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The chalara-like anamorphs of Leotiomycetes

Fungal Diversity 2023年第2期119卷 213-490页

作者： Wenping Wu Yongzhao Diao R&D Center Novozymes ChinaNo.14 Xin Xi LuShang Di ZoneHaidian DistrictBeijing 100085People’s Republic of China

The chalara-like anamorphs of Leotiomycetes are phialidic hyphomycetes with cylindrical collarettes and deeply seated sporulating loci,and hyaline,aseptate or septate,cylindrical conidia.They are commonly found on plant litters in both terrestrial and submerged environments,and with broad geographical distribution.This paper reports our research result of diversity,taxonomy and phylogeny of these fungi in China,which is based on a systematic study by using an integrated approach of literature study,morphological observation and phylogenetic analyses of 153 chalara-like fungal species with diversified morphology in conidiomata,setae,conidiophores,phialides and conidia.The phylogenetic analyses employing different datasets of SSU,LSU and ITS sequences of 116 species showed that these chalara-like fungi were paraphyletic and scattered in 20 accepted genera belonging to five families of Leotiomycetes:Arachnopezizaceae,Hamatocanthoscy-phaceae,Helotiaceae,Neolauriomycetaceae and Pezizellaceae.Additional six genera,Ascoconidium,Bioscypha,Chalaro-dendron,Didonia,Phaeoscypha and Tapesina,all reported with chalara-like anamorphs in literatures,are also accepted as members of Pezizellaceae or Leotiomycetes genera incertae sedis.Among of these 26 accepted genera of chalara-like fungi in Leotiomycetes,17 genera are asexually typified genera(Ascoconidium,Bloxamia,Chalara,Chalarodendron,Constric-tochalara,Cylindrochalara,Cylindrocephalum,Leochalara,Lareunionomyces,Minichalara,Neochalara,Neolauriomyces,Nagrajchalara,Parachalara,Stipitochalara,Xenochalara and Zymochalara),and 9 are sexually typified genera(Bioscypha,Bloxamiella,Calycellina,Calycina,Didonia,Hymenoscyphus,Mollisina,Phaeoscypha and Tapesina).The phylogenetic significance of conidial septation in generic delimitation was further confirmed;while other morphologies such as conidi-omata,setae,conidiophores,phialides,conidial length,and conidial ornamentation have little phylogenetic significance,but could be used for species delimitation.The polyphyletic genus Chalara s

关键词： Leotiomycetes Chalara-like fungi anamorphs Diversity Taxonomy Phylogeny China

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Anamorphic chaetosphaeriaceous fungi from China

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Fungal Diversity 2022年第5期116卷 1-546页

作者： Wenping Wu Yongzhao Diao R&D Center Novozymes ChinaNo.14 Xin Xi LuShangdi ZoneHaidian DistrictBeijing 100085People’s Republic of China

Chaetosphaeriaceae is one of the largest families in Sordariomycetes with its members commonly found on decaying leaf,fruit,branch,bark and wood in both terrestrial and submerged environment in nature.This paper reports our research result of diversity,taxonomy and phylogeny of anamorphic Chaetosphaeriaceae in China,which is based on a systematic study with an integrated approach of morphological observation and phylogenetic analysis for a large collection(>1300 herbarium specimens and 1100 living strains).The family Chaetosphaeriaceae is expanded to accommodate 89 accepted genera,including 22 new genera and 10 newly assigned genera.Most of these genera(except for Chaetosphaeria and several other relatively large genera)are delimitated as monophyletic genera with well-defined diagnostic characters in morphology.The phylogenetic connection of non-phialidic Sporidesmium-like fungi is further confirmed and expanded to 10 different genera.The polyphyletic Codinaea/Dictyochaeta/Tainosphaeria complex is further resolved with a taxonomic framework of 28 monophyletic genera by redelimitation of Codinaea and Dictyochaeta with narrower concept,acceptance of the 16 established genera,and finally introduction of 10 new genera.Chloridium is phylogenetically redefined as monophyletic genus with narrower concept as typified by the type species,but a systematic review in both generic and species level is still needed.For biodiversity of chaetosphaeriaceous fungi,a total of 369 species in 76 genera,including 119 new species,47 new combinations,and one new name,are documented.The identification keys are provided for most genera,especially the large genera such as Codinaea s.str.,Codinaeella,Stilbochaeta,Cryptophiale,Thozetella,Dinemasporium and Pseudolachnella.In addition,ten known species were excluded from the family and reclassified.Systematic revision of several relatively large polyphyletic genera should be conducted in future studies,including Bahusutrabeeja,Ellisembia,Stanjehughesia,Cacumisporium,Chaetosphaeria,Chloridium,C

关键词： Chaetosphaeriaceae anamorphs Diversity·Taxonomy Phylogeny China

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