Polycephalomycetaceae, a new family of clavicipitoid fungi segregates from Ophiocordycipitaceae

作者：Yuan-Pin Xiao, Yuan Bing Wang, Kevin D. Hyde, Gentekaki Eleni, Jingzu Sun, Yang Yu, Juan Meng, Hong Yu, Ting‐Chi Wen · 发表于：Fungal Diversity · 年份：2023 · DOI：10.1007/s13225-023-00517-4 · 被引用次数：53 · 研究领域：Plant Pathogens and Fungal Diseases、Mycorrhizal Fungi and Plant Interactions、Fungal Biology and Applications

Clavicipitoid fungi comprise three families, namely Clavicipitaceae , Cordycipitaceae , and Ophiocordycipitaceae . They are found worldwide and are specialized pathogens of invertebrate, plant and fungal hosts. Over the last decade, morphology- and phylogeny-based studies on clavicipitoid fungi have increased. The latter have revealed that Polycephalomyces , Perennicordyceps and Pleurocordyceps consistently cluster together. These genera are currently considered as members of Ophiocordycipitaceae . Nonetheless, information with regard to their diversity and ecology remains sparse. To fill this gap, we collected 29 fresh specimens from insect and fungal substrates from tropical and subtropical evergreen forests in Thailand and southwestern China. We performed detailed morphological analyses and constructed photoplates for all isolated fungi. We used extensive taxon sampling and a dataset comprising internal transcribed spacer gene region (ITS), small subunit ribosomal RNA gene region (SSU), large subunit rRNA gene region (LSU), translation elongation factor 1-alpha gene region (TEF-1α), RNA polymerase II largest subunit gene region (RPB1) and RNA polymerase II second largest subunit (RPB2) to infer order-, family and genus-level phylogenetic trees. Based on these biphasic analyses, we segregate Polycephalomyces , Perennicordyceps , and Pleurocordyceps from Ophiocordycipitaceae and introduce the new family Polycephalomycetaceae to accomodate these three genera. The majority of ...