Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)

Myxomycetes play crucial ecological roles, yet their species diversity, distribution, and taxonomic relationships remain poorly understood. In this study, we examined 104 specimens from 19 provinces in China. Through morphological analysis, we identified a group of species with reduced lime formatio...

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Main Authors: Xuefei Li, Jiajun Hu, Yonglan Tuo, You Li, Dan Dai, Frederick Leo Sossah, Minghao Liu, Jiajia Wang, Jiage Song, Bo Zhang, Xiao Li, Yu Li
Format: Article
Language:English
Published: Taylor & Francis Group 2025-01-01
Series:Mycology
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Online Access:https://www.tandfonline.com/doi/10.1080/21501203.2024.2410508
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author Xuefei Li
Jiajun Hu
Yonglan Tuo
You Li
Dan Dai
Frederick Leo Sossah
Minghao Liu
Jiajia Wang
Jiage Song
Bo Zhang
Xiao Li
Yu Li
author_facet Xuefei Li
Jiajun Hu
Yonglan Tuo
You Li
Dan Dai
Frederick Leo Sossah
Minghao Liu
Jiajia Wang
Jiage Song
Bo Zhang
Xiao Li
Yu Li
author_sort Xuefei Li
collection DOAJ
description Myxomycetes play crucial ecological roles, yet their species diversity, distribution, and taxonomic relationships remain poorly understood. In this study, we examined 104 specimens from 19 provinces in China. Through morphological analysis, we identified a group of species with reduced lime formation, a feature typically associated with the Physaraceae, but with key morphological similarities to the Diderma. A comprehensive phylogenetic analysis was conducted using three genes (nSSU, EF-1α, and COI), resulting in a dataset of 452 sequences from 116 species. Notably, we identified a distinct clade within Didymiaceae containing species with fewer lime knots, a trait traditionally linked to Physaraceae. This clade, designated as the new genus Neodiderma, was phylogenetically positioned as a sister group to Diderma, potentially representing a transitional group between Didymiaceae and Physaraceae, supported by both morphological and molecular evidence. Eleven new species — N. macrosporum, N. pseudobisporum, N. verrucocapillitium, N. rigidocapillitium, N. rufum, Physarum guangxiense, P. subviride, P. nigritum, P. biyangense, P. neoovoideum, and P. jilinense — were identified from China, and their phylogenetic positions were analysed. Additionally, N. spumarioides (formerly Diderma spumarioides) was recombined. The new and recombined species were formally described and illustrated, and a key to the sections and species of Neodiderma and Physarum was provided.
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spelling doaj-art-0ffff810c0af4a8baebaa855bdbf37ab2025-08-20T02:29:55ZengTaylor & Francis GroupMycology2150-12032150-12112025-01-0116112415710.1080/21501203.2024.2410508Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)Xuefei Li0Jiajun Hu1Yonglan Tuo2You Li3Dan Dai4Frederick Leo Sossah5Minghao Liu6Jiajia Wang7Jiage Song8Bo Zhang9Xiao Li10Yu Li11Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaCollege of Mycology, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaInnovative Institute for Plant Health/Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaEngineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, ChinaMyxomycetes play crucial ecological roles, yet their species diversity, distribution, and taxonomic relationships remain poorly understood. In this study, we examined 104 specimens from 19 provinces in China. Through morphological analysis, we identified a group of species with reduced lime formation, a feature typically associated with the Physaraceae, but with key morphological similarities to the Diderma. A comprehensive phylogenetic analysis was conducted using three genes (nSSU, EF-1α, and COI), resulting in a dataset of 452 sequences from 116 species. Notably, we identified a distinct clade within Didymiaceae containing species with fewer lime knots, a trait traditionally linked to Physaraceae. This clade, designated as the new genus Neodiderma, was phylogenetically positioned as a sister group to Diderma, potentially representing a transitional group between Didymiaceae and Physaraceae, supported by both morphological and molecular evidence. Eleven new species — N. macrosporum, N. pseudobisporum, N. verrucocapillitium, N. rigidocapillitium, N. rufum, Physarum guangxiense, P. subviride, P. nigritum, P. biyangense, P. neoovoideum, and P. jilinense — were identified from China, and their phylogenetic positions were analysed. Additionally, N. spumarioides (formerly Diderma spumarioides) was recombined. The new and recombined species were formally described and illustrated, and a key to the sections and species of Neodiderma and Physarum was provided.https://www.tandfonline.com/doi/10.1080/21501203.2024.2410508New taxaphylogenetic analysistaxonomyslime mould
spellingShingle Xuefei Li
Jiajun Hu
Yonglan Tuo
You Li
Dan Dai
Frederick Leo Sossah
Minghao Liu
Jiajia Wang
Jiage Song
Bo Zhang
Xiao Li
Yu Li
Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)
Mycology
New taxa
phylogenetic analysis
taxonomy
slime mould
title Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)
title_full Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)
title_fullStr Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)
title_full_unstemmed Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)
title_short Catalogue of fungi in China 4: Didymiaceae and Physaraceae (Myxomycetes)
title_sort catalogue of fungi in china 4 didymiaceae and physaraceae myxomycetes
topic New taxa
phylogenetic analysis
taxonomy
slime mould
url https://www.tandfonline.com/doi/10.1080/21501203.2024.2410508
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