Latest Articles from MycoKeys Latest 3 Articles from MycoKeys https://mycokeys.pensoft.net/ Thu, 28 Mar 2024 22:58:43 +0200 Pensoft FeedCreator https://mycokeys.pensoft.net/i/logo.jpg Latest Articles from MycoKeys https://mycokeys.pensoft.net/ Three new Dioszegia species (Bulleribasidiaceae, Tremellales) discovered in the phylloplane in China https://mycokeys.pensoft.net/article/117174/ MycoKeys 101: 313-328

DOI: 10.3897/mycokeys.101.117174

Authors: Ya-Zhuo Qiao, Shan Liu, Qiu-Hong Niu, Feng-Li Hui

Abstract: The genus Dioszegia is comprised of anamorphic basidiomycetous yeasts and is classified in the family Bulleribasidiaceae of the order Tremellales. Currently, 24 species have been described and accepted as members of the genus, although its diversity and global distribution have not been thoroughly investigated. In this study, yeasts were isolated from plant leaves collected in the Guizhou and Henan Provinces of China and identified through a combination of morphological and molecular methods. Phylogenetic analyses of the combined ITS and LSU sequences coupled with morphological studies revealed three novel species, D. guizhouensis sp. nov., D. foliicola sp. nov., and D. aurantia sp. nov., proposed here. Additionally, our phylogenetic analyses suggest that the recently discovered species D. terrae is a synonym of D. maotaiensis. This study presents detailed descriptions and illustrations of three new Dioszegia species and highlights distinctions between them and their close relatives. The findings of this study contribute to our knowledge of the biodiversity of Dioszegia, offering a foundation for future research.

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Research Article Fri, 2 Feb 2024 15:07:48 +0200
Four new species in the Tremella fibulifera complex (Tremellales, Basidiomycota) https://mycokeys.pensoft.net/article/63241/ MycoKeys 82: 33-56

DOI: 10.3897/mycokeys.82.63241

Authors: Long-Fei Fan, Renato Lúcio Mendes Alvarenga, Tatiana Baptista Gibertoni, Fang Wu, Yu-Cheng Dai

Abstract: Samples of species close to Tremella fibulifera from China and Brazil are studied, and T. fibulifera is confirmed as a species complex including nine species. Five known species (T. cheejenii, T. fibulifera s.s., T. “neofibulifera”, T. lloydiae-candidae and T. olens) and four new species (T. australe, T. guangxiensis, T. latispora and T. subfibulifera) in the complex are recognized based on morphological characteristics, molecular evidence, and geographic distribution. Sequences of eight species of the complex were included in the phylogenetic analyses because T. olens lacks molecular data. The phylogenetic analyses were performed by a combined sequence dataset of the internal transcribed spacer (ITS) and the partial nuclear large subunit rDNA (nLSU), and a combined sequence dataset of the ITS, partial nLSU, the small subunit mitochondrial rRNA gene (mtSSU), the translation elongation factor 1-α (TEF1), the largest and second largest subunits of RNA polymerase II (RPB1 and RPB2). The eight species formed eight independent lineages with robust support in phylogenies based on both datasets. Illustrated description of the six species including Tremella fibulifera s.s., T. “neofibulifera” and four new species, and discussions with their related species, are provided. A table of the comparison of the important characteristics of nine species in the T. fibulifera complex and a key to the whitish species in Tremella s.s. are provided.

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Research Article Wed, 4 Aug 2021 15:09:13 +0300
Four new species of Tremella (Tremellales, Basidiomycota) based on morphology and DNA sequence data https://mycokeys.pensoft.net/article/29180/ MycoKeys 47: 75-95

DOI: 10.3897/mycokeys.47.29180

Authors: Ying Zhao, Xin-zhan Liu, Feng-yan Bai

Abstract: In the present study, a total of 33 Tremella specimens in China were collected and examined using molecular phylogenetic analysis based on a combined sequence dataset of the nuc rDNA internal transcribed spacer (ITS) region and nuc 28S rDNA D1/D2 domain in conjunction with the morphological characters. Four new species, namely Tremella basidiomaticola, T. cheejenii, T. erythrina, and T. salmonea, are newly described based on their distinct phylogenetic relationships and the comparison of morphological characters with known Tremella species. Our results indicate a high species diversity of Tremella waiting to be discovered.

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Research Article Wed, 27 Feb 2019 10:44:31 +0200