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Caputo B., Dani F. R., Horne G. L., N'Fale S., Diabate A., Turillazzi S., Coluzzi M., Costantini Carlo, Priestman A. A., Petrarca V., della Torre A. Comparative analysis of epicuticular lipid profiles of sympatric and allopatric field populations of Anopheles gambiae s.s. molecular forms and An. arabiensis from Burkina Faso (West Africa). Insect Biochemistry and Molecular Biology, 2007, 37 (4), p. 389-398.

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Lien direct chez l'éditeur doi:10.1016/j.ibmb.2007.01.002

TitreComparative analysis of epicuticular lipid profiles of sympatric and allopatric field populations of Anopheles gambiae s.s. molecular forms and An. arabiensis from Burkina Faso (West Africa)
Année de publication2007
Type de documentArticle
AuteursCaputo B., Dani F. R., Horne G. L., N'Fale S., Diabate A., Turillazzi S., Coluzzi M., Costantini Carlo, Priestman A. A., Petrarca V., della Torre A.
SourceInsect Biochemistry and Molecular Biology, 2007, 37 (4), p. 389-398.
RésuméWe analysed by gas chromatography-mass spectrometry (GC-MS) and Gas Chromatography-Flame Ionization Detector (GC-FID) the epicuticular lipid profiles of field females of the major Afro-tropical malaria vector, Anopheles gambiae. The samples were collected in three villages in Burkina Faso (West Africa), where An. gambiae M and S molecular forms and An. arabiensis live sympatrically. The aim was to compare the cuticular hydrocarbon (CHC) composition of individual field specimens of these three taxa, to highlight possible differences among them. All the samples analysed by GC-MS (55 individuals and eight pools) were characterized by the same 48 CHCs and 10 oxygenated compounds. The 19 most abundant CHCs were quantified in 174 specimens by GC-FID: quantitative intra-taxon differences were found between allopatric populations of both An. arabiensis and S-form. Inter-taxa quantitative differences in the relative abundances of some hydrocarbons between pairs of sympatric taxa were also found, which appear to be mainly linked to local situations, with the possible exception of diMeC(35) between An. arabiensis and S-form. Moreover, MeC29 shows some degree of differentiation between S- and M-form in all three villages. Possible causes of these differences are discussed.
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