文献类型：期刊文献

英文题名：Polyphyletic genera in Xylariaceae (Xylariales): Neoxylaria gen. nov. and Stilbohypoxylon

作者：Konta, S. Hyde, K. D. Phookamsak, R. Xu, J. C. Maharachchikumbura, S. S. N. Daranagama, D. A. McKenzie, E. H. C. Boonmee, S. Tibpromma, S. Eungwanichayapant, P. D. Samarakoon, M. C. Lu, Y. Z.

第一作者：Konta, S.

通信作者：Lu, YZ[1]

机构：[1]Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550003, Peoples R China;[2]Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand;[3]Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China;[4]Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand;[5]Zhongkai Univ Agr & Engn, Innovat Inst Plant Hlth, Guangzhou 510225, Peoples R China;[6]World Agroforestry Ctr ICRAF, East & Cent Asia Reg Off, Kunming 650201, Yunnan, Peoples R China;[7]Univ Elect Sci & Technol China, Sch Life Sci & Technol, Chengdu 611731, Peoples R China;[8]Univ Kelaniya, Fac Sci, Dept Plant & Mol Biol, Kelaniya, Sri Lanka;[9]Manaaki Whenua Landcare Res, Private Bag 92170, Auckland, New Zealand;[10]Chinese Acad Sci, Kunming Inst Bot, Honghe Ctr Mt Futures, Kunming 654400, Yunnan, Peoples R China

第一机构：贵州理工学院食品药品制造工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550003, Peoples R China.|贵州理工学院食品药品制造工程学院;贵州理工学院;

年份：2020

卷号：11

期号：1

起止页码：2629-2651

外文期刊名：MYCOSPHERE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000585151300001)】；

基金：We are grateful to the National Research Council of Thailand (project no. 61215320023), the Mushroom Research Foundation and the Thailand Research Fund entitled "The future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants, Rhododendron species and Dracaena species" (Grant no: DBG6080013). Rungtiwa Phookamsak thanks CAS President's International Fellowship Initiative (PIFI) for young staff (Grant no. Y9215811Q1), the National Science Foundation of China (NSFC) project code 31850410489 (Grant no. Y81I982211) and Chiang Mai University for their support of this research work. Jianchu Xu thanks the Strategic Priority Research Program of Chinese Academy of Sciences and Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant no. QYZDY-SSW-SMC014) for supporting this research. 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. Sirinapa Konta express thanks to Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences for offering laboratory equipment to us for doing research on taxonomy and grateful to Yu-Ming Ju, Marc Stadler, Mingkwan Doilom, Samantha C. Karunarathna, Yuanpin Xiao, Wenjing Li, Ishani S. Goonasekara, Monika C. Dayarathne, Ausana Mapook, Chanokned Senwanna, Zeng Ming, Sirilak Radbouchoom, Anuruddha Karunarathna, Junfu Li, Paul Kirk, and Shaun Pennycook for their valuable suggestion and help.

语种：英文

外文关键词：3 new taxa; palmicolous fungi; phylogeny; Sordariomycetes; taxonomy; Thai fungi

摘要：Several genera in Xylariaceae are polyphyletic in phylogenetic trees and represent more than one distinct genus. However, it is challenging to resolve these genera that are often phylogenetically distantly related, because many taxa have never been recollected and sequenced. Those that have been named and sequenced often lack documented characters or herbarium material. In this paper, we use descriptive morphology of fresh collections, and molecular data to resolve some taxonomic problems in Xylariaceae. During the of microfungi on palms in Thailand, we collected several novel xylariaceous taxa. Herein, we introduce a new genus Neoxylaria which is distantly related to Xylaria sensu stricto and a new species Stilbohypoxylon elaeidis. Neoxylaria is characterized by relatively small stromata with conspicuously exposed perithecial contours under a narrowly striped outer layer. Neoxylaria accommodates a species morphologically similar to Xylaria juruensis, which was also collected from palm material in Brazil and X queenslandica collected from Archontophoenix alexandrae in Australia. As no molecular data exists for these old collections, we have linked them with morphology to our fresh collection and use both molecular data and morphology to introduce the new genus. Neoxylaria juruensis (Henn.) Konta & K.D. Hyde, comb. nov. and N. queenslandica (Joanne E. Taylor, K.D. Hyde & E.B.G. Jones) Konta & K.D. Hyde, comb. nov. are therefore established. Multigene phylogenetic analysis shows that our new species (S. elaeidis) clusters with Stilbohypoxylon sensu stricto (Stilbohypoxylon Glade II) and clarifies the nature of the genus. The new species differs from other species in having solitary, smooth stromata and forms synnemata-like structures on the host, but not on the stroma. The novel taxa introduced here are supported by multigene phylogeny and morphology. Comprehensive morphological descriptions, illustrations and a phylogenetic tree to show the placement of new taxa are provided.