Genetic diversity and geographic distribution of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) genotypes associated with cassava in East Africa

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dc.contributor.authorMugerwa, Habibu
dc.contributor.authorRey, Marie E. C.
dc.contributor.authorAlicai, Titus
dc.contributor.authorAteka, Elijah
dc.contributor.authorAtuncha, Hellen
dc.contributor.authorNdunguru, Joseph
dc.contributor.authorSseruwagi, Peter
dc.date.accessioned2022-02-15T19:47:28Z
dc.date.available2022-02-15T19:47:28Z
dc.date.issued2012
dc.description.abstractThe genetic variability of whitefly (Bemisia tabaci) species, the vectors of cassava mosaic begomoviruses (CMBs) in cassava growing areas of Kenya, Tanzania, and Uganda, was investigated through comparison of partial sequences of the mitochondria cytochrome oxidase I (mtCOI) DNA in 2010/11. Two distinct species were obtained including sub-Saharan Africa 1 (SSA1), comprising of two sub-clades (I and II), and a South West Indian Ocean Islands (SWIO) species. Among the SSA1, sub-clade I sequences shared a similarity of 97.8–99.7% with the published Uganda 1 genotypes, and diverged by 0.3–2.2%. A pairwise comparison of SSA1 sub-clade II sequences revealed a similarity of 97.2–99.5% with reference southern Africa genotypes, and diverged by 0.5–2.8%. The SSA1 sub-clade I whiteflies were widely distributed in East Africa (EA). In comparison, the SSA1 sub-clade II whiteflies were detected for the first time in the EA region, and occurred predominantly in the coast regions of Kenya, southern and coast Tanzania. They occurred in low abundance in the Lake Victoria Basin of Tanzania and were widespread in all four regions in Uganda. The SWIO species had a sequence similarity of 97.2–97.7% with the published Reunion sequence and diverged by 2.3–2.8%. The SWIO whiteflies occurred in coast Kenya only. The sub-Saharan Africa 2 whitefly species (Ug2) that was associated with the severe CMD pandemic in Uganda was not detected in our studyen_US
dc.identifier.citationMugerwa, H., Rey, M. E., Alicai, T., Ateka, E., Atuncha, H., Ndunguru, J., & Sseruwagi, P. (2012). Genetic diversity and geographic distribution of B emisia tabaci (G ennadius)(H emiptera: A leyrodidae) genotypes associated with cassava in East Africa. Ecology and Evolution, 2(11), 2749-2762. doi: 10.1002/ece3.379en_US
dc.identifier.other10.1002/ece3.379
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/2159
dc.language.isoenen_US
dc.publisherEcology and Evolutionen_US
dc.subjectCytochrome oxidase I (mtCOI)en_US
dc.subjectGenetic diversityen_US
dc.subjectGeographic distributionen_US
dc.subjectMitochondriaen_US
dc.subjectWhiteflyen_US
dc.titleGenetic diversity and geographic distribution of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) genotypes associated with cassava in East Africaen_US
dc.typeArticleen_US
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