Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Chromosome Compositions of Four Cultivated Cucurbitaceae Species.

박과 작물 4종의 핵형분석

  • 권지연 (삼육대학교 과학기술대학 생명과학과) ;
  • 박혜미 (삼육대학교 과학기술대학 생명과학과) ;
  • 이성남 (삼육대학교 과학기술대학 생명과학과) ;
  • 최선희 (삼육대학교 과학기술대학 생명과학과) ;
  • 송경아 (삼육대학교 과학기술대학 생명과학과) ;
  • 김현희 (삼육대학교 과학기술대학 생명과학과)
  • Published : 2008.07.30
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Abstract

The chromosome numbers and compositions were investigated in four cultivated species of Cucurbitaceae; Cucumis sativus L., Citrullus lanatus (Thunb.) Matsum. et Nakai, Cucumis melo L., Luffa cylindrica (L.) Roemer. through general aceto-orcein staining method. The chromosome compositions of four species were diploids of 2n=22, 2n=24 and 2n=26 respectively. The chromosomes were relatively small and showed gradual length degradation from $2.50\;{\mu}m$ to $2.16\;{\mu}m$ in Cucumis sativus, $3.71\;{\mu}m$ to $2.11\;{\mu}m$ in Cucumis melo, $3.20\;{\mu}m$ to $2.40\;{\mu}m$ in Citrullus lanatus and $3.17\;{\mu}m$ to $1.97\;{\mu}m$ in Luffa cylindrica. The chromosome types consisted of all metacentrics in Cucumis sativus, seven pairs submetacentrics and five pairs metacertrics in C. melo, four pairs of submetacentrics and seven pairs metacertrics in Citrullus lanatus, and two pairs submetacentrics and eleven pairs metacentrics in Luffa cylindrica (L.) Roemer.. The satellites were found in a pair of chromosomes in C. melo and two pairs in Luffa cylindrica. The chromosome compositions in these four species showed species-specific patterns and seemed to provide useful informations for breeding and molecular cytogenetic works on Cucurbitaceae.

박과 작물 4종(오이, 수박, 참외, 수세미)에 대한 핵형분석 연구를 수행하였다. 염색체 조성은 모두 이배체로 염색체 수와 형태적 특징에 있어서 종에 따라 차이를 나타냈다. 오이의 핵형은 2n=14=14m, 수박은 2n=22=22m으로 2번 염색체가 부수체를 지니며, 참외는 2n=24=18m+6sm으로 7번 염색체가 부수체를 지니고 있었다. 수세미는 2n=26=26m으로 1번 염색체가 부수체를 지니고 있었다. 핵형분석 결과 종에 따라 특징적인 염색체 수와 조정을 나타내었으며 종간 게놈 구성의 정보에 따른 박과 작물 육종화 작업의 기초 자료를 제공할 수 있으리라 본다.

Keywords

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