菌物学报2026，Vol.45Issue(7)：1-13,13.DOI:10.13346/j.mycosystema.260110
散囊菌目新科、新属和新种——基于全基因组测序技术的9基因系统发育分析
New families,genus and species in Eurotiales inferred from nine-gene phylogeny with the aid of whole genome sequencing
摘要
Abstract
Species of Eurotiales are of great industrial,agricultural,ecological and medicinal importance.A strain of this order XCW_SN069 was isolated from Guangdong Province of China.In order to determine its phylogenetic position,the whole genome of the strain was sequenced using high-throughput sequencing platform.Two genomes of Elaphomycetaceae and two others of Onygenales were retrieved from GenBank for phylogenetic comparison.Nine gene partitions were extracted from the genomes or gathered from the public databases,which include internal transcribed spacer(ITS),large subunit(28S)and small subunit(18S)of the nuclear ribosomal DNA,RNA polymerase Ⅱ second largest subunit(RPB2),RNA polymerase Ⅱ largest subunit(RPB1),theta subunit of the TCP-1 chaperonin complex(Cct8),a putative ribosome biogenesis protein(Tsr1),β-tubulin(BenA)and calmodulin(CaM).Separate and concatenated datasets were compiled containing all the 27 accepted genera of the five families for reconstruction of the phylogenies of Eurotiales.The strain XCW_SN069 represents a new species(Austromyces sinicus)of a new genus(Austromyces)belonging to a new family(Austromycetaceae)which is sister to the ectomycorrhizal family Elaphomycetaceae in the nine-gene phylogeny.The current concept of Thermoascaceae was not supported by the analysis and needs to be emended,thus another new family,Paecilomycetaceae was proposed to accommodate the genus Paecilomyces.The classification of Eurotiales was therefore updated to include seven families:Aspergillaceae,Austromycetaceae,Elaphomycetaceae,Paecilomycetaceae,Penicillaginaceae,Thermoascaceae and Trichocomaceae.Detailed description and illustration of the new species were given.Taxonomic comments for the new taxa at higher ranks were also provided.关键词
子囊菌门/分类系统/新分类单元/分类学Key words
Ascomycota/classification/new taxa/taxonomy引用本文复制引用
彭璐瑶,庄文颖,王新存..散囊菌目新科、新属和新种——基于全基因组测序技术的9基因系统发育分析[J].菌物学报,2026,45(7):1-13,13.基金项目
This work was supported by the National Natural Science Foundation of China(32270008). （32270008）
