Morphological Variety in Distoseptispora and Introduction of Six Novel Species

Distoseptispora is one of the sporidesmium-like taxa with great variation in asexual morphology and delineation of species. Phylogenetic analyses of four gene regions LSU, ITS, TEF1α, and RPB2 revealed the placement of several sporidesmium-like species in Distoseptispora (Distoseptisporaceae, Distos...

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Published inJournal of fungi (Basel) Vol. 7; no. 11; p. 945
Main Authors Yang, Jing, Liu, Ling-Ling, Jones, E. B. Gareth, Li, Wen-Li, Hyde, Kevin D., Liu, Zuo-Yi
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 09.11.2021
MDPI
Subjects
generic delimitation
Introduced species
molecular phylogeny
Morphology
multi-gene
New species
new taxa
Phylogenetics
Phylogeny
Septum
sporidesmium-like taxa
Taxonomic significance
Thailand
United States > US
China
Japan
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Summary:Distoseptispora is one of the sporidesmium-like taxa with great variation in asexual morphology and delineation of species. Phylogenetic analyses of four gene regions LSU, ITS, TEF1α, and RPB2 revealed the placement of several sporidesmium-like species in Distoseptispora (Distoseptisporaceae, Distoseptisporales, Sordariomycetes), collected on submerged decaying twigs from streams in China and Thailand. Based on morphological examination and molecular DNA data, six new species, Distoseptispora amniculi, D. atroviridis, D. effusa, D. fusiformis, D. hyalina, and D. verrucosa, are proposed. Among them, D. hyalina is the first sexual morph confirmed in the genus. A new geographical record is reported for D. lignicola in China. Conidial length proved to be of less taxonomic significance for some Distoseptispora species, whereas the type of conidial septa is informative at species level.
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ISSN:2309-608X
2309-608X
DOI:10.3390/jof7110945