'Cort short on a mountaintop' – Eight new species of sequestrate &lt;I&gt;Cortinarius&lt;/I&gt; from sub-alpine Australia and affinities to sections within the genus

Danks, Melissa; Lebel, Teresa; Vernes, Karl

doi:10.3767/003158510x512711

Cited by 28 publications

(10 citation statements)

References 27 publications

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“…In these environments, spores that are enclosed or stay beneath the soil surface would be better protected from desiccation and so survive or remain competitive. This hypothesis is supported by the high diversity of sequestrate fungi in the dry continent of Australia (Bougher and Lebel 2001;Danks et al 2010;Trappe et al 2010;Castellano et al 2011;Lebel and Syme 2012;Lebel et al 2015) as well as seasonally dry western North America States 2001, 2002;Trappe et al 2009). Alternatively, the stimulus may be related to an association with plant hosts because most sequestrate taxa are ectomycorrhizal (Tedersoo et al 2010), and distributions and diversity of sequestrate fungi are thought to be driven more generally by plant host availability and diversity (Jumpponen et al 2004;Bonito et al 2013).…”

Section: Introductionmentioning

confidence: 63%

Dating the emergence of truffle-like fungi in Australia, by using an augmented meta-analysis

Sheedy

Ryberg

Lebel

et al. 2016

Aust. Systematic Bot.

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Abstract. Australia supports a high diversity of sequestrate (truffle-like) macrofungi. This has long been thought to be related to the predominantly or seasonally dry climate. The present study posits that if aridity were a key factor in the evolution of sequestrate fruit-bodies, most sequestrate species would have emerged in Australia only after it began to aridify, which occurred post-separation with Antarctica (c. 32 million years ago). Focusing on the high phylogenetic diversity of sequestrate taxa in the Agaricomycetes in Australia, dates of sequestrate nodes were compiled directly from published phylogenies (four lineages) or created using sequences available on GenBank that were processed in BEAST using a secondary calibration method (nine lineages). Although the morphologically diverse Hysterangiales was found to be the first group to become sequestrate, c. 83 million years ago, overall sequestration in Australia occurred more recently. Models were created and compared and support was found for an increased rate of sequestration in Australia at some point between 34 and 13 million years ago (during the Oligocene and Miocene). Although the rate of sequestration is shown to have increased in Australia after separation from Antarctica, the timing also overlaps with the radiation of potential mycorrhizal plant associates, and the emergence of specialised mycophagous marsupials. Although aridification is evidently not the sole driver of sequestration, it is still likely to have had a major influence on the diversity of sequestrate fungi in Australia. Comparisons with other regions of high sequestrate diversity will be informative.

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Section: Introductionmentioning

confidence: 63%

Dating the emergence of truffle-like fungi in Australia, by using an augmented meta-analysis

Sheedy

Ryberg

Lebel

et al. 2016

Aust. Systematic Bot.

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“…It has been demonstrated that Rozites is polyphyletic, suggesting that a membranaceous veil has evolved in multiple independent events in Cortinarius (Peintner et al 2002). Some fungi with sequestrate (gastroid or partially closed) basidiocarps, have a polyphyletic origin within genus Cortinarius (Peintner et al 2001, Danks et al 2010.…”

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confidence: 99%

Phylogenetic relationships in Cortinarius with focus on North European species

Stensrud¹,

Reier-Røberg²,

Schumacher³

et al. 2014

Karstenia

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IntroductionCortinarius (Pers.) Gray is a genus of Agaricales (Basidiomycota) characterised by a fugacious veil enveloping the basidiocarp, and a cortina at first covering the lamellae, but later vanishing in expanding basidiocarps. The basidiocarp size, shape, and colour vary considerably among species. The lamellae are emarginate to adnate, variously coloured, soon becoming brownish from mature, brown-pigmented basidiospores. The basidiospores are usually verrucose, highly variable Cortinarius is an ectomycorrhizal Agaricales genus with high diversity of which rDNA sequences of 86 species together with four outgroup taxa were investigated phylogenetically by aid of Maximum Likelihood and Bayesian analyses. The Cortinarius data set represents 81 taxa from the Northern Hemisphere showing the main variation spectrum among the species. In addition, five species from the Southern Hemisphere are included. The phylogenetic tree of Cortinarius gives statistical support to twelve monophyletic groups in the upper level. They are discussed in context of morphology, chemistry (secondary compounds), and ecology. The phylogenetic tree lacks, however, satisfactory support for its backbone. Several species could not be included in any group, especially those forming the basal framework of the tree. Of special interest is a "superclade" comprising eight of our monophyletic clades and two singletons. Here we find the majority of species with soluble pigments of octaketide origin, all species with compounds of nonaketide origin, the majority of species with hygrophaneous pileus, few species with viscid pileus, and no species with bulbous stipe base. Moreover, all species except one have duplex pileus cuticle. The morphological traits are not indicative for any clade, although some are more frequent in some clades than others. During the evolution they have been gained and lost several times. The chemical characteristics are -to a certain degree -more indicative for the clades. The evolution and ecological role of these compounds are discussed. Concerning the North European species, there are ecological differences between the clades, especially between clades specializing to rich or calcareous forests and clades specializing to poor forests or arctic-alpine environments.

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“…The diversity of Cortinarius from the Northern Hemisphere and from New-Zealand and Australia have been extensively studied (e.g., [ 24 , 38 , 68 , 70 , 71 , 72 ]). However, aside from the pioneering work from Moser and Horak [ 5 , 26 ] there are relatively few studies that have focused on South American Cortinarius diversity [ 25 ].…”

Section: Discussionmentioning

confidence: 99%

Loose Ends in the Cortinarius Phylogeny: Five New Myxotelamonoid Species Indicate a High Diversity of These Ectomycorrhizal Fungi with South American Nothofagaceae

Salomón

Barroetaveña

Niskanen

et al. 2021

Life

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This paper is a contribution to the current knowledge of taxonomy, ecology and distribution of South American Cortinarius (Pers.) Gray. Cortinarius is among the most widely distributed and species-rich basidiomycete genera occurring with South American Nothofagaceae and species are found in many distinct habitats, including shrublands and forests. Due to their ectomycorrhizal role, Cortinarius species are critical for nutrient cycling in forests, especially at higher latitudes. Some species have also been reported as edible fungi with high nutritional quality. Our aim is to unravel the taxonomy of selected Cortinarius belonging to phlegmacioid and myxotelamonioid species based on morphological and molecular data. After widely sampling Cortinarius specimens in Patagonian Nothofagaceae forests and comparing them to reference collections (including holotypes), we propose five new species of Cortinarius in this work. Phylogenetic analyses of concatenated rDNA ITS-LSU and RPB1 sequences failed to place these new species into known Cortinarius sections or lineages. These findings highlight our knowledge gaps regarding the fungal diversity of South American Nothofagaceae forests. Due to the high diversity of endemic Patagonian taxa, it is clear that the South American Cortinarius diversity needs to be discovered and described in order to understand the evolutionary history of Cortinarius on a global scale.

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'Cort short on a mountaintop' – Eight new species of sequestrate <I>Cortinarius</I> from sub-alpine Australia and affinities to sections within the genus

Cited by 28 publications

References 27 publications

Dating the emergence of truffle-like fungi in Australia, by using an augmented meta-analysis

Dating the emergence of truffle-like fungi in Australia, by using an augmented meta-analysis

Phylogenetic relationships in Cortinarius with focus on North European species

Loose Ends in the Cortinarius Phylogeny: Five New Myxotelamonoid Species Indicate a High Diversity of These Ectomycorrhizal Fungi with South American Nothofagaceae

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