Studies in phylogeny and divergence times of Irpicaceae and Meripilaceae (Polyporales, Basidiomycota), with an emphasis on Ceriporia and Meripilus including ten new species

作者：Chao-Ge Wang, Ying-Da Wu, X. Y. Zhang, Yu‐Cheng Dai, Zhenhao Li, Yuan Yuan · 发表于：IMA Fungus · 年份：2025 · DOI：10.3897/imafungus.16.161336 · 被引用次数：6 · 研究领域：Mycorrhizal Fungi and Plant Interactions、Lichen and fungal ecology、Plant Pathogens and Fungal Diseases

Species in Ceriporia and Meripilus are important wood-decaying fungi causing white rot on both angiosperm and gymnosperm wood. Morphologically, the two genera share similar micromorphology: a monomitic hyphal system of cyanophilous generative hyphae bearing simple septa. Phylogenetic and morphological analyses of Ceriporia and other related genera in Irpicaceae and Meripilus in Meripilaceae were carried out. Ceriporia is characterized by mostly resupinate basidiomata with a white to brightly colored pore surface when fresh, usually without changing color when bruised, and cylindrical to allantoid basidiospores. Meripilus is similar to Ceriporia , but it has resupinate, effused-reflexed to pileate basidiomata, sometimes with an erubescent pore surface when bruised, and ellipsoid to globose basidiospores. Phylogenies of species in the two genera were reconstructed with multiple-loci DNA sequences, including ITS, nLSU, nSSU, TEF1, RPB1, and RPB2, as well as two combined datasets: ITS+nLSU+TEF1+RPB1+nSSU for Ceriporia and ITS+nLSU+TEF1+RPB2+nSSU for Meripilus . Three new species of Ceriporia , one new species of Meruliopsis , and six new species of Meripilus are described and illustrated. Moreover, the evolutionary times of the Polyporales , including Irpicaceae and Meripilaceae , were revealed based on the conserved regions of three-loci DNA sequences (ITS+nLSU+TEF1). Irpicaceae and Meripilaceae are estimated to have emerged at the junction of the early and late Cretaceous, with...