Pyricularia graminis-tritici, a new Pyricularia species causing wheat blast

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dc.contributor.authorCastroagudín, V. L. [UNESP]
dc.contributor.authorMoreira, S. I.
dc.contributor.authorPereira, D. A.S. [UNESP]
dc.contributor.authorMoreira, S. S. [UNESP]
dc.contributor.authorBrunner, P. C.
dc.contributor.authorMaciel, J. L.N.
dc.contributor.authorCrous, P. W.
dc.contributor.authorMcDonald, B. A.
dc.contributor.authorAlves, E.
dc.contributor.authorCeresini, P. C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFederal University of Lavras
dc.contributor.institutionETH Zürich
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionCBS-KNAW Fungal Biodiversity Centre
dc.contributor.institutionUniversity of Pretoria
dc.contributor.institutionUtrecht University
dc.date.accessioned2018-12-11T16:45:33Z
dc.date.available2018-12-11T16:45:33Z
dc.date.issued2016-12-01
dc.description.abstractPyricularia oryzae is a species complex that causes blast disease on more than 50 species of poaceous plants. Pyricularia oryzae has a worldwide distribution as a rice pathogen and in the last 30 years emerged as an important wheat pathogen in southern Brazil. We conducted phylogenetic analyses using 10 housekeeping loci for 128 isolates of P. oryzae sampled from sympatric populations of wheat, rice, and grasses growing in or near wheat fields. Phylogenetic analyses grouped the isolates into three major clades. Clade 1 comprised isolates associated only with rice and corresponds to the previously described rice blast pathogen P. oryzae pathotype Oryza (PoO). Clade 2 comprised isolates associated almost exclusively with wheat and corresponds to the previously described wheat blast pathogen P. oryzae pathotype Triticum (PoT). Clade 3 contained isolates obtained from wheat as well as other Poaceae hosts. We found that Clade 3 is distinct from P. oryzae and represents a new species, Pyricularia graminis-tritici (Pgt). No morphological differences were observed among these species, but a distinctive pathogenicity spectrum was observed. Pgt and PoT were pathogenic and highly aggressive on Triticum aestivum (wheat), Hordeum vulgare (barley), Urochloa brizantha (signal grass), and Avena sativa (oats). PoO was highly virulent on the original rice host (Oryza sativa), and also on wheat, barley, and oats, but not on signal grass. We conclude that blast disease on wheat and its associated Poaceae hosts in Brazil is caused by multiple Pyricularia species. Pyricularia graminis-tritici was recently found causing wheat blast in Bangladesh. This indicates that P. graminis-tritici represents a serious threat to wheat cultivation globally.en
dc.description.affiliationDepartment of Phytopathology Rural Engineering and Soil Science Departamento de Fitossanidade Engenharia Rural e Solos UNESP- University of São Paulo State
dc.description.affiliationDepartment of Phytopathology Federal University of Lavras
dc.description.affiliationPlant Pathology Group Institute of Integrative Biology ETH Zürich
dc.description.affiliationBrazilian Agriculture Research Corporation-Wheat (EMBRAPA-Trigo)
dc.description.affiliationCBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, 3584 CT
dc.description.affiliationDepartment of Microbiology and Plant Pathology Forestry and Agricultural Biotechnology Institute (FABI) University of Pretoria
dc.description.affiliationDepartment of Biology Utrecht University, Padualaan 8, 3584 CH
dc.description.affiliationUnespDepartment of Phytopathology Rural Engineering and Soil Science Departamento de Fitossanidade Engenharia Rural e Solos UNESP- University of São Paulo State
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFinanciadora de Estudos e Projetos
dc.description.sponsorshipMilitary Manpower Administration
dc.description.sponsorshipIdCNPq: 307295/2015-0
dc.description.sponsorshipIdCNPq: PDJ 150490/2013-5
dc.description.sponsorshipIdCNPq: Pq-2 307361/2012-8
dc.format.extent199-216
dc.identifierhttp://dx.doi.org/10.3767/003158516X692149
dc.identifier.citationPersoonia: Molecular Phylogeny and Evolution of Fungi, v. 37, n. DECEMBER, p. 199-216, 2016.
dc.identifier.doi10.3767/003158516X692149
dc.identifier.issn1878-9080
dc.identifier.issn0031-5850
dc.identifier.lattes2635092058300854
dc.identifier.orcid0000-0003-2381-2792
dc.identifier.scopus2-s2.0-85009822926
dc.identifier.urihttp://hdl.handle.net/11449/169368
dc.language.isoeng
dc.relation.ispartofPersoonia: Molecular Phylogeny and Evolution of Fungi
dc.relation.ispartofsjr5,633
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCryptic species
dc.subjectHost adaptation
dc.subjectPhylogenetics
dc.subjectSystematics
dc.subjectTriticum aestivum
dc.titlePyricularia graminis-tritici, a new Pyricularia species causing wheat blasten
dc.typeArtigo
unesp.author.lattes2635092058300854[10]
unesp.author.orcid0000-0003-2381-2792[10]

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