Uncovering the hidden taxonomic diversity of fungi in Oman  

作　　者：Sajeewa S.N.Maharachchikumbura Dhanushka N.Wanasinghe Ratchadawan Cheewangkoon Abdullah M.Al-Sadi 

机构地区：[1]School of Life Science and Technology,University of Electronic Science and Technology of China,Chengdu 611731,People’s Republic of China [2]CAS Key Laboratory for Plant Diversity and Biogeography of East Asia,Kunming Institute of Botany,Chinese Academy of Science,Kunming 650201,Yunnan,People’s Republic of China [3]Entomology and Plant Pathology Department,Faculty of Agriculture,Chiang Mai University,Chiang Mai,Thailand [4]Department of Crop Sciences,College of Agricultural and Marine Sciences,Sultan Qaboos University,Al-Khod 123,Oman

出　　处：《Fungal Diversity》2021年第1期229-268,共40页真菌多样性（英文）

基　　金：the CAS President’s International Fellowship Initiative(number 2019PC0008);the 64th batch of China Postdoctoral Science Foundation(grant no.2018M643549);Postdoctoral Fund from Human Resources and Social Security Bureau of Yunnan Province and the National Science Foundation of China and the Chinese Academy of Sciences(Grant No.:41761144055).

摘　　要：Hot desert regions are undoubtedly challenging to fungal survival on the Arabian Peninsula.Fungi are,however,recognized as the most stress-resistant organisms among all eukaryotes,which could be a result of the rapid evolution of distinct species.Our current understanding of these microorganisms is derived from studies examining only a fraction of the overall fungal diversity.Therefore,further studies are needed to understand the diversity of fungi in desert regions.This paper highlights the taxonomy of several unusual fungal genera collected in a range of aquatic and terrestrial environments in Oman.These taxa were identified based on phylogenetic analyses of nuclear ribosomal DNA(rDNA)(LSU,SSU and ITS)and protein-coding genes(TEF,RPB2 and TUB),plus morphological comparisons.Phylogenetic analyses,including the presently recognized genera in Patellariales resulted in splitting the order into four clades in Dothideomycetes.The new family Holmiellaceae and new order Holmiellales are introduced to include Holmiella.Species of Homortomycetaceae form a well-supported and distinct clade and raise it to Homortomycetales ordo novus.Omania(Halojulellaceae),Desertiserpentica(Lophiostomata-ceae)and Montanitestudina(Testudinaceae)are described as novel genera in Dothideomycetes.A synnematous hyphomycete with basidiomycetous affinity(Corticiales)was also identified and described as Basidiodesertica.Additionally,an asexual morph was observed for Holmiella junipericola;Patellaria quercus is synonymized under P.atrata,and seven new species are described.

关 键 词：14 new taxa ASCOMYCOTA BASIDIOMYCOTA DESERT DOTHIDEOMYCETES Patellariales SAPROBES 

分 类 号：Q94[生物学—植物学]