Two novel Tuber species (Tuberaceae, Pezizales) from southwestern China based on morphological and molecular evidence

文献类型： 外文期刊

第一作者： Yuan, Tian-Jun

作者： Yuan, Tian-Jun;Luo, Hong-Mei;Su, Kai-Mei;Li, Shu-Hong;Li, E-Xian;Yuan, Tian-Jun

作者机构：

关键词： Ascomycetes; Latisporum group; new taxa; phylogenetic analysis; taxonomy

期刊名称：MYCOKEYS （ 影响因子：3.6； 五年影响因子：3.3 ）

ISSN： 1314-4057

年卷期： 2025 年 119 期

页码：

收录情况： SCI

摘要： Based on morphological and molecular phylogenetic analyses, two new species, Tuber marroninum and Tuber conditum, belonging to the Latisporum group, were described from Yunnan province of southwest China. Morphologically, Tuber marroninum is distinguished from other Latisporum species by whitish and glabrous ascomata and a two-layered peridium, measuring 150-200 mu m in total thickness, with an outer layer ranging from 40-60 mu m. Tuber conditum is diagnosed by its thinner peridium (120-200 mu m) and larger ascospores (49-66.5 x 34.5-60 mu m in one-spored asci). According to the outcome of the ITS rDNA sequence analysis, the species of T. marroninum and T. conditum each form a distinct and well-supported group within the Latisporum group, respectively.

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