Multigene phylogeny of the family Cordycipitaceae (Hypocreales): new taxa and the new systematic position of the Chinese cordycipitoid fungus Paecilomyces hepiali

• DOI: 10.1007/s13225-020-00457-3
• Publication Date: 2020-08-26T06:02:54Z
• Authors: Yuan-Bing Wang; Yao Wang; Qi Fan; Dong-E Duan; Guo-Dong Zhang; Ru-Qin Dai; Yong-Dong Dai; Wen-Bo Zeng; Zi-Hong Chen; Dan-Dan Li; De-Xiang Tang; Zhi-Hong Xu; Tao Sun; Thi-Tra Nguyen; Ngoc-Lan Tran; Van-Minh Dao; Can-Ming Zhang; Luo-Dong Huang; Yong-Jun Liu; Xiao-Mei Zhang; Da-Rong Yang; Tatiana Sanjuan; Xing-Zhong Liu; Zhu L. Yang; Hong Yu
• Keywords: Gene; Cladistics; Agricultural and Biological Sciences; 03 medical and health sciences; Ascomycota; Biochemistry, Genetics and Molecular Biology; Systematics; Health Sciences; Genetics; Biology; Pharmacology; 0303 health sciences; Genus; Botany; Medicinal Mushrooms: Antitumor and Immunomodulating Properties; Life Sciences; Phylogenetic Analysis; Cell Biology; 15. Life on land; Taxonomy (biology); Entomopathogenic Fungi as Biocontrol Agents; Phylogenetics; Insect Science; FOS: Biological sciences; Hypocreales; Medicine; Taxon; Type species; Zoology; Systematic Entomology; Diversity and Evolution of Fungal Pathogens; Phylogenetic tree

AbstractThe phylogeny and systematics of cordycipitoid fungi have been extensively studied in the last two decades. However, systematic positions of some taxa in the family Cordycipitaceae have not yet been thoroughly resolved. In this study, a new phylogenetic framework of Cordycipitaceae is reconstructed using multigene (nrSSU, nrLSU, tef-1α, rpb1 and rpb2) sequence data with large-scale taxon sampling. In addition, ITS sequence data of species belonging to the Lecanicillium lineage in the family Cordycipitaceae are used to further determine their phylogenetic placements. Based on molecular phylogenetic data together with morphological evidence, two new genera (Flavocillium and Liangia), 16 new species and four new combinations are introduced. In the new genus Flavocillium, one new species F. bifurcatum and three new combinations previously described as Lecanicillium, namely F. acerosium, F. primulinium and F. subprimulinium, are proposed. The genus Liangia is built by the new species Lia. sinensis with Lecanicillium-like asexual morph, isolated from an entomopathogenic fungus Beauveria yunnanensis. Due to the absence of Paecilomyces hepiali, an economically and medically significant fungus, in the earlier phylogenetic analyses, its systematic position has been puzzling in both business and academic communities for a long time. Here, P. hepiali is recharacterized using the holotype material along with seven additional samples. It is assigned to the genus Samsoniella (Cordycipitaceae, Hypocreales) possessing Cordyceps-like sexual morph and Isaria-like asexual morph, and thus a new combination, namely S. hepiali is proposed. An additional nine new species in Samsoniella are described: S. alpina, S. antleroides, S. cardinalis, S. cristata, S. lanmaoa, S. kunmingensis, S. ramosa, S. tortricidae and S. yunnanensis. Four new species in Cordyceps are described: C. chaetoclavata, C. cocoonihabita, C. shuifuensis and C. subtenuipes. Simplicillium yunnanense, isolated from synnemata of Akanthomyces waltergamsii, is described as a new species.