Cho, Yoonhee
- Department of Forest Bioeconomy and Technology, Swedish University of Agricultural Sciences
- Seoul National University
Abstract
Crust-like Sebacinaceae, comprising the genera Helvellosebacina, Sebacina, and Tremelloscypha, represent the only ectomycorrhizal lineage within the Sebacinaceae family. However, species delimitation within this group remains challenging because of their cryptic lifestyles, inconspicuous morphological traits, and limited taxonomic annotation. To address these limitations, we investigated crust-like Sebacinaceae in Asia by integrating two datasets: specimen-derived (barcoding) sequence data and root-associated metabarcoding data. A high diversity of crust-like Sebacinaceae species was uncovered, most of which did not match any previously described taxa. Multigene phylogenetic analyses (ITS, LSU, and rpb2) based on basidiomata identified eleven distinct species, of which six are proposed here as new to science. In parallel, metabarcoding data revealed additional crust-like Sebacinaceae species and confirmed their ectomycorrhizal association with Pinus and Quercus species. These findings advance our understanding of crust-like Sebacinaceae diversity and ecology in previously unexplored regions.
Keywords
Early-diverging species; ectomycorrhiza; Helvellosebacina; metabarcoding; new species; phylogeny; Sebacina; Tremelloscypha
Published in
IMA fungus
2026, volume: 17, article number: e168486
Publisher: PENSOFT PUBLISHERS
SLU Authors
UKÄ Subject classification
Microbiology
Publication identifier
- DOI: https://doi.org/10.3897/imafungus.17.168486
Permanent link to this page (URI)
https://res.slu.se/id/publ/146080