Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
권호 표지

Genetic Analysis of 5 Mountain Cultivated Ginseng and Wild Ginseng in Korea

국내 5개 지역의 장뇌삼과 산삼의 유전 분석

  • Ahn, Ji-Young (Department of Environmental Science and Ecological Engineering, Dongguk University) ;
  • Kang, Sang-Gu (School of Biotechnology, Yeungnam University) ;
  • Kang, Ho-Duck (Department of Environmental Science and Ecological Engineering, Dongguk University)
  • 안지영 (동국대학교 환경생태공학과) ;
  • 강상구 (영남대학교 생명공학부) ;
  • 강호덕 (동국대학교 환경생태공학과)
  • Received : 2009.10.13
  • Accepted : 2009.12.04
  • Published : 2009.12.31
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Abstract

ISSR PCR technique was applied to investigate genetic relationship among 5 Mountain cultivated ginseng populations (Jinan, Hongcheon, Punggi, Andong and Yeongju) and cDNA libraries of wild ginseng roots were constructed and analyzed functional genes related to morphogenesis via EST. Twenty four ISSR markers tested produced 127 polymorphic loci from 5 regional Mountain cultivated ginseng. Among the regional samples, Yeongju was made 18 polymorphic loci that were the highest level of variations among the cultivated regions. The range of similarity coefficient was 0.46~0.58 and the regional samples of Punggi and Hongcheon, Jinan and Andong were classified to similar groups respectively, whereas Yeongju was shown to be separate group with high level of genetic variation in UPGMA cluster analysis. As a result, there was no relationship according to geographical distance and genetic similarity. Eleven cDNA clones were consisted of 9 known genes and 2 unknown genes analyzed by BLAST program of NCBI. To recognize expression pattern of Homeodomain transcription factor related genes, Northern Blot analysis was performed for wild ginseng's leaf and root. As a result, the gene was only expressed by Mountain wild ginseng root.

우리나라에서 주요 장뇌삼 재배지역인 진안, 홍천, 풍기, 안동, 영주 등 5개 지역을 대상으로 지역 간 유연관계를 분석하였으며 산삼의 cDNA library 구축을 통하여 EST 분석을 실시하였다. 24개의 ISSR 표지자를 이용하여 PCR을 수행한 결과, 총 127개의 다형적 증폭산물을 얻을 수 있었으며 지역별로는 영주가 다형적 증폭산물의 수가 18개로 가장 많았다. 유집분석을 수행한 결과, 지역 간 유사도 범위는 0.46~0.58의 범위로 나타났고 영주를 제외한 홍천과 풍기, 안동과 진안이 각각 다른 그룹을 형성함에 따라 지리적 거리와 유전적 유사도와의 관련성은 찾을 수 없었다. 산삼 뿌리에서 cDNA library를 구축하여 EST를 통해 유전자 기능을 분석하였으며 11개의 cDNA의 염기서열을 결정한 후 아미노산 상동성을 비교한 결과, 9개의 EST들이 기능이 알려진 유전자들과 상동성을 나타내었고 2개는 기능이 알려지지 않은 것으로 나타났다. 특히 Homeodomain transcription factor 유전자와 상동성을 나타낸 PGM002를 탐침 DNA로 만들어 장뇌삼의 잎과 뿌리를 대상으로 Northern Blot을 실시한 결과, 장뇌삼의 뿌리에서만 발현되는 전사체임을 확인하였다.

Keywords

Acknowledgement

Grant : 국내산 장뇌산삼의 유전적 식별 기술 개발

Supported by : 농림기술센터

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