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Phylogenetic Study of Ganoderma applanatum and Schizopora paradoxa Basd on 5S rRNA Sequences (5S rRNA 염기서열에 으한 잔나비걸상과 좀구멍버섯의 계통학적 연구)

  • Kim, Hak-Hyun;Jung, Hack-Sung
    • Korean Journal of Microbiology
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    • v.32 no.3
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    • pp.177-181
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    • 1994
  • The sequences of the cytoplasmic 5S rRNAs(EMBL accession number X73589 and X73890) from two polupores, Ganoderma applanatum and Schizopora paradoxa, were determined by the direct chemical method for sequencing RNA and compared to the sequences of 9 reported mushrooms. 5S rRNAs of Ganoderma applanatum and Schizopora paradoxa consisted of 118 bases and fit the secondary structure model of the 5S rRNAs of basidiomycetes proposed by Huysmans et al. Based on Kimura’s K_nuc values, the closest fungus to Ganoderma applanatum was Ceratobasidium cornigerum and the one to Schizopora paradoxa was Bjerkandera adusta. When the secondary structures of 5S rRNAs of 11 mushrooms were compared the base substitution occurred at helix regions more than at loop regions. When a phylogenetic tree was constructed using the Neighbor program of the PHYLIP package, it partially discriminated and separated the mushrooms of the Hymenomycetes by the order.

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