Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Characterization of the Stigma side Self-incompatibility Genes in a Self-compatible Brassica oleracea

자가화합성 양배추의 주두측 자가불화합성 유전자 해석

  • Park, Jong-In (Department of Horticulture, Sunchon National University) ;
  • Lee, In-Ho (Department of Horticulture, Sunchon National University) ;
  • Jung, Gun-Ho (National Institute of Crop Science, RDA) ;
  • Nou, Ill-Sup (Department of Horticulture, Sunchon National University)
  • Published : 2009.11.30
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Abstract

In Brassica, S locus glycoprotein (SLG) and S locus receptor kinase (SRK) genes function together for self-recognition in the self-incompatibility response. In addition, a water channel called aquaporins (MOD) is required for the self-incompatibility response. In this study, we isolated the SC-SLG, SC-SRK, and SC-MOD genes from a self-compatible line of B. oleracea. In the self-compatible line, the SC-SLG, SC-SRK, and SC-MOD genes showed the highest degree of sequence similarity with published data and to normal expression by RT-PCR. Therefore, it can be concluded that the SCR/SP11 gene of the B. oleracea pollen may not function and/or that mutations may occur in genes for self-incompatibility that are not linked to the S locus region.

배추과에 있어서 SLG (S locus glycoprotein)와 SRK (S locus receptor kinase) 유전자는 자가불화합성의 인식반응에 관여한다. 또한 수화작용에 중요한 aquaporin (MOD) 유전자 역시 자가불화합성 작용에 요구된다. 본 실험은 양배추 자가화 합성(SC) 계통으로부터 SC-SLG, SC-SRK, 및 SC-MOD 유전자들을 동정하고 이들 유전자의 물리적 구조를 분석하였다. 그 결과 이들 유전자들은 기존에 보고된 유전자들과 높은 상동성을 보였고 RT-PCR에 의한 발현 해석에 있어서 정상적인 발현을 나타내었다. 이들 결과들로 부터, 자가화합 양배추 계통은 주두측 자가불화합성 유전자에 이상이 있는 것이 아니라 화분측 자가불화합성 유전자의 이상 그리고/또는 S-locus에 연쇄 되어 있지 않지만 자가불화합성에 관여하는 유전자의 변이에 의해 자가불화합성이 타파되었다고 생각된다.

Keywords

References

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