The species of Coleosporium (Pucciniales) on Solidago in North America

McTaggart, Alistair R.; Aime, M. Catherine

doi:10.1016/j.funbio.2018.04.007

Cited by 27 publications

(47 citation statements)

References 34 publications

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“…Wörheide et al 2004 ; Rosselló et al 2006 ; Stewart and Cavanaugh 2007 ). There is also growing evidence in certain fungal lineages (Smith et al 2007 ; Simon and Weiß 2008 ; Lindner and Banik 2011 ; Kiss 2012 ; Vydryakova et al 2012 ; Wilson et al 2012 ; Harrington et al 2014 ; Li et al 2013 , 2017 ; Kijpornyongpan and Aime 2016 ; McTaggart and Aime 2018 ; Colabella et al 2018 ; Heeger et al 2018 ; Hughes et al 2018 ; Stadler et al 2020 ). In most fungi, however, the rDNA cistron, including the ITS, appears to follow the principle of concerted evolution (Ganley and Kobayashi 2007 ).…”

Section: Caveats Of the Its As Universal Dna Barcoding Marker In Fungmentioning

confidence: 99%

“…Intragenomic ITS variation may largely stem from three processes: (1) stochastic point mutations resulting from DNA replication errors during cell division, (2) recombination through hybridization and introgression (e.g., McTaggart and Aime 2018 ), and (3) gene duplication leading to paralogs and pseudogenes (Dufayard et al 2005 ). Paralogs and pseudogenes have been demonstrated for ITS, particularly in plants (Álvarez and Wendel 2003 ; Zheng et al 2008 ; Xu et al 2017 ), but convincing evidence in fungi is rare (Li et al 2017 ).…”

Section: Caveats Of the Its As Universal Dna Barcoding Marker In Fungmentioning

confidence: 99%

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Unambiguous identification of fungi: where do we stand and how accurate and precise is fungal DNA barcoding?

et al. 2020

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True fungi (Fungi) and fungus-like organisms (e.g. Mycetozoa, Oomycota) constitute the second largest group of organisms based on global richness estimates, with around 3 million predicted species. Compared to plants and animals, fungi have simple body plans with often morphologically and ecologically obscure structures. This poses challenges for accurate and precise identifications. Here we provide a conceptual framework for the identification of fungi, encouraging the approach of integrative (polyphasic) taxonomy for species delimitation, i.e. the combination of genealogy (phylogeny), phenotype (including autecology), and reproductive biology (when feasible). This allows objective evaluation of diagnostic characters, either phenotypic or molecular or both. Verification of identifications is crucial but often neglected. Because of clade-specific evolutionary histories, there is currently no single tool for the identification of fungi, although DNA barcoding using the internal transcribed spacer (ITS) remains a first diagnosis, particularly in metabarcoding studies. Secondary DNA barcodes are increasingly implemented for groups where ITS does not provide sufficient precision. Issues of pairwise sequence similarity-based identifications and OTU clustering are discussed, and multiple sequence alignment-based phylogenetic approaches with subsequent verification are recommended as more accurate alternatives. In metabarcoding approaches, the trade-off between speed and accuracy and precision of molecular identifications must be carefully considered. Intragenomic variation of the ITS and other barcoding markers should be properly documented, as phylotype diversity is not necessarily a proxy of species richness. Important strategies to improve molecular identification of fungi are: (1) broadly document intraspecific and intragenomic variation of barcoding markers; (2) substantially expand sequence repositories, focusing on undersampled clades and missing taxa; (3) improve curation of sequence labels in primary repositories and substantially increase the number of sequences based on verified material; (4) link sequence data to digital information of voucher specimens including imagery. In parallel, technological improvements to genome sequencing offer promising alternatives to DNA barcoding in the future. Despite the prevalence of DNA-based fungal taxonomy, phenotype-based approaches remain an important strategy to catalog the global diversity of fungi and establish initial species hypotheses.

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Section: Caveats Of the Its As Universal Dna Barcoding Marker In Fungmentioning

confidence: 99%

Section: Caveats Of the Its As Universal Dna Barcoding Marker In Fungmentioning

confidence: 99%

Unambiguous identification of fungi: where do we stand and how accurate and precise is fungal DNA barcoding?

et al. 2020

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“…Coleosporium asterum, pine‐aster rust, alternates between hosts from Pinus and Asteraceae . The taxonomy and nomenclature of this species have recently been revised (Beenken et al ., 2017; McTaggart & Aime, 2018). Coleosporium solidaginis has formerly been considered a synonym, but recent studies show that they are not conspecific (Beenken et al ., 2017; McTaggart & Aime, 2018).…”

Section: Resultsmentioning

confidence: 99%

“…Coleosporium solidaginis is found on Pinus spp. and Solidago spp., assumed to be native to North America, but has spread to Asia and Europe (Beenken et al ., 2017; McTaggart & Aime, 2018). Coleosporium asterum is instead found on Pinus spp.…”

Section: Resultsmentioning

confidence: 99%

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Screening potential pests of Nordic coniferous forests associated with trade in ornamental plants

et al. 2020

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Plant pests moved along with the trade in ornamental plants could pose a threat to forests. In this study plant pests potentially associated with this pathway were screened to identify pests that could pose a high risk to the coniferous forests of Finland, Sweden and Norway. Specifically, the aim was to find pests that potentially could fulfil the criteria to become regulated as quarantine pests. EPPO’s commodity study approach, which includes several screening steps, was used to identify the pests that are most likely to become significant pests of Picea abies or Pinus sylvestris. From an initial list of 1062 pests, 65 pests were identified and ranked using the FinnPRIO model, resulting in a top list of 14 pests, namely Chionaspis pinifoliae, Coleosporium asterum s.l., Cytospora kunzei, Dactylonectria macrodidyma, Gnathotrichus retusus, Heterobasidion irregulare, Lambdina fiscellaria, Orgyia leucostigma, Orthotomicus erosus, Pseudocoremia suavis, Tetropium gracilicorne, Toumeyella parvicornis, Truncatella hartigii and Xylosandrus germanus. The rankings of the pests, together with the collected information, can be used to prioritize pests and pathways for further assessment.

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Two new species of Pucciniastrum producing dimorphic sori and spores from northeast of China

et al. 2019

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The species of Coleosporium (Pucciniales) on Solidago in North America

Cited by 27 publications

References 34 publications

Unambiguous identification of fungi: where do we stand and how accurate and precise is fungal DNA barcoding?

Unambiguous identification of fungi: where do we stand and how accurate and precise is fungal DNA barcoding?

Screening potential pests of Nordic coniferous forests associated with trade in ornamental plants

Two new species of Pucciniastrum producing dimorphic sori and spores from northeast of China

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