Phylogenetic analysis of the edible <I>Astraeus</I> mushrooms in Thailand and Japan

DOI

説明

Astraeus is the most popular and the most expensive ectomycorrhizal fungus consumed in northern and northeastern part of Thailand while this mushroom is not popular for consumption in Japan. The purpose of this work was to determine the taxonomic relationship between Astraeus samples from Thailand and Japan by morphological and molecular analysis. Astraeus basidiomata were collected from many areas in both countries. All specimens of mature basidiomata were separated into three morphological groups base on the number of peridium ray, and spore ornamentation. One of them was identified as Astraeus oderatus, which were collected only from Thailand and showed the exoperidium with broad ray shape and the long spine of spore ornamentation. The other two groups (Group A, Group B), which were collected from Thailand and Japan, could not be identified as species. ITS (ITS1-5.8s-ITS2) region within rDNA were amplified by PCR and sequenced in some samples, and the sequence data were compared with those of Astraeus in the GenBank. The phylogenetic analysis of ITS sequence clearly separated Thai and Japanese samples into 3 clades, i.e. Astraeus orderatus, A. asiaticus and A. hygrometricus. The morphological group A was divided into A. asiaticus and A. hygrometricus clades, and A. hygrometricus clade also contained morphological group B. Our result shows that phylogenetic analysis can be used to solve the confusion of the morphological character within Astraeus species.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390282680637141760
  • NII論文ID
    130007004629
  • DOI
    10.11556/msj7abst.52.0.43.0
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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