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Bionomics, morphometrics and molecular characterization of a cassava Bemisia afer (Priesner & Hosny) population

  • M.N. Maruthi (a1), S. Navaneethan (a1), John Colvin (a1) and Rory J. Hillocks (a1)
Abstract

Bionomics, morphometric measurements and partial mitochondrial cytochrome oxidase I gene (mtCOI) sequences were examined for a population of Bemisia afer (Priesner & Hosny) (Hemiptera: Aleyrodidae) collected from cassava in Uganda. The development of the eggs, first to fourth instar nymphs and adults required respectively, 12, 31 and 10 days, with a total life duration of approximately 53 days on the cassava cultivar Ebwanateraka. Each female laid one egg per day for 13 days and about 40% of the eggs failed to develop into adults. The male: female sex ratio was 1:4. The length and width of the four nymphal instars were positively correlated (correlation coefficient=0.97). Females were bigger than males and the sexes differed significantly based on body length (P<0.001) and width (P<0.001). Overlaps in their body sizes, however, makes sex assignment based on size alone unreliable. The B. afer population shared 68% mtCOI sequence (817 nucleotides) identity with a cassava Bemisia tabaci population (Namulonge) from Uganda. This is the first study on B. afer fecundity and morphometrics, and the variability that might exist in this species is discussed.

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*Email: M.N.Maruthi@greenwich.ac.uk
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P. K. Anderson , J. H. Martin , P. Hernandez & A. Lagnaout (2001) Bemisia afer sens. lat. (Homoptera: Aleyrodidae) outbreak in the Americas. Fla. Entomol. 84, 316317.

J. A. Bethke , T. D. Paine & G. S. Nuessly (1991) Comparative biology, morphometrics and development of two populations of Bemisia tabaci (Homoptera: Aleyrodidae) on cotton and poinsettia. Ann. Entomol. Soc. Am. 84, 407411.

D. N. Byrne & N. F. Hadley (1988) Particulate surface waxes of whiteflies; morphology, composition and waxing behaviour. Physiol. Entomol. 13, 267276.

D. R. Frohlich , I. Torres-Jerez , I. D. Bedford , P. G. Markham & J. K. Brown (1999) A phylogeographical analysis of Bemisia tabaci species complex based on mitochondrial DNA markers. Mol. Ecol. 8, 16831691.

D. Gerling (1985) Parasitoids attacking Bemisia tabaci (Hom: Aleyrodidae) in Eastern Africa. Entomophaga 30, 163165.

A. J. Halstead (1981) A whitefly pest of sweet bay. Plant Path. 30, 123.

J. H. Martin (1987) An identification to common whitefly pest species of the world (Homoptera, Aleyrodidae). Trop. Pest Manage. 33, 298322.

J. H. Martin , D. Mifsud & C. Rapisarda (2000) The whiteflies (Hemiptera; Aleyrodidae) of Europe and the Mediterranean basin. Bull. Entomol. Res. 90, 407448.

M. N. Maruthi , J. Colvin & S. Seal (2001) Mating compatibility, life-history traits and RAPD-PCR variation in Bemisia tabaci associated with the cassava mosaic disease pandemic in East Africa. Entomol. Exp. Appl. 99, 1323.

M. N. Maruthi , J. Colvin , S. Seal , G. Gibson & J. Cooper (2002) Co-adaptation between cassava mosaic geminiviruses and their local vector populations. Virus Res. 86, 7185.

N. Sharaf & Y. Batta (1985) Effects of some factors on the relationship between the whitefly Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) and the parasitoid Erectmocerus mundus Mercet (Hymenoptera: Aphelinidae). Z. Angew. Entomol. 99, 267276.

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International Journal of Tropical Insect Science
  • ISSN: 1742-7584
  • EISSN: 1742-7592
  • URL: /core/journals/international-journal-of-tropical-insect-science
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