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SSR 분자표지이용 콩 불마름병 저항성 관여 양적형질 유전자좌(QTL) 분석 KCI 등재

Identification of Quantitative Trait Loci Associated with Resistance to Bacterial Pustule (Xanthomonas axonopodis pv. glycines) in Soybean

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한국육종학회지 (Korea Journal of Breeding Science)
한국육종학회 (The Korean Breeding Society)
초록

본 연구는 최근 우리나라에서 급격하게 발생되고 있는 콩 불마름병에 대한 저항성 중간모본을 육성하고자 할 때 marker-assisted selection에 적용할 수 있는 저항성 근접 분자표지를 개발하고자 수행하였다. 1. 불마름병에 이병성인 큰올콩과 저항성인 신팔달콩의 RIL 116 계통에 대하여 콩 불마름병 균주 8ra에 대한 저항성과 연관된 QTL을 탐색한 결과 포장에서는 연관군 B2, D2, I와 K에서, 온실에서는 연관군 D2, C1과 F에서

Bacterial pustule (BP), caused by Xanthomonas axonopodis pv. glycines, is prevalent disease in major soybean production areas. BP can reduce seed yield as well as seed quality. To identify the genomic region associated with the resistance to BP, QTL analysis was conducted using F10 RIL (recombinant inbred lines) population, Keunolkong×Shinpaldalkong. Four QTLs for BP disease were identified on the linkage group B2, D2, I and K in field accounts for 36.4% of the phenotypic variation. Especially, QTL at near of Satt135 on LG D2 was identified in green house experiment explaining 20.9% of the phenotypic variation was found to be a major QTL conferring BP. One of these QTLs, Satt135 on the LG D2, was also identified in green house experiment. In both field and green house condition, the position of major QTL for BP was detected between Satt135 and Satt397 on the LG D2. The major QTL for BP may be used for minimizing soybean BP through effective markerassisted selection (MAS).

저자
  • 서민정(농촌진흥청) | Min Jung Seo
  • 강성택(농촌진흥청) | Sung Taeg Kang
  • 문중경(농촌진흥청) | Jung Kyung Moon
  • 이석기(농촌진흥청) | Seuk Ki Lee
  • 김율호(농촌진흥청) | Yul Ho Kim
  • 정광호(농촌진흥청) | Kwang Ho Jeong
  • 윤홍태(농촌진흥청) | Hong Tae Yun