文献类型：期刊文献

英文题名：Phylogeny and morphology of Helicotubeufia gen. nov., with three new species in Tubeufiaceae from aquatic habitats

作者：Liu, J. K. Lu, Y. Z. Cheewangkoon, R. To-Anun, C.

第一作者：Liu, J. K.

通信作者：Cheewangkoon, R[1];To-Anun, C[1]

机构：[1]Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai 50200, Thailand;[2]Guizhou Acad Agr Sci, Guizhou Key Lab Agr Biotechnol, Guiyang 550006, Guizhou, Peoples R China;[3]Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand;[4]Guizhou Inst Technol, Sch Pharmaceut Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai 50200, Thailand

通信机构：corresponding author), Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai 50200, Thailand.

年份：2018

卷号：9

期号：3

起止页码：495-509

外文期刊名：MYCOSPHERE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000440064000004)】；

基金：This work was supported by funding from the National Natural Science Foundation of China (NSFC 31600032) and Science and Technology Foundation of Guizhou Province (LH [2015]7061). Jian-Kui Liu thanks Chiang Mai University (Chiang Mai, Thailand) for a Post-Doctoral Fellowship and Mae Fah Luang University for the offer of a short term Visiting Professorship in 2017.

语种：英文

外文关键词：4 new taxa; asexual morph; Dothideomycetes; freshwater; Taxonomy

摘要：We are participating in an investigation of freshwater fungi along a north-south latitudinal gradient in the Asian region. Five new collections of asexual and sexual morphs of Tubeufiaceae from decaying wood in freshwater streams were obtained from China and Thailand. Morphologically, they line well with Tubeufiaceae in having superficial, solitary, scattered, subglobose to ellipsoidal-ovate, dark brown to black ascomata; cylindrical asci with hyaline, fusiform, multi-septate, slightly curved and guttulate ascospores and hyphomycetous helicosporous asexual morphs. Phylogenetic analyses based on combined LSU, ITS and TEF1 alpha sequences data indicate that they formed a monotypic clade among the genera of Tubeufiaceae, but as a phylogenetically distinct lineage. Therefore, we introduce a new genus Helicotubeufia gen. nov, with three species (H. guangxiensis, H. hydei and H. jonesii) to accommodate these new taxa. Detailed descriptions and illustrations are provided, as well as the comparisons with similar taxa.