A sex-linked Ace gene, not linked to insensitive acetylcholinesterase-mediated insecticide resistance in Culex pipiens
نویسندگان
چکیده
منابع مشابه
Independent duplications of the acetylcholinesterase gene conferring insecticide resistance in the mosquito Culex pipiens.
Gene duplication is thought to be the main potential source of material for the evolution of new gene functions. Several models have been proposed for the evolution of new functions through duplication, most based on ancient events (Myr). We provide molecular evidence for the occurrence of several (at least 3) independent duplications of the ace-1 locus in the mosquito Culex pipiens, selected i...
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The Culex pipiens complex in Asia includes a temperate subspecies, Culex pipiens pallens, of uncertain taxonomic status. The shape of the male genitalia suggests it is a hybrid between Cx. pipiens and Cx. quinquefasciatus. We studied populations of Cx. p. pallens in Japan, Korea, and China and compared them to local populations of Cx. quinquefasciatus and Cx. p. pipiens. We examined variation i...
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The extensive use of insecticides to control vector populations has lead to the widespread development of different mechanisms of insecticide resistance. Mutations that confer insecticide resistance are often associated to fitness costs that prevent them from spreading to fixation. In vectors, such fitness costs include reductions in preimaginal survival, adult size, longevity, and fecundity. T...
متن کاملPopulation genetics of insecticide resistance in the mosquito Culex pipiens
Thirty years of control of the mosquito Culex pipiens using organophosphate insecticides (OP) has selected for OP-resistance alleles on a world-wide scale. As reviewed here, studies at the levels of gene and population allow identification of the main forces driving this process of adaptation. Three loci are involved in OP-resistance in C. pipiens. For two of these, adaptive mutations were foun...
متن کاملThe acetylcholinesterase gene Ace: a diagnostic marker for the Pipiens and Quinquefasciatus forms of the Culex pipiens complex.
The taxonomy of the Culex pipiens complex remains a controversial issue in mosquito systematics. Based on morphologic characters, 2 allopatric taxa are recognized, namely Cx. pipiens (including the form "molestus") in temperate areas and Cx. quinquefasciatus in tropical areas. Here we report on variability at the nucleotide level of an acetylcholinesterase gene in several strains and natural po...
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ژورنال
عنوان ژورنال: Insect Molecular Biology
سال: 1998
ISSN: 0962-1075,1365-2583
DOI: 10.1046/j.1365-2583.1998.72055.x