도열병 내구 저항성 자포니카 벼품종 팔공의 저항성 관련 유전좌위 분석

• 영문명: Molecular Mapping of the Blast Resistance Loci in the Durable Resistance Japonica Rice Cultivar, Palgong
• 발행기관: 한국육종학회
• 저자명: 백만기(Man-Kee Baek) 조영찬(Young-Chan Cho) 박현수(Hyun-Su Park) 정종민(Jong-Min Jeong) 김우재(Woo-Jae Kim) 남정권(Jeong-Kwon Nam) 김춘송(Choon-Song Kim) 권순욱(Soon-Wook Kwon) 김보경(Bo-Kyeong Kim)
• 간행물 정보: 『한국육종학회지』Vol.51 No.4, 395~403쪽, 전체 9쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2019.11.30

영문 초록

Rice blast caused by the fungus Magnaporthe grisea (anamorphic: Pyricularia oryzae) is an important disease in rice and development of resistant varieties to blast is one of the most important goals in rice breeding programs. A japonica rice variety, Palgong, has shown resistance to the Korean blast pathogen since it was developed in 1996. Nine blast resistance quantitative trait loci (QTLs) in Palgong alleles were identified on chromosomes 2, 4, 7, and 11. Four QTLs of qBn2.3, qBn4.2, qBn11.1, and qBn11.2 explained 28–56.7% of total phenotypic variation, while five QTLs of qBn2.2, qBn2.4, qBn4.1, qBn7.1, and qBn7.2 explained 9.7–18.8%. In a previous study, one to four resistance genes were located on the loci qBn2.2, qBn2.3, qBn4.2, qBn11.1, and qBn11.2, however, resistance genes were not located on the loci qBn2.4, qBn4.1, and qBn7.1. A major QTL, qBn11.2, explaining 56.7% of total phenotypic variation was related to the durable resistance of Palgong. Additionally, rice stripe virus resistance of Palgong was assumed to be based on the Stvb-i gene, which is located on a major QTL qBn11.2.

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키워드

rice Palgong blast durable resistance gene