Quantitative resistance to bacterial pathogens of rice

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cg.contributor.affiliationInternational Center for Tropical Agricultureen
cg.contributor.affiliationInternational Rice Research Instituteen
cg.identifier.urlhttps://apsnet.confex.com/apsnet/ICPP2018/meetingapp.cgi/Paper/3805en
cg.subject.ciatPESTS AND DISEASESen
cg.subject.ciatRICEen
dc.contributor.authorLeach, Jan E.en
dc.contributor.authorBossa Castro, Ana M.en
dc.contributor.authorHuerta, Alejandra I.en
dc.contributor.authorDelorean, Emily E.en
dc.contributor.authorRaghavan, Chitraen
dc.contributor.authorTekete, Cheicken
dc.contributor.authorDereeper, Alexisen
dc.contributor.authorTonnessen, Bradley W.en
dc.contributor.authorKoita, Ousmaneen
dc.contributor.authorMosquera Cifuentes, Gloria Mariaen
dc.contributor.authorLeung, Heien
dc.contributor.authorVerdier, Valerie M.en
dc.date.accessioned2018-11-22T18:52:11Zen
dc.date.available2018-11-22T18:52:11Zen
dc.identifier.urihttps://hdl.handle.net/10568/98289
dc.titleQuantitative resistance to bacterial pathogens of riceen
dcterms.abstractDisease resistance is the foundation for managing many plant diseases, because resistant varieties have the strongest impact with minimal environmental effects or cost. Consequently, sources of broad-spectrum resistance (BSR), or resistance that is effective against multiple and/or diverse pathogens is of particular interest. However, achieving BSR depends on having effective resistance sources to introgress into elite germplasm. Multi-parent Advanced Generation Inter-Cross (MAGIC) populations are powerful tools for identifying resistance because they have high levels of recombination and enhanced resolution relative to biparental populations. We screened an indica rice MAGIC population developed from eight elite founders for BSR to diverse strains of the rice bacterial blight and leaf streak pathogens Xanthomonas oryzae pv. oryzae (Xoo) and X. o. pv. oryzicola (Xoc), respectively. In addition, building on our hypothesis that durable disease resistance is attainable by targeting key microbial virulence factors, we screened for resistance to Xoo strains isogenic for the known and common virulence factor TAL7b. A combination of genome-wide association studies and interval mapping analyses revealed a number of loci that conferred BSR to both Xoo and Xoc, as well as resistance targeted at TAL7b. These BSR QTL are excellent sources for durable, broadly effective resistance in the field.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationLeach, Jan E.; Bossa-Castro, Ana M.; Huerta, Alejandra I.; Delorean, Emily; Raghavan, Chitra; Tekete, Cheick; Dereeper, Alexis; Tonnessen, Bradley W.; Koita, Ousmane; Mosquera Cifuentes, Gloria; Leung, Hei & Verdier, Valerie. (2018). Quantitative resistance to bacterial pathogens of rice. In: International Congress of Plant Pathology (ICPP) 2018: Plant Health in a Global Economy July 29- August 3-2018. 1 p.en
dcterms.extent1 p.en
dcterms.issued2018-07en
dcterms.languageen
dcterms.licenseOther
dcterms.subjectoryza sativaen
dcterms.subjectriceen
dcterms.subjectdisease resistanceen
dcterms.subjectresistencia a la enfermedaden
dcterms.subjectxanthomonasen
dcterms.subjectquantitative trait locien
dcterms.typeConference Proceedings

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