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A single p450 allele associated with insecticide resistance in Drosophila.
Daborn, P J; Yen, J L; Bogwitz, M R; Le Goff, G; Feil, E; Jeffers, S; Tijet, N; Perry, T; Heckel, D; Batterham, P; Feyereisen, R; Wilson, T G; ffrench-Constant, R H.
Afiliación
  • Daborn PJ; Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, UK.
Science ; 297(5590): 2253-6, 2002 Sep 27.
Article en En | MEDLINE | ID: mdl-12351787
Insecticide resistance is one of the most widespread genetic changes caused by human activity, but we still understand little about the origins and spread of resistant alleles in global populations of insects. Here, via microarray analysis of all P450s in Drosophila melanogaster, we show that DDT-R, a gene conferring resistance to DDT, is associated with overtranscription of a single cytochrome P450 gene, Cyp6g1. Transgenic analysis of Cyp6g1 shows that overtranscription of this gene alone is both necessary and sufficient for resistance. Resistance and up-regulation in Drosophila populations are associated with a single Cyp6g1 allele that has spread globally. This allele is characterized by the insertion of an Accord transposable element into the 5' end of the Cyp6g1 gene.
Asunto(s)
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Resistencia a los Insecticidas / Genes de Insecto / Sistema Enzimático del Citocromo P-450 / Proteínas de Drosophila / DDT / Drosophila melanogaster / Insecticidas Tipo de estudio: Risk_factors_studies Límite: Animals Idioma: En Revista: Science Año: 2002 Tipo del documento: Article Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Resistencia a los Insecticidas / Genes de Insecto / Sistema Enzimático del Citocromo P-450 / Proteínas de Drosophila / DDT / Drosophila melanogaster / Insecticidas Tipo de estudio: Risk_factors_studies Límite: Animals Idioma: En Revista: Science Año: 2002 Tipo del documento: Article Pais de publicación: Estados Unidos