Morphological and phylogenetic analyses reveal two new species in Conidiobolus s.s. (Conidiobolaceae, Entomophthorales) from China

Yong Nie; Yue Cai; Heng Zhao; ZhengYu Zhou; ChangWei Zhao; XiaoYong Liu; Bo Huang

doi:10.3897/mycokeys.98.103603

Morphological and phylogenetic analyses reveal two new species in Conidiobolus s.s. (Conidiobolaceae, Entomophthorales) from China

MycoKeys. 2023 Jul 5:98:221-232. doi: 10.3897/mycokeys.98.103603. eCollection 2023.

Authors

Yong Nie^{1

2}, Yue Cai³, Heng Zhao⁴, ZhengYu Zhou², ChangWei Zhao², XiaoYong Liu⁵, Bo Huang¹

Affiliations

¹ Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China Anhui Agricultural University Hefei China.
² School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, China Anhui University of Technology Ma'anshan China.
³ Department of Biological and Environmental Engineering, Hefei University, Hefei 230601, China Hefei University Hefei China.
⁴ Institute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
⁵ College of Life Sciences, Shandong Normal University, Jinan 250014, China Shandong Normal University Jinan China.

Abstract

The genus Conidiobolus s.s. (Conidiobolaceae, Entomophthorales) has been delimited to accommodate members that produce microspores. Herein, morphological studies, combined with phylogenetic analysis based on the nuclear large subunit of rDNA (nucLSU), the mitochondrial small subunit of rDNA (mtSSU), and the elongation-factor-like gene (EFL) revealed two Conidiobolus s.s. species isolated from plant debris in China. Conidioboluslongiconidiophorussp. nov. is mainly characterised by its long primary conidiophores, while Conidioboluspolysporussp. nov. is diagnosed by 2-3 primary conidia arising from branched primary conidiophores. Phylogenetically, the former is grouped into a separate clade, while the latter is closely related to C.incongruus, but is morphologically distinguished by its larger primary conidia and branched conidiophores.

Keywords: Conidiobolaceae; microspore; morphology; new taxa; phylogeny.

Yong Nie, Yue Cai, Heng Zhao, ZhengYu Zhou, ChangWei Zhao, XiaoYong Liu, Bo Huang.