Inheritance of resistance to Fusarium verticillioides ear rot in maize inbred lines of southern, West and Central Africa origin

dc.creatorTembo, E.
dc.creatorMinnaar-Ontong, A.
dc.creatorMenkir, A.
dc.creatorMarais, G.
dc.creatorMagorokosho, C.
dc.creatorLabuschagne, M.
dc.date2022-08-16T00:05:15Z
dc.date2022-08-16T00:05:15Z
dc.date2022
dc.date.accessioned2023-07-17T20:09:23Z
dc.date.available2023-07-17T20:09:23Z
dc.identifierhttps://hdl.handle.net/10883/22141
dc.identifier10.1002/csc2.20776
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7513903
dc.descriptionMaize (Zea mays L.) is an important crop in sub-Sahara Africa for both human consumption and livestock feed. Maize use is often limited by ear-rotting fungi, some of which produce deleterious secondary metabolites. The aim of this study was to determine the inheritance of resistance to Fusarium verticillioides as an indirect way of selecting for resistance to secondary metabolites such as the mycotoxin fumonisin that is produced by this fungus, under artificial inoculation and natural infection. Twelve inbred lines from Seed Co that were used as the females, were mated to 12 tester lines from the International Institute of Tropical Agriculture (IITA) that were used as males, using the North Carolina Design II. The resulting 144 F1 hybrids and six check hybrids were evaluated in Zimbabwe. Artificial inoculation with F. verticillioides was done at Rattray Arnold Research Station in the first season. The general (GCA) and specific combining ability (SCA) effects for F. verticillioides incidence were variable across sites for the lines and the testers. Six southern African inbred lines had desirable GCA for F. verticillioides ear rot and can be used as resistance sources. Outstanding testers from IITA that had negative GCA for F. verticillioides ear rot and fumonisins were identified. Both additive and nonadditive effects were implicated in resistance to ear rot caused by F. verticillioides and potential lines were identified that can be used in regional breeding programs.
dc.description1818-1833
dc.languageEnglish
dc.publisherJohn Wiley and Sons Inc
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source5
dc.source62
dc.source0011-183X
dc.sourceCrop Science
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectEar-Rotting Fungi
dc.subjectArtificial Inoculation
dc.subjectMAIZE
dc.subjectFUSARIUM
dc.subjectPEST RESISTANCE
dc.subjectBREEDING PROGRAMMES
dc.subjectFUMONISINS
dc.titleInheritance of resistance to Fusarium verticillioides ear rot in maize inbred lines of southern, West and Central Africa origin
dc.typeArticle
dc.typePublished Version
dc.coverageAfrica
dc.coverageUSA


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