied. F1 plants and F2 populations from the crosses between six cultivars and near isogenic lines carrying the single bacterial blight(BB) resistance gene were analyzed using Korean and Japanese BB races. Daeanbyeo, Hwasunchalbyeo, Daejinbyeo, Naepungbyeo, Hwajinbyeo and Surabyeo are alleic with IRBB101 but are non-alleic with IRBB104 and IRBB105. The allelic tests indicated that Daeanbyeo, Hwasunchalbyeo, Daejinbyeo, Naepungbyeo, Hwajinbyeo and Surabyeo have the Xal gene for resistance.

Key Words: Bacterial blight, Gene analysis, Resistance, Xanthomonas oryzae pv. oryzae