Evolution of resistance genes in absence of insecticide selection in a hypogeous population of Culex pipiens from the French Alps.
A monthly survey of resistance gene frequencies was conducted in a larval population of Culex pipiens breeding in an hypogeous site ("molestus" form) between July 1989 and September 1991, after interrupting mosquito control. Several significant variations in resistance gene frequency were observed. Some variations are explained by fitness differences between resistant and susceptible insects, others by an immigration of insects from the surrounding epigeous populations ("pipiens" form), which are highly resistant.
Rivet
Y
Y
Laboratoire de Génétique et Environnement, Institut des Sciences de l'Evolution (URA CNRS no. 327), Université de Montpellier II (case courrier 65), France.
Pasteur
N
N
D000110:Acetylcholinesterase / Q000235:genetics / Q000378:metabolism; D000818:Animals; D004390:Chlorpyrifos; D003465:Culex / Q000201:enzymology / Q000235:genetics*; D005602:France; D007305:Insecticide Resistance / Q000235:genetics; D007814:Larva; D009032:Mosquito Control; D000002:Temefos
D000110:Acetylcholinesterase; D004390:Chlorpyrifos; D000002:Temefos