Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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The Base Sequence of ITS and Genetic Variation in Sarcodon Aspratus

능이버섯의 ITS염기서열과 유전적 변이

  • 김종봉 (대구가톨릭대 생물학과)
  • Published : 2004.12.01
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Abstract

The sequence of ITS (partial 16S ribosomal DNA, complete ITS1, 5.8S ribosomal DNA and ITS2, and partial 28S ribosomal DNA) was analysed by PCR and autosequencing in Sarcodon aspratus. The ITS lenght of S. aspratus was 716 base pair. As this sequence compared with other reports on S. aspratus (ace No AF335110), the sequence variation based on nucleotide deletion and substitution was $1.8\%$. This nucleotide variation rate in same species was very higher than in other species. Also, the sequence varitation rates between this S. aspratus and S. imbricatus, and S. squamus were $8\%\;and\;10\%$, respectively. This results suggested that the high sequence variation of S. aspratus might be caused specific host and inhabitat environment which limited gene flow.

능이버섯의 16S ribosomal DNA일부분, IT1, 5.85 ribosomal DNA, ITS2의 전부분, 28S ribosomal DNA 일부분이 포함된 ITS영역의 염기서열을 분석하였다. 이 부분은 716개의 염기쌍으로 구성되었다. 이를 Sarcadon속에 속하는 종들과 비교분석한 결과 같은 능이버섯의 ITS에 관한 다른 분석결과 염기치환 및 결실을 근거로 하였을 경우 $1.8\%$의 차이를 나타내었다. 또한 S. imbricatus와는 $1.8\%$, S. sequamous와는 $10\%$차이를 나타내었다. 이는 능이버섯이 숙주, 서식지 환경 등의 특수성 때문에 자연상태에서 유전자교류가 일어나지 않기 때문인 것으로 생각된다.

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References

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