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Morphological and molecular analyses reveal two new species of Termitomyces (Agaricales, Lyophyllaceae) and morphological variability of T. intermedius

文献类型： 外文期刊

作者： Tang, Song-Ming 1 ; Vadthanarat, Santhiti 2 ; He, Jun 1 ; Raghoonundon, Bhavesh 2 ; Yu, Feng-Ming 2 ; Karunarathna, Samantha C. 3 ; Li, Shu-Hong 1 ; Raspe, Olivier 2 ;

作者机构： 1.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming 650205, Peoples R China

2.Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand

3.Dali Univ, Coll Agr & Biol Sci, Dali 671003, Yunnan, Peoples R China

4.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Peoples R China

5.Qujing Normal Univ, Qujing 655011, Yunnan, Peoples R China

关键词： 2 new species; morphology; multi-gene phylogeny; taxonomy; tropical Asia; Yunnan

期刊名称：MYCOKEYS （ 影响因子：3.3； 五年影响因子：3.1 ）

ISSN： 1314-4057

年卷期： 2023 年 95 期

页码：

收录情况： SCI

摘要： Two new species, Termitomyces tigrinus and T. yunnanensis are described based on specimens collected from southwestern China. Termitomyces yunnanensis is morphologically characterized by a conspicuously venose pileus surface that is grey, olive grey, light grey to greenish grey at center, light grey towards margin, and a cylindrical white stipe. Termitomyces tigrinus is morphologically characterized by a densely tomentose to tomentose-squamulose pileus showing alternating greyish white and dark grey zones, and a stipe that is bulbous at the base. The two new species are supported by phylogenetic analyses of combined nuclear rDNA internal transcribed spacer ITS1-5.8S-ITS2 rDNA (ITS), the mitochondrial rDNA small subunit (mrSSU) and the nuclear rDNA large subunit (nrLSU). The morphological variability of T. intermedius, including five specimens newly collected from Yunnan Province, China, is also discussed. The collections showed variability in colour of the stipe surface and in the shape of cheilocystidia when compared to the original description. Full descriptions of the two new species and of T. intermedius, as well as a taxonomic key to the 14 Termitomyces species reported from China are provided.

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