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dc.contributor.authorKildea, S.
dc.contributor.authorBucar, D.E.
dc.contributor.authorHutton, F.
dc.contributor.authorRosa, S. de la
dc.contributor.authorWelch, T.E.
dc.contributor.authorPhelan, S.
dc.date.accessioned2020-04-28T16:00:24Z
dc.date.available2020-04-28T16:00:24Z
dc.date.issued2019-06-15
dc.identifier.citationKildea, S., Bucar, D..E., Hutton, F., Rosa, S., Welch, T..E., & Phelan, S. (2019). Prevalence of QoI resistance and mtDNA diversity in the Irish Zymoseptoria tritici population, Irish Journal of Agricultural and Food Research, 58(1), 27-33. doi: https://doi.org/10.2478/ijafr-2019-0004en_US
dc.identifier.issn2009-9029
dc.identifier.issn0791-6833
dc.identifier.issn2009-9029
dc.identifier.urihttp://hdl.handle.net/11019/1893
dc.descriptionpeer-revieweden_US
dc.description.abstractThe emergence and spread of Quinone outside Inhibitor (QoI) fungicide resistance in the Irish Zymoseptoria tritici population in the early 2000s had immediate impacts on the efficacy of the entire group of fungicides for the control of septoria tritici blotch. As a result, a dramatic reduction in the quantities applied to winter wheat occurred in the following seasons. Even in the absence of these fungicides, the frequency of the resistance allele, G143A in the pathogens mtDNA has remained exceptionally high (>97%), and as such, it can be anticipated that continued poor efficacy of current QoI fungicides will be observed. Amongst the isolates with G143A, differences in sensitivity to the QoI pyraclostrobin were observed in vitro. The addition of the alternative oxidase (AOX) inhibitor salicylhydroxamic acid increased sensitivity in these isolates, suggesting some continued impairment of respiration by the QoI fungicides, albeit weak. Interestingly, amongst those tested, the strains from a site with a high frequency of inserts in the MFS1 transporter gene known to enhance QoI efflux did not exhibit this increase in sensitivity. A total of 19 mtDNA haplotypes were detected amongst the 2017 strain collection. Phylogenetic analysis confirmed the suggestion of a common ancestry of all the haplotypes, even though three of the haplotypes contained at least one sensitive strain.en_US
dc.language.isoenen_US
dc.publisherTeagascen_US
dc.relation.ispartofseriesIrish Journal of Agricultural and Food Research;
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectAgronomy and Crop Scienceen_US
dc.subjectAOXen_US
dc.subjectG143Aen_US
dc.subjectMFS1en_US
dc.subjectQoI fungicidesen_US
dc.subjectquinone outside inhibitoren_US
dc.subjectSHAMen_US
dc.titlePrevalence of QoI resistance and mtDNA diversity in the Irish Zymoseptoria tritici populationen_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.2478/ijafr-2019-0004
dc.contributor.sponsorDepartment of Agriculture, Food and the Marineen_US
dc.contributor.sponsorErasmus+ programmeen_US
dc.contributor.sponsorMexican National Council of Science and Technology (CONACYT)en_US
dc.contributor.sponsorGrantNumber11S113en_US
dc.source.volume58
dc.source.issue1
dc.source.beginpage27-33
refterms.dateFOA2020-04-28T16:00:25Z


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