Predicting global numbers of teleomorphic ascomycetes  

作　　者：Indunil C.Senanayake Dhandevi Pem Achala R.Rathnayaka Subodini N.Wijesinghe Saowaluck Tibpromma Dhanushka N.Wanasinghe Rungtiwa Phookamsak Nuwan D.Kularathnage Deecksha Gomdola Dulanjalee Harishchandra Lakmali S.Dissanayake Mei-mei Xiang Anusha H.Ekanayaka Eric H.C.McKenzie Kevin D.Hyde Hao-xing Zhang Ning Xie 

机构地区：[1]Guangdong Provincial Key Laboratory for Plant Epigenetics,College of Life Science and Oceanography,Shenzhen University,Nanhai Avenue,Nanshan,Shenzhen 3688,Guangdong,China [2]Innovative Institute for Plant Health,Zhongkai University of Agriculture and Engineering,Haizhu District,Guangzhou 510225,China [3]Center of Excellence in Fungal Research,Mae Fah Luang University,Chiang Rai 57100,Thailand [4]School of Science,Mae Fah Luang University,Chiang Rai 57100,Thailand [5]Honghe Center for Mountain Futures,Kunming Institute of Botany,Chinese Academy of Sciences,Honghe County 654400,Yunnan,China [6]Centre for Mountain Futures(CMF),Kunming Institute of Botany,Kunming 650201,Yunnan,China [7]CIFOR-ICRAF China Program,World Agroforestry(ICRAF),Kunming 650201,Yunnan,China [8]Beijing Key Laboratory of Environment Friendly Management On Fruit Diseases and Pests in North China,Institute of Plant and Environment Protection,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China [9]Engineering Research Center of the Utilization for Characteristic Bio-Pharmaceutical Resources in Southwest,Ministry of Education,Guizhou University,Guiyang 550025,Guizhou,China [10]Manaaki Whenua-Landcare Research,Auckland Mail Centre,Private Bag 92170,Auckland 1142,New Zealand

出　　处：《Fungal Diversity》2022年第3期237-278,共42页真菌多样性（英文）

基　　金：National Key R&D Program of China(2021YFA0910800);National Natural Science Foundation of China(No.31601014);Basic and applied basic research fund of Guangdong Province(2121A1515012166);Stability Support Project for Universities in Shenzhen(20200812173625001);Project of DEGP(2019KTSCX150)for funding;Senanayake thanks to Paul Kirk,Samantha C.Karunarathna for data contribution.S.N.Wijesinghe would like to acknowledge Thailand Science Research and Innovation(TSRI)grant for Macrofungi diversity research from the Lancang-Mekong Watershed and Surrounding areas(Grant No.DBG6280009);Dhanushka Wanasinghe thanks the CAS President’s International Fellowship Initiative(PIFI)for funding his postdoctoral research(number 2021FYB0005);the Postdoctoral Fund from Human Resources and Social Security Bureau of Yunnan Province and the National Science Foundation of China.Saowaluck Tibpromma would like to thank the International Postdoctoral Exchange Fellowship Program(Number Y9180822S1);CAS President’s International Fellowship Initiative(PIFI)(Number 2020PC0009);China Postdoctoral Science Foundation and the Yunnan Human Resources,and Social Security Department Foundation for funding her postdoctoral research.Rungtiwa Phookamsak thanks to CAS President’s International Fellowship Initiative(PIFI)for young staff(Grant No.2019FYC0003)and“High-level Talent Support Plan”Young Top Talent Special Project of Yunnan Province.

摘　　要：Sexual reproduction is the basic way to form high genetic diversity and it is beneficial in evolution and speciation of fungi.The global diversity of teleomorphic species in Ascomycota has not been estimated.This paper estimates the species number for sexual ascomycetes based on five different estimation approaches,viz.by numbers of described fungi,by fungus:substrate ratio,by ecological distribution,by meta-DNA barcoding or culture-independent studies and by previous estimates of species in Ascomycota.The assumptions were made with the currently most accepted,“2.2–3.8 million”species estimate and results of previous studies concluding that 90%of the described ascomycetes reproduce sexually.The Catalogue of Life,Species Fungorum and published research were used for data procurement.The average value of teleomorphic species in Ascomycota from all methods is 1.86 million,ranging from 1.37 to 2.56 million.However,only around 83,000 teleomorphic species have been described in Ascomycota and deposited in data repositories.The ratio between described teleomorphic ascomycetes to predicted teleomorphic ascomycetes is 1:22.Therefore,where are the undiscovered teleomorphic ascomycetes?The undescribed species are no doubt to be found in biodiversity hot spots,poorly-studied areas and species complexes.Other poorly studied niches include extremophiles,lichenicolous fungi,human pathogens,marine fungi,and fungicolous fungi.Undescribed species are present in unexamined collections in specimen repositories or incompletely described earlier spe-cies.Nomenclatural issues,such as the use of separate names for teleomorph and anamorphs,synonyms,conspecific names,illegitimate and invalid names also affect the number of described species.Interspecies introgression results in new species,while species numbers are reduced by extinctions.

关 键 词：ASCOMYCOTA ESTIMATES Habitat diversity Molecular techniques Species concepts 

分 类 号：Q94[生物学—植物学]