The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Phylogenetic Relationships of Yeast-like Fungi Deduced from Partial Sequences of 18S Ribosomal RNA

18S 리보좀 RNA 부분 염기서열 분석에 의한 효모성 균류의 분자계통학적 연구

  • Jung, Soo-Jin (Department of Microbiology, Pusan National University) ;
  • Shin, Yong-Kook (Korea Research Institute of Bioscience and Biotechnology, Korea Institute of Science and Technology) ;
  • Joo, Woo-Hong (Department of Biology, Changwon National University) ;
  • Lee, Jae-Dong (Department of Microbiology, Pusan National University)
  • 정수진 (부산대학교 미생물학과) ;
  • 신용국 (한국과학기술연구원 생명공학연구소) ;
  • 주우홍 (창원대학교 생물학과) ;
  • 이재동 (부산대학교 미생물학과)
  • Published : 1995.12.30
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Abstract

The evolutionary relationships for 43 species in the taxa of the basidiomycetous yeast and related yeast-like fungi have been studied from the 43 18S rRNA partial sequences. Fibulobasidium inconspicuum showed a relatively close relationship to Filobasidiella neoformans. It is obvious that Tremella foliacea and Ustilogo rabenhorstiana form a independently different cluster from basidiomycetous yeast and seem to be phylogenetically distant from basidiomycetous yeast and each other. The basidiomycetous yeasts are believed more closely associated with Tremella foliacea than with Ustilago rabenhorstiana. The phenotypic criteria such as carotenoid pigments, teliospores, ballistospores seems not to be phylogenetically useful indicators.

담자성 효모와 담자균계의 yeast-like 균류의 총 43개 균류의 18S 리보좀 RNA 부분염기배열을 비교하였다. Fibulobasidium inconspicuum은 Filobasidiella neoformans와 밀접한 유연관계를 보였다. Tremella foliacea, Ustilago rabenhorstiana는 각각 다른 계통지를 형성하여 담자균효모와는 독립적으로 진화해 왔을 가능성을 시사하였다. 담자균효모는 Ustilago rabenhorstiana 보다 Tremella foliacea에 보다 가까운 유연관계를 보였다. 한편, 표현형질 즉 색소, 동포자, 사출포자등은 18S ribosomal RNA의 부분 염기서열 분석 결과 계통학적으로 의미가 없는 것으로 나타났다.

Keywords

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