Mycology Research Group, Faculty of Biological Sciences, Goethe University Frankfurt am Main, Frankfurtam Main, Germany.
Plant Science and Biodiversity Center, Slovak Academy of Sciences, Bratislava, Slovakia.
PLoS One. 2021 Oct 13;16(10):e0257616. doi: 10.1371/journal.pone.0257616. eCollection 2021.
Species of the genus Russula are key components of ectomycorrhizal ecosystems worldwide. Nevertheless, their diversity in the tropics is still poorly known. This study aims to contribute to the knowledge of the diversity of Russula species classified in subsection Roseinae based on specimens recently collected in tropical montane rainforests in western Panama. A five gene multilocus phylogeny based on the nuclear markers ITS nrDNA, MCM7, RPB1, RPB2 and TEF-1α was constructed to identify the systematic position of 22 collections from Panama. Four new species, Russula cornicolor, Russula cynorhodon, Russula oreomunneae and Russula zephyrovelutipes are formally described and illustrated. None of the four species are sister species and they are more closely related to North American or Asian species. Two of the newly described species were associated with the ectomycorrhizal tree species Oreomunnea mexicana, while the other two species were associated with Quercus species. All four species are so far only known from mountains in western Panama.
红菇属的物种是全球外生菌根生态系统的重要组成部分。然而，它们在热带地区的多样性仍然知之甚少。本研究旨在根据最近在巴拿马西部山地雨林中采集的标本，为基于 Roseinae 亚组分类的红菇物种多样性提供知识。基于核标记 ITS nrDNA、MCM7、RPB1、RPB2 和 TEF-1α 的五基因多位点系统发育分析，确定了来自巴拿马的 22 个采集品的系统位置。正式描述并图示了四种新物种，即珊瑚红菇、赤黄红菇、奥雷穆恩纳红菇和泽菲罗绒盖红菇。这四个物种都不是姐妹种，它们与北美的或亚洲的物种关系更为密切。新描述的两个物种与外生菌根树种 Oreomunnea mexicana 有关，而另外两个物种与栎属物种有关。迄今为止，这四个物种仅在巴拿马西部的山区被发现。
