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Screening of Rice Germplasm for Bakanae Disease Resistance in Rice
벼 키다리병 저항성 유전자원 탐색
Korean J. Breed. Sci. 2016;48(1):022-28
Published online March 31, 2016
© 2016 Korean Society of Breeding Science.

Yeon-Jae Hur1, Sais-Beul Lee1, Dongjin Shin1, Tae-Heon Kim1, Jun-Hyeon Cho1, Sang-Ik Han1,Seong-Hwan Oh1, Ji-Yoon Lee1, Young-Bo Son1, Jong-Hee Lee2, Tackmin Kwon3, No-Bong Park4,Sang-Yeoul Kim4, You-Chun Song1, Min-Hee Nam1, Young-Up Kwon1, and Dong-Soo Park1*

1Paddy Crop Research Division, NICS, RDA, Milyang 50424, Korea2Research Policy Bureau, RDA, Jeonju 54875, Korea3Department of Genetic Engineering, College of Natural Resources and Life Science, Dong-A University, Busan 49315, Korea4Yeongdeok Sub-station, NICS, RDA, Yeongdeok 36405, Korea
1국립식량과학원 남부작물부 논이용작물과, 2농촌진흥청 연구정책국, 3동아대학교 생명자원과학대학 유전공학과, 4국립식량과학원 영덕출장소
Bakanae (foolish seedling) disease caused by Gibberella fujikuroi creates serious problems in the foremost rice growing countries. This study was conducted to identify new resistance genetic sources to Bakanae disease. Bioassay showed that 11 varieties including Gwangmyeongbyeo, Hawn, Wonseadaesoo, Erguailai etc. were resistant to bakanae disease among 254 rice germplasm. Mismatch ratio between phenotype on bakanae disease bioassay and allele type of RM9, a SSR marker closely linked the bakanae disease resistant QTL, qBK1, were 38.3%. These results suggest that RM9 might be used for selecting qBK1, but it cannot be used for wide range of rice germplasm. Resistant germplasm in this study might be have resistant genes different from qBK1. The eleven varieties resistant to selected in this study will be used to identify new resistant alleles or genes to improve bakanae disease resistance in rice.
Keywords : Rice, Bakanae Disease, Resistance, Germplasm, Allele

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