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首页> 外文期刊>Mycologia >Nodulose-spored Inocybe from the Rocky Mountain alpine zone molecularly linked to European and type specimens
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Nodulose-spored Inocybe from the Rocky Mountain alpine zone molecularly linked to European and type specimens

机译：来自岩石山高山区的结节孢子皂孢子群与欧洲和型标本相连

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Inocybe (Inocybaceae) is one of the most diverse ectomycorrhizal genera in arctic and alpine habitats where the primary hosts are Salix, Betula, and Dryas. Subgenus Inocybe is common in these habitats and typically characterized by the presence of thick-walled pleurocystidia. Here, we focus on species that have angular or nodulose spores. Historically, over 30 taxa from this group have been reported from arctic and alpine habitats. Many names have been synonymized, whereas molecular analysis has revealed new species. Nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 (ITS) sequence data of 26 type specimens in this group now allow for further taxonomic clarification and comparison across continents of disjunct populations. Here, we compare ITS sequence data and the D1-D2 portion of nuc 28S rDNA (28S) from Rocky Mountain specimens with those of types and European reference material. We report 10 species from the Rocky Mountain alpine zone, all of which are conspecific with known European boreal, montane, or alpine species, and four are described as new; all have intercontinental distributions. Nodulose-spored Inocybe taxa that occur in the Rocky Mountain alpine zone include I. alpinomarginata, sp. nov., I. arctica, I. giacomi, I. leonina, I. murina, sp. nov., I. occulta, I. paragiacomi, sp. nov., I. phaeocystidiosa, I. purpureobadia, and I. subgiacomi, sp. nov. Remarkably, these species occur at elevations up to 4000 m and at latitudes as low as 36 degrees N, hundreds of miles from the Arctic, the European alpine, and original type localities. Distributions are explained in part by host distributions and historical glaciation patterns. A key and full descriptions for Rocky mountain species are provided to promote species recognition.
机译：Inocybe（Inocybaceae）是北极和高山栖息地中最多样化的外胚层属之一，其中主要宿主是Salix，Betula和Dryas。子根属Inocybe在这些栖息地中常见，并且通常以厚壁的胸膜细胞存在为特征。在这里，我们专注于具有角度或结核孢子的物种。从历史上看，来自北极和高山栖息地的来自这一群体的30多个分类群。许多名称已同义，而分子分析揭示了新物种。 NUC RDNA内转录的间隔液IT1-5.8S-ITS2（ITS）该组中的26型样本的序列数据现在允许进一步的分类，并在分离群体的大陆上进行比较。在这里，我们将其序列数据和NUC 28S RDNA（28s）的D1-D2部分与岩石山标本与类型和欧洲参考材料的序列数据和D1-D2部分进行比较。我们从岩石山高山区报告10种，所有这些都与已知的欧洲博尔良，山料物或高山物种都是尖锐的，四种被描述为新的;所有人都有洲际分布。在岩石山高山地区发生的结肠孢子孢子虫类别包括I. Alpinomarginata，SP。 11月，I. Arctica，I. Giacomi，I. Leonina，I. Murina，SP。 11月。，I. Occulta，I. ParagiaComi，SP。 11月，I. phaeocystioiosa，I. Purpureobadia，以及I. SubiaComi，SP。 11月。值得注意的是，这些物种在高达4000米的高度上发生，距离北极，欧洲高山和原版地区数百英里的纬度低至4000米。分布部分由主机分布和历史冰川模式分别解释。提供了岩石山地物种的关键和完整描述，以促进物种识别。

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