지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Rice is a source of food supply as the staple food. The narrow genetic diversity of Korean Japonica cultivars is proneto be susceptible to abiotic and biotic stresses such as rice blast, bacterial blight, and brown planthopper (BPH). The bestapproach for prevention of the breeding and extermination of disease and insect pest would be the development of rice cultivarsharboring multiple disease and insect pest resistance genes. National Institute of Crop Science (NICS) in Korea developed amutant line, Namil(EMS)-bl10,bph1, by using ethyl-methane-sulfonate (EMS) as the chemical mutagen on the wild type, Namil.
The mutant line exhibits strong resistance levels against rice blast and brown planthopper. To localize favorable mutated alleletypes, two mapping populations were constructed by using F2 progenies derives crosses between Namil(EMS)-bl10,bph1 andMilyang23 and Namil (wild type) and Milyang23. Each F2 progenies were evaluated in terms of DNA marker genotype as wellas agronomic traits measured, and for rice blast and BPH resistance, virulent blast isolate 94-254 and Korean biotype of BPHwere used to screen F2:3 seedlings to conduct association analysis between marker genotype and evaluated phenotype of progenylines. Through comparisons on major loci between two mapping populations, the putative major loci for rice blast resistance(RM1337, R2=54.4%) and BPH (RM0277, R2=55.1%) were primarily localized on chromosome 12.
목차
등록된 정보가 없습니다.
참고문헌 (27)
참고문헌 신청
Brar DS / 1997 / Alien introgression in rice / Plant Mol Biol 35 : 35 ~ 47
Choi HC / 2006 / A guide to rice breeding. National Institute of Crop Science / R.D.A : 107 ~ 109
Ha WH / 2000 / Detection of resistance gene to brown planthopper (Nilaparvata lugens Stal.) using RFLP and isozyme markers in rice / Korean J. Breed. Sci 32 : 319 ~ 322
Han SS / 1994 / Regional and annual fluctuation of race distribution of rice blast fungus (Pyricularia grisea Sacc.) during 1986～1992 in Korea / Korean J. Plant Pathol 10 :
Han SS / 1995 / Incidence of panicle blast, race distribution during 1993～1994 and pathogenicity of new races of Pyricularia grisea in Korea / Korean J. Plant Pathol 11 : 23
Choi HC / 2006 / A guide to rice breeding. National Institute of Crop Science / R.D.A : 107 ~ 109
Ha WH / 2000 / Detection of resistance gene to brown planthopper (Nilaparvata lugens Stal.) using RFLP and isozyme markers in rice / Korean J. Breed. Sci 32 : 319 ~ 322
Han SS / 1994 / Regional and annual fluctuation of race distribution of rice blast fungus (Pyricularia grisea Sacc.) during 1986～1992 in Korea / Korean J. Plant Pathol 10 :
Han SS / 1995 / Incidence of panicle blast, race distribution during 1993～1994 and pathogenicity of new races of Pyricularia grisea in Korea / Korean J. Plant Pathol 11 : 23
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