Molecular phylogeny and morphological characterization of asexual fungi (Tubeufiaceae) from freshwater habitats in Yunnan, China
文献类型: 外文期刊
作者: Luo, Zong-Long 1 ; Bhat, D. Jayarama 3 ; Jeewon, Rajesh 4 ; Boonmee, Saranyaphat 2 ; Bao, Dan-Feng 1 ; Zhao, Yong-C 1 ;
作者机构: 1.Dali Univ, Coll Agr & Biol Sci, Dali 671003, Yunnan, Peoples R China
2.Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand
3.Goa Univ, Dept Bot, Taleigao Plateau 403206, Goa, India
4.Univ Mauritius, Fac Sci, Dept Hlth Sci, Reduit 80837, Mauritius
5.Yunnan Acad Agr Sci, Inst Biotechnol & Germplasm Resources, Kunming 650223, Yunnan, Peoples R China
关键词: Asexual morph;Freshwater fungi;Phylogeny;Taxonomy;Tubeufiaceae
期刊名称:CRYPTOGAMIE MYCOLOGIE ( 影响因子:2.231; 五年影响因子:2.063 )
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收录情况: SCI
摘要: The diversity of lignicolous freshwater fungi along a north-south latitudinal gradient are currently being studied in Asia. In this paper, we report on 18 collections of asexual morphs of Tubeufiaceae from submerged wood in rivers, streams and a lake in Yunnan Province, China. Taxa are characterized based on morphological characters and analyses of ITS, LSU and TEFl alpha sequence data. The new genera, Muripulchra with a single species, M aquatica and Neohelicomyces with three new taxa (N. aquaticus, N. grandisporus, N. submersus) are introduced. Muripulchra is characterized by micronematous conidiophores and obpyriform, septate to muriform conidia. Neohelicomyces is characterized macronematous conidiophores and multi-septate, helicoid conidia. Tubeufia aquatica is introduced as a new species and its phylogenetic relationships with other taxa is discussed. The phylogenetic analyses of a concatenated ITS, LSU and TEFl alpha dataset place all collections in the family Tubeufiaceae (Tubeufiales) and provide evidence to support the establishment of our new taxa. The asexual morph of Tubeufia cylindrothecia, the type species of Helicomyces (H. roseus) are described herein, phylogenetic relationships assessed and reference specimens are given for these two species. Descriptions and illustrations for the new genera and species are provided with notes on their taxonomy and phylogeny.
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