생명과학회지 (Journal of Life Science)

  • 제13권4호
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  • Pages.400-411
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  • 2003
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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동충하초의 계통분류 및 시판동충하초의 분류학적 위치

Phylogenetic Analysis of the Entomopathogenic Fungal Species and Taxonomical Positions of Their Commercial Products

  • 김순한 (부산지방식품의약품안전청) ;
  • 이영자 (부산지방식품의약품안전청) ;
  • 김인복 (부산지방식품의약품안전청) ;
  • 김미경 (부산지방식품의약품안전청) ;
  • 한정아 (부산지방식품의약품안전청) ;
  • 홍무기 (식품의약품안전청 식품평가부) ;
  • 이순호 (식품의약품안전청 식품평가부) ;
  • 이재동 (부산대학교 생명과학부)
  • 발행 : 2003.08.01
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초록

5.8S rDNA를 포함한 ITS부위에 대한 염기서열 분석결과, 종에 따라 다양한 염기서열을 가지고 있어 분류에 이용될 수 있었으며, 특히 ITS2부위보다 ITS1부위에서 종에 대한 변이율이 높은 것으로 나타났다. 아울러 균종에 따라 정도의 차이는 있으나 사용된 모든 종들이 서로 계통분류학적 거리가 멀어서 종간의 구분이 명확하게 나타났다. P. tenuipes, I. japonica, P. japonicus는 multiple alignment분석에서 매우 유사한 염기서열을 가지고 있어, 이들 세종은 같은 종이지만 다른 이름으로 불리고 있는 것으로 나타났으며, 아울러 Paecilomyces sp. KACC 40220과 KACC 40656도 동일한 염기서열을 가지고 있어 p. tenuipes로 판단된다. 국내에서 유통되는 동충하초제품 35건과 중국산 1건에 대해 실험한 결과 23건은 P. tenuipes / japonica로, 11건은 C. militaris로, 1건은 B. bassiana로 분류되었으며, 중국산 제품 1건은 C. multiaxialis로 분류되었다.

This study was carried out to identify the phylogenetic relationship and to know the distribution of the entomopathogenic fungi by comparing the DNA sequences of internal transcribed spacer regions (ITS1 and ITS2) and 5.8S ribosomal DNA (rDNA) repeat unit. The entomopathogenic fungi had their specific sequences in ITS1 and 2 regions depending on species. The comparison of the ITS sequences of standard strains indicated that the sequences ITS1 were more variable than those of ITS2. It seems that Paecilomyces tenuipes, Isaria japonicus and P. japonicus are the same species but called as different names because of very similar sequences, and unidentified Paecilomyces sp. KACC 40220 and KACC 40656 showed identical sequences to P. tenuipes. Thirty six strains of the commercial products of entomopathogenic fungi used in this study were divided into four groups by the phylogenetic analysis based on 5.85 rDNA and ITS regions. We found twenty-three strains were P. tenuipes / japonica, eleven strains were C. militaris, and other two strains were Beauveria bassiana and C. multiaxialis, respectively.

키워드

참고문헌

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피인용 문헌

  1. Comparison of scanning electron microscopic structures and nucleotide sequences variation of ITS1, 5.8S ribosomal RNA gene and ITS2 region in three Peruvian entomopathogenic fungal isolates vol.51, pp.2, 2013, https://doi.org/10.7852/jses.2013.51.2.137