Morphological and phylogenetic analyses reveal Xenosporidesmiaceae fam. nov, with seven <i>Xenosporidesmium</i> species.

ABSTRACT: This study introduces a new family, Xenosporidesmiaceae, and describes a novel genus, Xenosporidesmium, along with a new species, Xenosporidesmium caohaiense, based on morphological and phylogenetic analyses. Multi-locus phylogenetic reconstruction (LSU, SSU, ITS, and rpb2) revealed that the new family forms a distinct clade, diverging from Sporidesmiales and Distoseptisporales in Sordariomycetes, and supporting its taxonomic independence. The new species, X. caohaiense, is characterized by dark brown conidiophores and pale brown, distoseptate conidia with mucilaginous sheaths. Additionally, six previously described Sporidesmium species are reclassified into Xenosporidesmium. This study emphasizes the significance of molecular data in resolving tax

SUBMITTER: Liu LL 

PROVIDER: S-EPMC12538220 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature