Multi-gene phylogeny and taxonomy of the genus Bannoa with the addition of three new species from central China

Frontiers in Microbiology

Microbiology

Ting Lei¹  Feng-Li Hui²  Chun-Yue Chai²  Xue-Ying Chu³ 

[1] School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, China;School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, China;Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, Nanyang Normal University, Nanyang, China;School of Water Resources and Environment Engineering, Nanyang Normal University, Nanyang, China;

关键词: Basidiomycota;    morphology;    multigene analyzes;    plant leaves;    three new species;   

DOI  :  10.3389/fmicb.2023.1143156

 received in 2023-01-12, accepted in 2023-02-24,  发布年份 2023

来源: Frontiers

【 摘 要 】

The genus Bannoa is a small group of ballistoconidium-forming yeasts in the family Erythrobasidiaceae (Cystobasidiomycetes). Prior to this study, seven species belonging to this genus have been described and published. In this study, phylogenetic analyzes of Bannoa based on the combined sequences of the small ribosomal subunit (SSU) rRNA gene, the internal transcribed spacer (ITS) regions, the D1/D2 domains of the large subunit rRNA gene (LSU) and the translation elongation factor 1-α gene (TEF1-α) were conducted. Three new species, namely B. ellipsoidea, B. foliicola, and B. pseudofoliicola, were delimited and proposed based on morphological and molecular evidence. B. ellipsoidea was found to be closely related to the type strains of B. guamensis, B. hahajimensis, and B. tropicalis, but with 0.7–0.9% divergence (4–5 substitutions) in the LSU D1/D2 domains and 3.7–4.1% divergence (19–23 substitutions and one−two gaps) in the ITS regions. B. foliicola was found to belong to the same clade as B. pseudofoliicola from which it differed by 0.4% divergence (two substitutions) in the LSU D1/D2 domains and 2.3% divergence (13 substitutions) in the ITS regions. The distinguishing morphological characteristics of the three new species, with respect to closely related taxa, are discussed. The identification of these new taxa significantly increases the number of Bannoa that have been described on the surface of plant leaves. Additionally, a key for the identification of Bannoa species is provided.

【 授权许可】

Unknown   
Copyright © 2023 Chai, Lei, Chu and Hui.