Molecular phylogeny and morphology of <Emphasis Type="Italic">Ophiocordyceps unituberculata</Emphasis> sp. nov. (Ophiocordycipitaceae), a pathogen of caterpillars (Noctuidae,Lepidoptera) from Yunnan,China |
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| Authors: | Yuan Bing Wang Thi Tra Nguyen Yong Dong Dai Hong Yu Wen Bo Zeng Chang Kui Wu |
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| Institution: | 1.Yunnan Herbal Laboratory, Institute of Herb Biotic Resources,Yunnan University,Kunming,China;2.Yunnan Herbal Biotech Co. Ltd,Kunming,China;3.Institute of Ecology and Geobotany, School of Ecology and Environmental Science,Yunnan University,Kunming,China;4.College of Evironment and Resources,Wenshan University,Wenshan,China |
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| Abstract: | Ophiocordyceps unituberculata, a new insect pathogenic fungus from southwestern China, is described using molecular phylogenetic and morphological data. This fungus differs from other Ophiocordyceps species by its enormously long monophialidic conidiogenous cells and a large periclinal protuberance often growing near the apex of conidiogenous cells, single conidia (lanceolate to fusiform) embedded in mucous sheath, and much larger conidial dimensions. Four-locus (nrSSU, nrLSU, tef-1α and rpb1) and ITS data phylogenetic analyses show that O. unituberculata belongs to the Hirsutella nodulosa clade within the genus Ophiocordyceps of Ophiocordycipitaceae and is a separate clade from other allied species. Molecular phylogeny and morphology both strongly support the distinctiveness of this taxon. The interspecific relationships in the H. nodulosa clade are discussed. |
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