Gerhardtia tomentosa and Ossicaulis borealis (Agaricales, Lyophyllaceae)-Two new species from northeast China

文献类型： 外文期刊

第一作者： Qi, Yue

作者： Qi, Yue;Xu, Fei;Yang, Zhao-Qian;Hou, Jian-Xuan;Yu, Xiao-Dan;Xu, Ai-Guo;Guo, Hong-Bo;Yang, Rui-Heng

作者机构：

关键词： Lyophyllaceae; Gerhardtia; Ossicaulis; phylogeny; morphology; taxonomy

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）

ISSN：

年卷期： 2023 年 14 卷

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收录情况： SCI

摘要： BackgroundGerhardtia and Ossicaulis are two genera within the family Lyophyllaceae, which show an apparently poor species diversity worldwide. During the field investigation on wild macrofungi, six interesting collections within Gerhardtia and Ossicaulis genera are discovered in the northeastern China. MethodsTo identify whether these collections of Gerhardtia and Ossicaulis are novel species, we performed phylogenetic analyzes using the following DNA regions: the internal transcribed spacer (ITS) region and the large subunit nuclear ribosomal RNA (nrLSU) region. Moreover, a traditional morphological method also be conducted based on both the macro-morphological and micro-morphological features. ResultsThe results indicated that these collections tested formed two independent lineages in each genus with a high support. In addition, they can easily be separated from all other taxa of the two genera in morphology. Based on the combination of morphological and molecular data, Gerhardtia tomentosa and Ossicaulis borealis, are confirmed as two new species to science. DiscussionsThis study provided a theoretical basis is for the two lyophylloid genera and indicated that the biodiversity resources of northeastern China might be underestimated.

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