Xylariomycetidae(Ascomycota)is a highly diversified group with variable stromatic characters.Our research focused on inconspicuous stromatic xylarialean taxa from China,Italy,Russia,Thailand and the United Kingdom.Det...Xylariomycetidae(Ascomycota)is a highly diversified group with variable stromatic characters.Our research focused on inconspicuous stromatic xylarialean taxa from China,Italy,Russia,Thailand and the United Kingdom.Detailed morpho-logical descriptions,illustrations and combined ITS-LSU-rpb2-tub2-tef1 phylogenies revealed 39 taxa from our collections belonging to Amphisphaeriales and Xylariales.A new family(Appendicosporaceae),five new genera(Magnostiolata,Mela-nostictus,Neoamphisphaeria,Nigropunctata and Paravamsapriya),27 new species(Acrocordiella photiniicola,Allocryp-tovalsa sichuanensis,Amphisphaeria parvispora,Anthostomella lamiacearum,Apiospora guiyangensis,A.sichuanensis,Biscogniauxia magna,Eutypa camelliae,Helicogermslita clypeata,Hypocopra zeae,Magnostiolata mucida,Melanostictus longiostiolatus,M.thailandicus,Nemania longipedicellata,N.delonicis,N.paraphysata,N.thailandensis,Neoamphispha-eria hyalinospora,Neoanthostomella bambusicola,Nigropunctata bambusicola,N.nigrocircularis,N.thailandica,Occul-titheca rosae,Paravamsapriya ostiolata,Peroneutypa leucaenae,Seiridium italicum and Vamsapriya mucosa)and seven new host/geographical records are introduced and reported.Divergence time estimates indicate that Delonicicolales diverged from Amphisphaeriales+Xylariales at 161(123-197)MYA.Amphisphaeriales and Xylariales diverged 154(117-190)MYA with a crown age of 127(92-165)MYA and 147(111-184)MYA,respectively.Appendicosporaceae(Amphisphaeriales)has a stem age of 89(65-117)MYA.Ancestral character state reconstruction indicates that astromatic,clypeate ascomata with aseptate,hyaline ascospores that lack germ slits may probably be ancestral Xylariomycetidae having plant-fungal endo-phytic associations.The Amphisphaeriales remained mostly astromatic with common septate,hyaline ascospores.Stromatic variations may have developed mostly during the Cretaceous period.Brown ascospores are common in Xylariales,but they first appeared in Amphisphaeriaceae,Melogrammataceae and Sporocadaceae during the early Cretaceous.The ascospore germ slits appeared only in Xylariales during the Cretaceous after the divergence of Lopadostomataceae.Hyaline,filiform and apiospores may have appeared as separate lineages,providing the basis for Xylariaceae,which may have diverged inde-pendently.The future classification of polyphyletic xylarialean taxa will not be based on stromatic variations,but the type of ring,the colour of the ascospores,and the presence or absence or the type of germ slit.展开更多
The classification of subclass Xylariomycetidae is revisited with additional collections and phylogeny based on novel rDNA sequence data.Phylogenetic inferences are provided and are based on analysis of 115 sequence d...The classification of subclass Xylariomycetidae is revisited with additional collections and phylogeny based on novel rDNA sequence data.Phylogenetic inferences are provided and are based on analysis of 115 sequence data,including new data for 27 strains.An updated outline to the subclass is presented based on the phylogenies and comprises two orders,18 families and 222 genera.An account of each order,family and genus in the subclass is given.We accept the orders Amphisphaeriales and Xylariales based on morphological and phylogenetic evidence.Amphisphaeriales comprises Amphisphaeriaceae,Bartaliniaceae fam.nov.,Clypeosphaeriaceae,Discosiaceae fam.nov.,Pestalotiopsidaceae fam.nov.and Phlogicylindriaceae fam.nov.Xylariales comprises Apiosporaceae,Cainiaceae,Coniocessiaceae,Diatrypaceae,Graphostromataceae(doubtful),Hyponectriaceae,Iodosphaeriaceae,Lopadostomaceae fam.nov.,Melogrammataceae,Pseudomassariaceae fam.nov.,Vialaeaceae and Xylariaceae.The new genera and species introduced are Arthrinium hyphopodii,A.subglobosa,Cainia anthoxanthis,Ciferriascosea gen.nov.,C.fluctamurum,C.rectamurum,Discosia neofraxinea,D.pseudopleurochaeta,Hyalotiella rubi,Seimatosporium cornii,S.ficeae,S.vitis and Truncatella spartii.展开更多
基金Joint Fund of the National Natural Science Foundation of China and the Karst Science Research Center of Guizhou province,U1812401,Jian-Kui Jack LiuThailand Research,RDG6130001,Kevin D.Hyde+1 种基金Thailand Science Research and Innovation(TSRI)grant,DBG6280009,Kevin D.Hydethe State Research Task of the Subtropical Scientific Centre of the Russian Academy of Sciences(Theme No.0492-2021-0007).
文摘Xylariomycetidae(Ascomycota)is a highly diversified group with variable stromatic characters.Our research focused on inconspicuous stromatic xylarialean taxa from China,Italy,Russia,Thailand and the United Kingdom.Detailed morpho-logical descriptions,illustrations and combined ITS-LSU-rpb2-tub2-tef1 phylogenies revealed 39 taxa from our collections belonging to Amphisphaeriales and Xylariales.A new family(Appendicosporaceae),five new genera(Magnostiolata,Mela-nostictus,Neoamphisphaeria,Nigropunctata and Paravamsapriya),27 new species(Acrocordiella photiniicola,Allocryp-tovalsa sichuanensis,Amphisphaeria parvispora,Anthostomella lamiacearum,Apiospora guiyangensis,A.sichuanensis,Biscogniauxia magna,Eutypa camelliae,Helicogermslita clypeata,Hypocopra zeae,Magnostiolata mucida,Melanostictus longiostiolatus,M.thailandicus,Nemania longipedicellata,N.delonicis,N.paraphysata,N.thailandensis,Neoamphispha-eria hyalinospora,Neoanthostomella bambusicola,Nigropunctata bambusicola,N.nigrocircularis,N.thailandica,Occul-titheca rosae,Paravamsapriya ostiolata,Peroneutypa leucaenae,Seiridium italicum and Vamsapriya mucosa)and seven new host/geographical records are introduced and reported.Divergence time estimates indicate that Delonicicolales diverged from Amphisphaeriales+Xylariales at 161(123-197)MYA.Amphisphaeriales and Xylariales diverged 154(117-190)MYA with a crown age of 127(92-165)MYA and 147(111-184)MYA,respectively.Appendicosporaceae(Amphisphaeriales)has a stem age of 89(65-117)MYA.Ancestral character state reconstruction indicates that astromatic,clypeate ascomata with aseptate,hyaline ascospores that lack germ slits may probably be ancestral Xylariomycetidae having plant-fungal endo-phytic associations.The Amphisphaeriales remained mostly astromatic with common septate,hyaline ascospores.Stromatic variations may have developed mostly during the Cretaceous period.Brown ascospores are common in Xylariales,but they first appeared in Amphisphaeriaceae,Melogrammataceae and Sporocadaceae during the early Cretaceous.The ascospore germ slits appeared only in Xylariales during the Cretaceous after the divergence of Lopadostomataceae.Hyaline,filiform and apiospores may have appeared as separate lineages,providing the basis for Xylariaceae,which may have diverged inde-pendently.The future classification of polyphyletic xylarialean taxa will not be based on stromatic variations,but the type of ring,the colour of the ascospores,and the presence or absence or the type of germ slit.
基金S.Maharachchikumbura thanks the Featured microbial resources and diversity investigation in Southwest Karst area(2014FY120100)for funding.The authors extend their sincere appreciations to the Deanship of Scientific Research at King Saud University for its funding this Prolific Research Group(PRG-1436-09).Kevin D.Hyde thanks the Chinese Academy of Sciences,project number 2013T2S0030,for the award of Visiting Professorship for Senior International Scientists at Kunming Institute of Botany.Y.P.Xiao and T.C.Wen are grateful to The National Natural Science Foundation of China(No.31460012&No.31200016).Shi-Ke Huang and J.C.Kang are grateful to the Agricultural Science and Technology Foundation of Guizhou Province Nos.NY[2013]3042),the International Collaboration Plan of Guizhou Province(No.G[2012]7006)and the Innovation Team Construction for Science And Technology of Guizhou Province(No.[2012]4007)from the Science and Technology Department of Guizhou Province,China.
文摘The classification of subclass Xylariomycetidae is revisited with additional collections and phylogeny based on novel rDNA sequence data.Phylogenetic inferences are provided and are based on analysis of 115 sequence data,including new data for 27 strains.An updated outline to the subclass is presented based on the phylogenies and comprises two orders,18 families and 222 genera.An account of each order,family and genus in the subclass is given.We accept the orders Amphisphaeriales and Xylariales based on morphological and phylogenetic evidence.Amphisphaeriales comprises Amphisphaeriaceae,Bartaliniaceae fam.nov.,Clypeosphaeriaceae,Discosiaceae fam.nov.,Pestalotiopsidaceae fam.nov.and Phlogicylindriaceae fam.nov.Xylariales comprises Apiosporaceae,Cainiaceae,Coniocessiaceae,Diatrypaceae,Graphostromataceae(doubtful),Hyponectriaceae,Iodosphaeriaceae,Lopadostomaceae fam.nov.,Melogrammataceae,Pseudomassariaceae fam.nov.,Vialaeaceae and Xylariaceae.The new genera and species introduced are Arthrinium hyphopodii,A.subglobosa,Cainia anthoxanthis,Ciferriascosea gen.nov.,C.fluctamurum,C.rectamurum,Discosia neofraxinea,D.pseudopleurochaeta,Hyalotiella rubi,Seimatosporium cornii,S.ficeae,S.vitis and Truncatella spartii.
