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Race Classification of the Bacterial Blight Pathogen, Xanthomonas oryzae pv. oryzae, by Rice NILs with Single Resistance Genes

벼 흰잎마름병 저항성 유전자를 갖고 있는 준동질 계통을 이용한 벼 흰잎마름병균의 레이스 분류

  • 최재을 (충남대학교 농업생명과학대학 식물자원학부) ;
  • 김보라 (충남대학교 농업생명과학대학 식물자원학부) ;
  • 한진수 (충남대학교 농업생명과학대학 식물자원학부) ;
  • 강희경 (공주대학교 농업생명과학대학 식물생산과학부) ;
  • 허성기 (농촌진흥청 농업과학기술원)
  • Published : 2008.12.01

Abstract

One hundred and three isolates of Xanthomonas oryzae pv. oryzae in Korea were evaluated for their virulence on four near-isogenic lines (NILs) containing a single resistance gene, and Korean differential varieties. The resistant gene backgrounds of Cheongcheongbyeo, Pungsanbyeo, Hangangchalbyeo, Milyang42 were not completely understood and they were not suited for the classification of X. oryzae pv. oryzae. Four NILs, IRBB101, IRBB103, IRBB105, and IRBB107 were difference for characterizing races of X. oryzae pv. oryzae because they have a single resistance gene. These NILs may be useful differential set in examining pathogenic races of X. oryzae pv. oryzae in Korea. Based on the virulence of 103 isolates to new differential varieties, they were classified into 3 races.

국내에서 수집한 103 금주의 벼 흰잎마름병 균주를 한국 판별품종과 한 개의 저항성 유전자를 갖고 있는 4개의 준동질 계통에 병원성을 검정하였다. 청청벼, 풍산벼, 한강찰벼, 밀양42호는 저항성 유전자의 배경을 완전히 알 수 없어 벼 흰잎마름병균의 분류에 적합하지 않았다. IRBB101, IRBB103, IRBB105, IRBB107의 계통은 1개의 저항성 유전자를 갖고 있어 벼 흰잎마름병 균주의 레이스를 구분할 수 있었다. 이 계통들은 우리나라 벼 흰잎마름병균의 분류하는 판별품종으로 유용할 것으로 생각된다. 우리나라 벼 흰잎마름병 균주는 4개의 NIL과의 반응에 따라 3개의 레이스로 분류하였다.

Keywords

References

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