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Influence of olfaction in host-selection behavior of the cassava whitefly Bemisia tabaci

dc.contributor.authorMrisho, L.
dc.contributor.authorMaeda, D.G.
dc.contributor.authorOrtiz, Z.M.
dc.contributor.authorGhanavi, H.R.
dc.contributor.authorLegg, J.
dc.contributor.authorStensmyr, M.
dc.date.accessioned2022-02-01T11:15:25Z
dc.date.available2022-02-01T11:15:25Z
dc.date.issued2021-11
dc.identifier.citationMrisho, L., Maeda, D.G., Ortiz, Z.M., Ghanavi, H.R., Legg, J. & Stensmyr, M. (2021). Influence of olfaction in host-selection behavior of the cassava whitefly Bemisia tabaci. Frontiers in Ecology and Evolution, 9: 775778, 1-13.
dc.identifier.issn2296-701X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7335
dc.description.abstractCassava is a vital food-security crop in Sub-Saharan Africa. Cassava crops are, however, severely affected by viral diseases transmitted by members of the whitefly species complex Bemisia tabaci. We have here investigated the role of olfaction in host selection behavior of the cassava whitefly B. tabaci SSA-ESA biotype. Surprisingly, we find that the whiteflies appear to make little use of olfaction to find their favored host. The cassava whitely shows a highly reduced olfactory system, both at the morphological and molecular level. Whitefly antennae possess only 15 sensilla with possible olfactory function, and from the genome we identified just a handful of candidate chemoreceptors, including nine tuning odorant receptors, which would afford the whitefly with one of the smallest olfactomes identified from any insect to date. Behavioral experiments with host and non-host plants, as well as with identified specific volatiles from these sources, suggest that the few input channels present are primarily tuned toward the identification of unwanted features, rather than favored ones, a strategy quite unlike most other insects. The demonstrated repellence effect of specific volatile chemicals produced by certain plants unflavored by whiteflies suggests that intercropping with these plants could be a viable strategy to reduce whitefly infestations in cassava fields.
dc.description.sponsorshipU-Forsk Program of the Swedish Research Council
dc.description.sponsorshipInternational Institute of Tropical Agriculture
dc.format.extent1-13
dc.language.isoen
dc.subjectOlfaction
dc.subjectWhiteflies
dc.subjectCassava
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectBemisia Tabaci
dc.subjectEast Africa
dc.titleInfluence of olfaction in host-selection behavior of the cassava whitefly Bemisia tabaci
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversity of Dar es Salaam
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationLund University, Sweden
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryTanzania
cg.coverage.hubEastern Africa Hub
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidMRISHO:2021
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectDisease Control
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalFrontiers in Ecology and Evolution
cg.notesOpen Access Journal; Published online: 18 Nov 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.3389/fevo.2021.775778
cg.iitaauthor.identifierJames Legg: 0000-0003-4140-3757
cg.futureupdate.requiredNo
cg.identifier.issue775778
cg.identifier.volume9


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