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Response of cassava cultivars to African cassava mosaic virus infection across a range of inoculum doses and plant ages

dc.contributor.authorHoungue, J.A.
dc.contributor.authorPita, J.S.
dc.contributor.authorNgalle, H.B.
dc.contributor.authorZandjanakou-Tachin, M.
dc.contributor.authorFotso Kuate, A.
dc.contributor.authorCacaï, G.H.T.
dc.contributor.authorBell, J.M.
dc.contributor.authorAhanhanzo, C.
dc.date.accessioned2022-08-10T12:27:01Z
dc.date.available2022-08-10T12:27:01Z
dc.date.issued2019-12-23
dc.identifier.citationHoungue, J.A., Pita, J.S., Ngalle, H.B., Zandjanakou-Tachin, M., Kuate, A.F., Cacaï, G.H.T., ... & Ahanhanzo, C. (2019). Response of cassava cultivars to African cassava mosaic virus infection across a range of inoculum doses and plant ages. PloS One, 14(12): e0226783, 1-14.
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7629
dc.description.abstractCassava production in Africa is constrained by cassava mosaic disease (CMD) that is caused by the Cassava mosaic virus (CMV). The aim of this study was to evaluate the responses of a range of commonly cultivated West African cassava cultivars to varying inoculum doses of African cassava mosaic virus (ACMV). We grafted 10 cultivars of cassava plants with different inoculum doses of CMV (namely two, four, or six CMD-infected buds) when the experimental plants were 8, 10, or 12 weeks old, using non-inoculated plants as controls. Three cultivars showed disease symptoms when grafted with two buds, and four cultivars showed disease symptoms when grafted with four or six buds. Most cultivars became symptomatic six weeks after inoculation, but one (‘TMS92/0326’) was symptomatic two weeks after inoculation, and two (‘Ntollo’ and ‘Excel’) were symptomatic after four weeks. Root weight tended to be lower in the six-bud than in the two-bud dose, and disease severity varied with plant age at inoculation. These results indicate that the level of CMD resistance in cassava cultivars varies with inoculum dose and timing of infection. This will allow appropriate cultivars to be deployed in each production zone of Africa in accordance with the prevalence of CMD.
dc.description.sponsorshipEuropean Union
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-14
dc.language.isoen
dc.subjectCassava
dc.subjectBuds
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectPlant Diseases
dc.subjectVarieties
dc.titleResponse of cassava cultivars to African cassava mosaic virus infection across a range of inoculum doses and plant ages
dc.typeJournal Article
cg.contributor.affiliationUniversity of Abomey-Calavi
cg.contributor.affiliationUniversity of Yaoundé
cg.contributor.affiliationUniversite Felix Houphouet-Boigny
cg.contributor.affiliationNational University of Agriculture, Benin
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionCentral Africa
cg.coverage.regionWest Africa
cg.coverage.countryBenin (Dahomey)
cg.coverage.countryCameroon
cg.coverage.hubCentral Africa Hub
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidHOUNGUE:2019
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectDisease Control
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalPLOS ONE
cg.notesPublished online: 23 Dec 2019
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1371/journal.pone.0226783
cg.iitaauthor.identifierFotso Kuate, A.: 0000-0002-5247-7519
cg.futureupdate.requiredNo
cg.identifier.issue2
cg.identifier.volume14


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