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Abundance, diversity and geographic distribution of cassava mosaic disease pandemic-associated Bemisia tabaci in Tanzania

dc.contributor.authorTajebe, L.
dc.contributor.authorBoni, S.B.
dc.contributor.authorGuastella, D.
dc.contributor.authorCavalieri, V.
dc.contributor.authorLund, O.
dc.contributor.authorRugumamu, C.P.
dc.contributor.authorRapisarda, C.
dc.contributor.authorLegg, J.P.
dc.date.accessioned2019-12-04T11:03:36Z
dc.date.available2019-12-04T11:03:36Z
dc.date.issued2015-09-15
dc.identifier.citationTajebe, L.S., Boni, S.B., Guastella, D., Cavalieri, V., Lund, O.S., Rugumamu, C.P., ... & Legg, J.P. (2015). Abundance, diversity and geographic distribution of cassava mosaic disease pandemic‐associated Bemisia tabaci in Tanzania. Journal of Applied Entomology, 139(8), 627-637.
dc.identifier.issn0931-2048
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1159
dc.descriptionPublished online: 26 Dec 2014
dc.description.abstractBemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), one of the most economically important agricultural pests worldwide, is the vector of cassava mosaic geminiviruses that cause cassava mosaic disease (CMD). In East and Central Africa, a severe CMD pandemic that spread from Uganda in the late 1980s still continues to devastate cassava crops. To assess the association of distinct B. tabaci genetic groups with the CMD pandemic, mitochondrial cytochrome oxidase I gene sequences were analysed from whiteflies collected during surveys conducted from 2010 to 2013 in Tanzania. Four genetic groups – Sub-Saharan Africa 1 (SSA1), Mediterranean, Indian Ocean and East Africa 1, and a group of unknown whitefly species were identified. SSA1 comprised four subgroups: SSA1-SG1, SSA1-SG2, SSA1-SG1/2 and SSA1-SG3. SSA1-SG1 was confined to the pandemic-affected north-western parts of Tanzania whilst SSA1-SG2 and SSA1-SG3 were found in the central and eastern parts not yet affected by the pandemic. The CMD pandemic front was estimated to lie in Geita Region, north-western Tanzania, and to be spreading south-east at a rate of ca 26 km/year. The pandemic-associated B. tabaci SSA1-SG1 predominated up to 180 km ahead of the CMD front indicating that changes in whitefly population characteristics precede changes in disease characteristics.
dc.format.extent627-637
dc.language.isoen
dc.subjectCassava
dc.subjectBemisia Tabaci
dc.subjectAleyrodidae
dc.subjectWhiteflies
dc.titleAbundance, diversity and geographic distribution of cassava mosaic disease pandemic-associated Bemisia tabaci in Tanzania
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversità degli Studi
cg.contributor.affiliationUniversity of Copenhagen
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Dar es Salaam
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryTanzania
cg.coverage.countryUganda
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectCassava
cg.iitasubjectPlant Diseases
cg.journalJournal of Applied Entomology
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid78234
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/jen.12197


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