Three new Dioszegia species (Bulleribasidiaceae, Tremellales) discovered in the phylloplane in China

By

Qiao, Yazhuo
Liu, Shan
Niu, Qiu-Hong
Hui, Feng-Li

Type

Article

Date of Publication

2024

Original Publication

MycoKeys

Volume

101

Pages

313--328

Subjects

Basidiomycota , leaf , phylogenetic analysis , taxonomy , Tremellomycetes

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.101.117174

 

Abstract

The genus Dioszegia is comprised of anamorphic basidiomycetous yeasts and is classified in the family Bulleribasidiaceae of the order Tremellales. Currently, 24 species have been described and accepted as members of the genus, although its diversity and global distribution have not been thoroughly investigated. In this study, yeasts were isolated from plant leaves collected in the Guizhou and Henan Provinces of China and identified through a combination of morphological and molecular methods. Phylogenetic analyses of the combined ITS and LSU sequences coupled with morphological studies revealed three novel species, D. guizhouensissp. nov., D. foliicolasp. nov., and D. aurantiasp. nov., proposed here. Additionally, our phylogenetic analyses suggest that the recently discovered species D. terrae is a synonym of D. maotaiensis. This study presents detailed descriptions and illustrations of three new Dioszegia species and highlights distinctions between them and their close relatives. The findings of this study contribute to our knowledge of the biodiversity of Dioszegia, offering a foundation for future research.