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dc.contributor.author
Martínez, Ana Laura  
dc.contributor.author
Garayalde, Antonio Francisco  
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Quiroz, Facundo José  
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Carrera, Alicia Delia  
dc.date.available
2023-10-19T18:25:32Z  
dc.date.issued
2021  
dc.identifier.citation
Genetic characterization of Plasmopara halstedii populations in Argentina using simple sequence repeats (SSR) and effectorbased markers; American Phytopathological Society North Central Division Meeting​; Iowa; Estados Unidos; 2021; S1.27-S1.27  
dc.identifier.issn
0031-949X  
dc.identifier.uri
http://hdl.handle.net/11336/215475  
dc.description.abstract
Argentina is the fourth leading producing country of sunflower worldwide. Sunflower downy mildew, caused by the pathogenPlasmopara halstedii, is an economically important disease of sunflower. Since 2012, P. halstedii epiphytotics were identified inseveral production regions of Argentina. However, the genetic diversity of the pathogen in Argentina remains largely unknown. Fortytwofield isolates from Argentina were analyzed using eight loci SSR. The number of alleles per locus (APL), the expected (HE) andobserved heterozygosity (HO) were determined. SSR data were analyzed with regions (two), collection years (four) and races (six) asvariation sources (AMOVA), and the population structure was defined (Bayesian method). DNA sequences of two effector genes wereobtained from two isolates per race and the polymorphisms were analyzed (ClustalW). The mean APL was 2.6, varying from 1 to 4(total 21). The highest number of alleles and races were found in 2017. Average HO and HE were 0 and 0.369, respectively. Geneticvariation was observed among regions (7%) and years (32%), but not between races. Based on effectors, local races were similar to agroup of French races, without variation within the ARG races. Increased genetic variability observed in recent years seems to parallelwith the emergence of novel races reducing fungicides and/or R genes efficacy. The effector study suggests that the races evolutiondepends on country specific factors.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
The American Phytopathological Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
plasmopara halstedii  
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SSR  
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Genetic characterization  
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Sunflower  
dc.subject.classification
Otras Ciencias Agrícolas  
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Otras Ciencias Agrícolas  
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CIENCIAS AGRÍCOLAS  
dc.title
Genetic characterization of Plasmopara halstedii populations in Argentina using simple sequence repeats (SSR) and effectorbased markers  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.type
info:eu-repo/semantics/conferenceObject  
dc.type
info:ar-repo/semantics/documento de conferencia  
dc.date.updated
2023-02-07T12:56:10Z  
dc.identifier.eissn
1943-7684  
dc.journal.volume
11  
dc.journal.number
9  
dc.journal.pagination
S1.27-S1.27  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Iowa  
dc.description.fil
Fil: Martínez, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. North Dakota State University; Estados Unidos  
dc.description.fil
Fil: Garayalde, Antonio Francisco. Universidad Nacional del Sur. Departamento de Matemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina  
dc.description.fil
Fil: Quiroz, Facundo José. Instituto Nacional de Tecnología Agropecuaria; Argentina  
dc.description.fil
Fil: Carrera, Alicia Delia. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1094/PHYTO-111-9-S1.26  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://apsjournals.apsnet.org/doi/10.1094/PHYTO-111-9-S1.26  
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Autor  
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Autor  
dc.conicet.rol
Autor  
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Autor  
dc.coverage
Internacional  
dc.type.subtype
Congreso  
dc.description.nombreEvento
American Phytopathological Society North Central Division Meeting​  
dc.date.evento
2021-06-15  
dc.description.ciudadEvento
Iowa  
dc.description.paisEvento
Estados Unidos  
dc.type.publicacion
Journal  
dc.description.institucionOrganizadora
American Phytopathological Society  
dc.source.revista
Phytopathology  
dc.date.eventoHasta
2021-06-16  
dc.type
Congreso