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Phylogeographic divergences of nuclear ITS sequences in Coprinus species sensu lato

Published online by Cambridge University Press:  01 February 2002

Kwan S. KO
Affiliation:
School of Biological Sciences, Seoul National University, Seoul 151-742, Korea. E-mail:minervas@snu.ac.kr Present address: Department of Microbiology and Cancer Research Center, Seoul National University College of Medicine, Seoul 110-799, Korea
Young W. LIM
Affiliation:
School of Biological Sciences, Seoul National University, Seoul 151-742, Korea. E-mail:minervas@snu.ac.kr Present address: Korean Collection for Type Cultures, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Korea.
Yang H. KIM
Affiliation:
School of Biological Sciences, Seoul National University, Seoul 151-742, Korea. E-mail:minervas@snu.ac.kr Present address: Department of Dermatology, Yonsei University College of Medicine, Seoul 120-749, Korea
Hack S. JUNG
Affiliation:
School of Biological Sciences, Seoul National University, Seoul 151-742, Korea. E-mail:minervas@snu.ac.kr
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Abstract

Phylogeographic divergences of four coprinoid species, Coprinus comatus, Coprinellus disseminatus, Coprinellus micaceus and Coprinopsis lagopus were investigated using nuclear ITS sequences. Each taxon showed genetic variation that corresponds with the geographic origins of collections. Groupings produced from ITS1 and ITS2 sequences were similar together. In C. comatus, East Asian strains were well separated from New Zealand and North American strains. In C. disseminatus, Hawaiian strains formed an independent clade with that from Nepal, separating those from East Asia. And there were two distinct East Asian groups for C. disseminatus. East Asian C. micaceus strains constituted a distinct group from Hawaiian strains. In C. lagopus, Hawaiian and European strains were clearly separated from each other. There was a great genetic diversification in C. disseminatus and C. micaceus from East Asia, suggesting divergence process of these taxa in that region. However, Hawaiian strains lacked genetic variation, which indicated their recent origin in Hawaii.

Type
Research Article
Copyright
© The British Mycological Society 2001

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Footnotes

Paper presented at the Asian Mycological Congress 2000 (AMC 2000), incorporating the 2nd Asia–Pacific Mycological Congress on Biodiversity and Biotechnology, and held at the University of Hong Kong on 9–13 July 2000.