Phylogeny and taxonomy of two new species in Dictyosporiaceae (Pleosporales, Dothideomycetes) from Guizhou, China

By

Feng, Yao
Liu, Zuo-Yi
Chen, Xiao-Fang
Yang, Mi-Lian
Zhang, Zhiyuan
Chen, Yaya

Type

Article

Date of Publication

2024

Original Publication

MycoKeys

Volume

106

Pages

251--264

Subjects

2 new species , Gregarithecium , Multi-locus , new taxa , Pseudocoleophoma , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.106.125693

 

Abstract

Two novel species within the family Dictyosporiaceae are described and illustrated from terrestrial habitats on dead culms of bamboo and an unidentified plant, respectively. Through morphological comparisons and the multi-locus phylogenetic analyses of combined LSU, ITS, SSU, and tef1-α sequence dataset, two species, Gregarithecium bambusicola, Pseudocoleophoma paraphysoidea are identified. Phylogenetically, both species clustered into a monophyletic clade with strong bootstrap support. Gregarithecium bambusicolasp. nov. can be distinguished from other species within the genus based on its almost straight ascospores. Pseudocoleophoma paraphysoideasp. nov. differs from other species in its conidiogenous cells intermixed with paraphyses, longer conidiogenous cells and larger conidia. The identification of this lineage contributes to our understanding of the classification of Dictyosporiaceae.