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Genetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at Centers of origin and utilization

dc.contributor.authorWeeds, P. L.
dc.contributor.authorChakraborty, S.
dc.contributor.authorFernandes, C. D. [UNESP]
dc.contributor.authorCharchar, M. J D A
dc.contributor.authorRamesh, C. R.
dc.contributor.authorKexian, Y.
dc.contributor.authorKelemu, S.
dc.contributor.institutionLong Pocket Laboratories
dc.contributor.institutionUniversity of Queensland
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionIGFRI
dc.contributor.institutionCATAS
dc.contributor.institutionCtro. Internacional de Agric. Trop.
dc.date.accessioned2014-05-27T11:20:36Z
dc.date.available2014-05-27T11:20:36Z
dc.date.issued2003-02-01
dc.description.abstractUsing molecular markers, this work compares the genetic diversity in Colletotrichum gloeosporioides infecting species of the tropical forage legume Stylosanthes at the center of origin in Brazil and Colombia with that of Australia, China, and India, where Srylosanthes spp. have been introduced for commercial use. There was extensive diversity in the pathogen population from Brazil, Colombia, China, and India. The Australian pathogen population was least diverse probably due to its geographical isolation and effective quarantine. The extensive diversity in China and India means that threats from exotic pathogen races to Stylosanthes pastures can potentially come from countries outside the South American center of origin. In Brazil and India, both with native Stylosanthes populations, a high level of genetic differentiation in the pathogen population was associated with sites where native or naturalized host population was widely distributed. There was limited genetic diversity at germplasm evaluation sites, with a large proportion of isolates having identical haplotypes. This contrasts recent pathogenicity results for 78 of the Brazilian isolates that show hot spots of complex races are more common around research stations where host germplasm are tested, but few are found at sites containing wild host populations. For a pathogen in which the same races arise convergently from different genetic backgrounds, this study highlights the importance of using both virulence and selectively neutral markers to understand pathogen population structure.en
dc.description.affiliationCmw. Sci./Indust. Res. Organization Plant Industry Long Pocket Laboratories, Indooroopilly, QLD
dc.description.affiliationCoop. Res. Ctr. for Trop. Plant P. University of Queensland, Brisbane, QLD
dc.description.affiliationEMBRAPA-CNPGC/UNESP-FCA, Botucatu-SP 18609-490
dc.description.affiliationEMBRAPA-CPAC, Brasilia 73.3000
dc.description.affiliationIGFRI, Dharwad 580005
dc.description.affiliationCATAS, Danzhou 571737, Hainan
dc.description.affiliationCtro. Internacional de Agric. Trop., Apartado Aéreo 6713, Cali
dc.description.affiliationUnespEMBRAPA-CNPGC/UNESP-FCA, Botucatu-SP 18609-490
dc.format.extent176-185
dc.identifierhttp://dx.doi.org/10.1094/PHYTO.2003.93.2.176
dc.identifier.citationPhytopathology, v. 93, n. 2, p. 176-185, 2003.
dc.identifier.doi10.1094/PHYTO.2003.93.2.176
dc.identifier.issn0031-949X
dc.identifier.scopus2-s2.0-0037301390
dc.identifier.urihttp://hdl.handle.net/11449/67185
dc.identifier.wosWOS:000180468200006
dc.language.isoeng
dc.relation.ispartofPhytopathology
dc.relation.ispartofjcr3.036
dc.rights.accessRightsAcesso abertopt
dc.sourceScopus
dc.subjectAnthracnose
dc.subjectPathogen surveys
dc.subjectRandom amplified polymorphic DNA
dc.subjectColletotrichum
dc.subjectFungi
dc.subjectGlomerella cingulata
dc.subjectMyxogastria
dc.subjectStylosanthes
dc.titleGenetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at Centers of origin and utilizationen
dc.typeArtigopt
dcterms.licensehttp://apsjournals.apsnet.org/page/terms.jsp
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agronômicas, Botucatupt

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