Global phylogeny, divergence times and evolutionary history of <i>Trichaptum</i> s.l. (Hymenochaetales, Basidiomycota): two new families and six new species

作者：Meng Zhou, Yujin Cui, Josef Vlasák, Yingda Wu, Chenxi Li, Guangyu Zeng, Lei Zhuang, Yuan Yuan · 发表于：Mycosphere · 年份：2026 · DOI：10.48130/mycosphere-0026-0005 · 被引用次数：1 · 研究领域：Mycorrhizal Fungi and Plant Interactions、Yeasts and Rust Fungi Studies、Lichen and fungal ecology

The species diversity of Trichaptum s.l., a significant group within the polypore fungi, has expanded substantially in recent years. However, its higher-level taxonomy and evolutionary origins remain underexplored. In this study, the evolutionary history of Trichaptum s.l. is presented using phylogenetic, morphological, and molecular-clock analyses. The results resolve Trichaptum s.l. into four families: Hirschioporaceae, Trichaptaceae, and two newly proposed families, Podocarpioporaceae fam. nov. and Pseudotrichaptaceae fam. nov. Consequently, the Trichaptum complex s.l. now comprises seven genera ( Hirschioporus , Nigrohirschioporus , Pallidohirschioporus , Perennihirschioporus , Pseudotrichaptum , Podocarpioporus , and Trichaptum s.s.), and 55 taxa. The six new species from the tropical and subtropical regions are described: Nigrohirschioporus keylargoensis sp. nov., Nigrohirschioporus wuyiensis sp. nov., Perennihirschioporus caymanensis sp. nov., Podocarpioporus hydnoides sp. nov., Trichaptum cystidiolatum sp. nov., and Trichaptum longisporum sp. nov. Molecular clock dating analysis suggests that familial divergence within Trichaptum s.l. occurred during the Cretaceous period (71–119 Mya). Ancestral state reconstruction analysis indicates a complex evolutionary history, potentially originating in Central and East Asia. However, the origins of the four families show notable differences, with two major origin groups in Asia and the Americas. E...