Trametes is a globally distributed genus of white-rot polypores and well sampled in temperate and boreal areas. However, the diversity, taxonomy, and phylogenetic positions of Trametes spp. are poorly known in tropical Africa. This study aims at documenting the diversity of Trametes species in Benin (tropical Africa) and their phylogenetic positions with a focus on the T. elegans species complex. Therefore, we collected specimens of Trametes from different forest types across Benin. To infer phylogenetic relationships between Trametes species, we investigated sequences of five gene regions and added available sequences from GenBank. Using Maximum likelihood and Bayesian phylogeny inference methods, we found eight supported species clades. For the T. elegans species complex, we re-establish the name Trametes palisotii for species previously known as T. elegans in tropical Africa. Furthermore, we propose Trametes parvispora as a species new to science and provide the description of this species. Our molecular phylogeny of Trametes with a focus on tropical Benin contributes to taxonomic clarity of an important wood-decay fungal genus, which is the basis for biodiversity assessments of Trametes in the tropics.

中文翻译：

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贝宁热带地区Trametes（Polyporales，Basidiomycota）的多样性和新种Trametes parvispora的描述。

Trametes是白腐菌多孢菌的全球分布属，在温带和寒带地区都得到了很好的采样。但是，Trametes spp的多样性，分类学和系统发育位置。在热带非洲鲜为人知。这项研究旨在记录贝宁（热带非洲）的Trametes物种的多样性及其系统发育位置，重点是线虫T. elegans物种复合体。因此，我们从贝宁的不同森林类型中收集了Trametes的标本。为了推断Trametes物种之间的系统发育关系，我们研究了五个基因区域的序列，并添加了来自GenBank的可用序列。使用最大似然和贝叶斯系统发育推断方法，我们发现了八个支持的物种进化枝。对于线虫物种复合体，我们为热带非洲以前称为线虫的物种重新命名了Trametes palisotii。此外，我们建议将Trametes parvispora作为科学新物种，并提供对该物种的描述。我们的Trametes分子系统学研究重点是热带贝宁，有助于重要的木腐真菌属的分类学清晰，这是热带地区Trametes生物多样性评估的基础。