식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제41권4호
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  • Pages.324-328
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  • 2011
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  • 1225-8318(pISSN)
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  • 2466-1546(eISSN)
한국식물분류학회 (The Korean Society of Plant Taxonomists)
권호 표지

한국산 흰명아주와 근연종의 세포분류학적 연구

Cytotaxonomical Study of the Chenopodium album and its Related Species in Korea

  • 정영재 (신경대학교 생명공학과) ;
  • 김무열 (전북대학교 생명과학과) ;
  • 이병순 (전주대학교 건강관리전공)
  • Chung, Youngjae (Dept. of Life Science and Biotechnology, Shingyeong University) ;
  • l Kim, Muyeol (Dept. of Biological Sciences, Chonbuk National University) ;
  • Lee, Byongsoon (Dept. of Health Science, Jeonju University)
  • 투고 : 2011.10.27
  • 심사 : 2011.12.13
  • 발행 : 2011.12.31
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초록

한국산 흰명아주(Chenopodium album var. album), 명아주(var. centrorubrum), 가는명아주(var. stenophyllum)를 대상으로 aceto-orcein에 의한 염색체 수와 모양을 조사하였고, 45S rDNA 유전자를 이용한 FISH (fluorescence in situ hybridization) 방법을 수행하여 세포유전학적 유연관계를 고찰하였다. 체세포 염색체 수는 흰명아주와 명아주는 모두 2n = 6x = 54개인 반면에 가는명아주는 2n = 4x = 36으로 뚜렷이 구별되었으며, 기본염색체수는 x = 9 개였다. 명아주속의 염색체에서 45S rDNA의 위치를 알아보기 위한 FISH 결과는 흰명아주의 경우 8개의 signal이, 가는명아주에서는 2개의 signal이 관찰되어 종간 차이를 보였으며, 모두 염색체 말단부위에서 관찰되었다. 염색체의 수와 형태, 45S rDNA를 이용한 FISH 결과는 명아주가 흰명아주에 통합되지만, 가는명아주와는 뚜렷이 구별됨을 지지해 주었다.

The purpose of this study was to analyze the interspecific relationships of Chenopodium album and its related taxa collected in Korea. The 18S-26S ribosomal DNA (45S rDNA) loci were detected directly on mitotic chromosomes by fluorescence in situ hybridization (FISH) and the chromosome numbers were examined using aceto-orcein methods. The chromosomal numbers of Chenopodium album var. album and C. album var. centrorubrum were 2n = 6x = 54, whereas for C. album var. stenophyllum, this number was 2n = 4x = 36. The basic chromosome number was x = 9. The biotin labeled 18S-26S rDNA probe exhibited eight yellow fluorescent signals on the metaphase chromosome of C. album var. album and var. centrorubrum respectively, while two yellow signals of C. album var. stenophyllum were noted. All of the signals on the chromosomes were located at the terminal regions. The chromosome number and FISH findings suggest that C. album var. centrorubrum is merged into var. album and that it is clearly distinguished from C. album var. stenophyllum.

키워드

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