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Taxonomic Study of the Genus Pholiota (Strophariaceae, Basidiomycota) in Korea

Mycobiology 2020년 48권 6호 p.476 ~ 483
이준원, 박명수, 박지현, 조윤희, 김창무, 김창선, 조종원, 임영운,
소속 상세정보
이준원 ( Lee Jun-Won ) - Seoul National University School of Biological Sciences
박명수 ( Park Myung-Soo ) - Seoul National University School of Biological Sciences
박지현 ( Park Ji-Hyun ) - Seoul National University School of Biological Sciences
조윤희 ( Cho Yoon-Hee ) - Seoul National University School of Biological Sciences
김창무 ( Kim Chang-Mu ) - National Institute of Biological Resources Microorganism Resources Division
김창선 ( Kim Chang-Sun ) - Korea National Arboretum Forest Biodiversity Division
조종원 ( Jo Jong-Won ) - Korea National Arboretum Forest Biodiversity Division
임영운 ( Lim Young-Woon ) - Seoul National University School of Biological Sciences

Abstract


The genus Pholiota (Strophariaceae, Basidiomycota) is made up of wood-rotting saprotrophic mushrooms characterized by a yellow or brown pileus with scales and/or slimy, and by a brownish smooth spore with a germ pore. However, these features are not enough to distinguish its species, or separate the genus Pholiota from other brown-spored wood-rotting genera such as Hypholoma and Stropharia. Although internal transcribed spacer (ITS) sequence-based identification has improved identification accuracy for species of Pholiota, most Pholiota species in Korea are reported based on morphological features. To evaluate the taxonomy of Pholiota species, we investigated 62 specimens collected from 1999 to 2019 in Korea using ITS sequence analysis and morphological observation. Twelve of the 16 recorded Pholiota species in Korea were identified. While eight species were clearly separated, the ITS analysis did not distinguish three in the Pholiota adiposa complex. Therefore, further investigation is required to distinguish these three species. ITS sequences deposited in GenBank confirm that P. highlandensis exists in Korea. The presence of the other four Pholiota species could not be confirmed through specimens or sequence information in GenBank. A taxonomic key and the ITS sequence data for Korean Pholiota species are included and can be good baselines for further research on Pholiota taxonomy and diversity.

키워드

ITS; lignocellulase; Pholiota; phylogenetic analysis; taxonomic key

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