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Molecular evidence for teleomorph–anamorph connections in Cordyceps based on ITS-5.8S rDNA sequences

Published online by Cambridge University Press:  13 November 2002

Zuo-yi LIU ,
Zong-qi LIANG ,
Ai-ying LIU ,
Yi-jian YAO ,
Kevin D. HYDE  and
Zi-niu YU
Zuo-yi LIU
Affiliation:
College of Biological Technology, Guizhou University, Guiyang 550025, Guizhou, Province, People's Republic of China Guizhou Academy of Agricultural Science, Guiyang 550006, Guizhou Province People's Republic of China
Zong-qi LIANG
Affiliation:
College of Biological Technology, Guizhou University, Guiyang 550025, Guizhou, Province, People's Republic of China
Ai-ying LIU
Affiliation:
College of Biological Technology, Guizhou University, Guiyang 550025, Guizhou, Province, People's Republic of China
Yi-jian YAO
Affiliation:
Systematic Mycology & Lichenology Laboratory, Institute of Microbiology, Academia Sinica, Beijing, 100081, People's Republic of China
Kevin D. HYDE
Affiliation:
Centre for Research in Fungal Diversity, Department of Ecology and Diversity, The University of Hong Kong, Pokfulam Road, Hong Kong SAR
Zi-niu YU
Affiliation:
College of Biological Science, Huazhong Agricultural University, Wuhan 430070, Hubei Province, People's Republic of China
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Abstract

The relationship between teleomorphs of Cordyceps spp. and their presumed anamorphs have been investigated by analysis of 5.8S and ITS rDNA sequences. The morphological and sequence data confirm that Paecilomyceshawkesii is the anamorph of Cordyceps gunnii, while Cordyceps hawkesii is a synonym of C. gunnii, and P. gunnii is a synonym of P. hawkesii. The following presumed connections are also confirmed: Beauveria brongniartii is the anamorph of C. brongniartii, Metarhizium anisopliae var. majus is the anamorph of C. brittlebankisoides, Beauveria sobolifera is the anamorph of C. sobolifera, Mariannaea pruinosa is the anamorph of C. pruinosa, Paecilomyces militaris is the anamorph of C. militaris, and Hirsutellasinensis is the anamorph of C. sinensis. The other isolates sequenced are unlikely to be anamorphs of the teleomorphs from which they were isolated because the sequences from the culture and the teleomorph are quite different. 5.8S and ITS sequences provide useful information for establishing anamorph–teleomorph connections and assisting in the delimitation of species within Cordyceps.

Type
Research Article
Information
Mycological Research , Volume 106 , Issue 9 , September 2002 , pp. 1100 - 1108
Copyright
© The British Mycological Society 2002

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