Morphological and phylogenetic analyses reveal two new species of Tubeufia (Tubeufiales, Tubeufiaceae) from freshwater habitats in China

2025/08/21 by Xiao-Yan Ma, Tian Fu, Jinchao Feng +3 · 1 voice
Biochemistry, Genetics and Molecular Biology · Agricultural and Biological Sciences · #Plant Pathogens and Fungal Diseases #Mycorrhizal Fungi and Plant Interactions #Plant-Microbe Interactions and Immunity

paper · pdf · doi:10.3897/mycokeys.121.158724

openalex publication_date 2025/08/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02

Abstract

Tubeufia is a genus of helicosporous hyphomycetes distinguished by a high degree of morphological variation in its asexual morphs. During an investigation of helicosporous fungi in tropical regions, four fungal strains were isolated from submerged decaying wood in Hainan Province, southern China. Multigene phylogenetic analyses based on a combined ITS–LSU– tef1-α–rpb2 sequence dataset were conducted to determine the phylogenetic placement of the four fungal strains, which showed two distinct new species. Morphological characteristics were also used to support their taxonomic delimitation in addition to the molecular phylogeny. Two novel species, Tubeufia yanuodaensis and T. yinggelingensis , are described and illustrated.

Citations

• IQ-TREE: A Fast and Effective Stochastic Algorithm for Estimating Maximum-Likelihood Phylogenies
• A Beauveria phylogeny inferred from nuclear ITS and EF1-  sequences: evidence for cryptic diversification and links to Cordyceps teleomorphs
• MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability
• SequenceMatrix: concatenation software for the fast assembly of multi-gene datasets with character set and codon information
• A<i>Beauveria</i>phylogeny inferred from nuclear ITS and EF1-α sequences: evidence for cryptic diversification and links to<i>Cordyceps</i>teleomorphs
• Phylogenetic relationships among ascomycetes: evidence from an RNA polymerse II subunit

Discussions

• Two new species of 𝑇𝑢𝑏𝑒𝑢𝑓𝑖𝑎, discovered in freshwater habitats in China, are here described and illustrated. 🔗 doi.org/10.3897/myco... [bsky, 2 points, 1 comments]

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