One stop shop II: taxonomic update with molecular phylogeny for important phytopathogenic genera: 26–50 (2019)

Jayawardena, Ruvishika S.; Hyde, Kevin D.; Jeewon, Rajesh; Ghobad-Nejhad, Masoomeh; Wanasinghe, Dhanushka N.; Liu, Ning-Guo; Phillips, Alan J. L.; Oliveira-Filho, José Ribamar C.; Silva, Gladstone Alves da; Gibertoni, Tatiana Baptista; Abeywikrama, P.; Carris, L. M.; Chethana, K. W. Thilini; Dissanayake, Asha J.; Hongsanan, Sinang; Jayasiri, Subashini C.; McTaggart, Alistair R.; Perera, Rekhani H.; Phutthacharoen, Kunthida; Savchenko, Kyryll; Shivas, R. G.; Thongklang, Naritsada; Dong, Wei; Wei, De-Ping; Wijayawardena, Nalin N.; Kang, Ji-Chuan

doi:10.1007/s13225-019-00418-5

Cited by 74 publications

(46 citation statements)

References 302 publications

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“…In order to accurately identify our strains, phylogenetic analysis included all ex-type and published strains of all Curvularia spp. described recently (Hyde et al 2017;Marin-Felix et al 2017;Dehdari et al 2018;Heidari et al 2018;Hernández-Restrepo et al 2018;Mehrabi-Koushki et al 2018;Tan et al 2018;Jayawardena et al 2019) which are listed in Table 1. The final alignment comprised 2032 characters (each gene fragment was separated with 2 "N") including gaps (ITS: 1−600, GAPDH: 603−1162 and tef1: 1165−2032).…”

Section: Phylogenetic Analysesmentioning

confidence: 99%

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Zhang¹,

Yang²,

Cheng³

et al. 2020

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Five Curvularia strains isolated from diseased leaves of lemongrass (Cymbopogon citratus) in Guangxi Province, China, were examined. NCBI-Blast searches of ITS sequences suggested a high degree of similarity (99–100%) to Curvularia akaii, C. akaiiensis, C. bothriochloae, C. heteropogonis and C. sichuanensis. To accurately identify these strains, we further analysed their morphology and phylogenetic relationships based on combinations of ITS, GAPDH, and tef1 gene sequences. Morphological observations indicated that the key character differing from similar species was conidial size, whereas phylogenetic analyses indicated that the five strains represent one species that is also distinct from C. akaii, C. akaiiensis and C. bothriochloae by conidial size and conidiophore length. Thus, the strains examined are found to represent a new species described herein as Curvularia nanningensis. The pathogenicity test on the host and detached leaves confirmed the new species to be pathogenic on Cymbopogon citratus leaves. Standardised requirements for reliable identification of Curvularia pathogens are also proposed.

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Section: Phylogenetic Analysesmentioning

confidence: 99%

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Zhang¹,

Yang²,

Cheng³

et al. 2020

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“…The overall data also showed that plants of the E. urophylla × E. grandis clone and E. globulus seed-derived plants had similar levels of susceptibility to most of the tested isolates (Fig. 12) Analysis of multi-gene phylogenetic concordance has emerged as standard practice for species identification in the Botryosphaeriaceae (Phillips et al 2013;Chen et al 2014aChen et al , 2014bSlippers et al 2017;Yang et al 2017;Li et al 2018;Jayawardena et al 2019aJayawardena et al , 2019bPhillips et al 2019). This approach was also essential in the present study to distinguish between closely related species, where we considered the phylogenetic signal for four loci, including ITS, tef1, tub2 and rpb2.…”

Section: Pathogenicity Testsmentioning

confidence: 85%

“…Analysis of multi-gene phylogenetic concordance has emerged as standard practice for species identification in the Botryosphaeriaceae (Phillips et al 2013 ; Chen et al 2014a , 2014b ; Slippers et al 2017 ; Yang et al 2017 ; Li et al 2018 ; Jayawardena et al 2019a , 2019b ; Phillips et al 2019 ). This approach was also essential in the present study to distinguish between closely related species, where we considered the phylogenetic signal for four loci, including ITS, tef1 , tub2 and rpb2 .…”

Section: Discussionmentioning

confidence: 99%

“…The taxonomic status of Botryosphaeriaceae has been substantially revised in recent years and now includes 23 genera and at least 200 species known from culture (Liu et al 2012 ; Phillips et al 2013 ; Dissanayake et al 2016 ; Slippers et al 2017 ; Yang et al 2017 ; Jayawardena et al 2019a , 2019b ). These species include many cryptic taxa and require DNA sequence-based identification, often considering sequence data from multiple loci.…”

Section: Introductionmentioning

confidence: 99%

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Variation in Botryosphaeriaceae from Eucalyptus plantations in YunNan Province in southwestern China across a climatic gradient

Slippers

Wingfield

et al. 2020

IMA Fungus

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The Botryosphaeriaceae accommodates many important pathogens of woody plants, including Eucalyptus. Recently, Botryosphaeriaceae were isolated from diseased plant parts from surveys of Eucalyptus plantations in the YunNan Province, China. The aims of this study were to identify these Botryosphaeriaceae isolates and to evaluate their pathogenicity to Eucalyptus. A total of 166 isolates of Botryosphaeriaceae were obtained from six regions in the YunNan Province, of which 76 were from Eucalyptus urophylla × E. grandis hybrids, 49 from E. globulus trees, and 41 isolates were from other unknown Eucalyptus species or hybrids. Isolates were identified by comparing DNA sequences of the internal transcribed spacer ribosomal RNA locus (ITS), partial translation elongation factor 1-alpha (tef1), β-tubulin 2 (tub2) and DNA-directed RNA polymerase II subunit (rpb2) genes, and combined with their morphological characteristics. Eleven species were identified, including Botryosphaeria fusispora, B. wangensis, Lasiodiplodia pseudotheobromae, Neofusicoccum kwambonambiense, N. parvum, and six novel species described as B. puerensis, N. dianense, N. magniconidium, N. ningerense, N. parviconidium and N. yunnanense. The dominant species across the regions were N. yunnanense, N. parvum and B. wangensis, representing 31.3, 25.3 and 19.9% of the total isolates, respectively. Species diversity and composition changed across the different climatic zones, despite their relatively close geographic proximity and the fact that some of the species have a global distribution. All the Botryosphaeriaceae species were pathogenic to one-year-old plants of an E. urophylla × E. grandis clone and E. globulus seed-derived plants, but showed significant inter- and intra-species variation in aggressiveness amongst isolates. The study provides a foundation for monitoring and management of Botryosphaeriaceae through selection and breeding of Eucalyptus in the YunNan Province of southwestern China.

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“… Discosia , for instance, is known to comprise the plant pathogen D. yakushimensis which causes leaf spots on plants such as Symplocos prunifolia ( Tanaka et al 2011 ). Identifying novel species in a genus may also potentially imply the discovery of emerging pathogens which can cause damage to crops of economic importance ( Jayawardena et al 2019a , 2019b ). Evolutionary relationships and ecological roles of fungi have been reported to be intricately linked to the emergence of new species ( Zhang et al 2008 ; Hyde et al 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Morpho-molecular characterization of Discosia ravennica sp. nov. and a new host record for Sporocadus rosigena

Bundhun

Jeewon

Senanayake

et al. 2021

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518

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Collections of fungal samples from two dead leaf specimens from Italy were subjected to morphological examination and phylogenetic analyses. Two coelomycetous taxa belonging to two different genera in Xylariomycetidae, Sordariomycetes, namely Discosia and Sporocadus, were identified. The Discosia taxon is revealed as a new species and is herein introduced as Discosia ravennicasp. nov. while the Sporocadus taxon is identified as Sporocadus rosigena. Multi-locus phylogeny based on DNA sequence data of the large subunit (LSU) and internal transcribed spacer (ITS) of nuclear ribosomal genes, β-tubulin (β-tub) and RNA polymerase II second largest subunit (rpb2) showed that D. ravennica is related to D. neofraxinea but it forms an independent lineage that supports its new species status. The new taxon also differs from other Discosia species by its unilocular to bilocular, superficial and applanate conidiomata with basal stroma composed of cells of textura angularis, elongate-ampulliform conidiogenous cells and conidia smaller in size. Sporocadus rosigena is here reported as a new host record from Quercus ilex from Italy. Descriptions, illustrations and molecular data for both species are provided in this paper.

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One stop shop II: taxonomic update with molecular phylogeny for important phytopathogenic genera: 26–50 (2019)

Cited by 74 publications

References 302 publications

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Variation in Botryosphaeriaceae from Eucalyptus plantations in YunNan Province in southwestern China across a climatic gradient

Morpho-molecular characterization of Discosia ravennica sp. nov. and a new host record for Sporocadus rosigena

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