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首页> 外文期刊>Mycologia >New species of Cortinarius sect. Austroamericani, sect. nov., from South American Nothofagaceae forests
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New species of Cortinarius sect. Austroamericani, sect. nov., from South American Nothofagaceae forests

机译：新的Cortinarius Sect品种。 Austroamericani，Sect。 11月。，来自南美洲Nothofagaceae森林

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摘要

In this study, we document and describe the new Cortinarius section Austroamericani. Our results reveal high species diversity within this clade, with a total of 12 recognized species. Of these, only C. rufus was previously documented. Seven species are described as new based on basidiomata collections. The four remaining species are only known from environmental sequences. All examined species form ectomycorrhizal associations with species of Nothofagaceae and are currently only known from Argentinean and Chilean Patagonia. The phylogenetic analysis based on the nuc rDNA internal transcriber spacer (ITS1-5.8S-ITS2 = ITS) and partial 28S gene (28S) sequences shows that this section is related to other taxa from the Southern Hemisphere. Species in this group do not belong to subg. Telamonia, where C. rufus was initially placed. Cortinarius rufus and the newly described C. subrufus form a basal clade within sect. Austroamericani that has a weakly supported relationship with the core clade. Because the two species are morphologically similar to species from the core clade and share their distribution and Nothofagaceae associations, we include them here as part of sect. Austroamericani sensu lato (s.l.) until more material is available to refine the delimitation.
机译：在这项研究中，我们记录并描述了AustraAmericani的新Cortinarius部分。我们的结果揭示了这一思工内的高物种多样性，共有12种公认物种。其中，只有C.Rufus预先记录。七种物种被描述为基于基于Basidiomata收集的新型。四种剩余物种仅从环境序列中已知。所有检查的物种与Nothofagaceae的种类形成了喉癌，目前仅从阿根廷和智利巴塔哥尼知道。基于NUC RDNA内部转录物间隔物的系统发育分析（ITS1-5.8S-ITS2 = ITS）和部分28s基因（28s）序列表明，该部分与来自南半球的其他分类群有关。该组中的物种不属于Subg。 Teramonia，其中C. Rufus最初被放置。 cortinarius rufus和新描述的c. subrufus在教派中形成一个基底思工。 AustroAmericani与核心人士有弱支持的关系。因为这两个物种与来自核心人士的物种相似并分享他们的分发和Nothofageae协会，我们将它们包括在这里作为教派的一部分。 AustraAmericani Sensu Lato（S.L.）直到更多材料可用于改进界定。

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