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Li, Chunru, Bo Huang, Meizhen Fan, Yingren Lin & Zengzhi Li. Metacordyceps guniujiangensis and its Metarhizium anamorph: a new pathogen on cicada nymphs. Mycotaxon 111: 221–231. 2010.

ABSTRACT: A new species, Metacordyceps guniujiangensis, collected from Guniujiang Nature Preserve in Anhui Province, southeastern China, is described and illustrated. The anamorph isolated from the ascospores is determined as Metarhizium aff. cylindrosporum. Sequence comparisons of 5.8S ribosomal RNA and complete internal transcribed spacer (ITS) regions from Metacordyceps guniujiangensis and M. aff. cylindrosporum show that the two taxa share the same ITS1-5.8S-ITS2 nucleotide sequences, strongly supporting M. guniujiangensis as the teleomorph of M. aff. cylindrosporum. Molecular phylogenetic analysis agrees with the morphological results and demonstrates that the M. guniujiangensis conidial isolate belongs to the genus Metarhizium. The phylogenetic tree and ITS sequence show the anamorphic species closely related to M. cylindrosporum with a variance at 9.3% (35 bp). The type specimen is deposited at Research Center for Entomogenous Fungi (RCEF), Anhui Agricultural University, China.

KEYWORDS: anamorph-teleomorph connection, Clavicipitaceae, entomopathogenic fungi

   
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