STABILITY OF INSECTICIDE RESISTANCE DUE TO AMPLIFICATION OF ESTERASE GENES IN CULEX-PIPIENS

被引：42
|
作者：
RAYMOND, M [1 ]
POULIN, E [1 ]
BOIROUX, V [1 ]
DUPONT, E [1 ]
PASTEUR, N [1 ]
机构：
[1] UNIV MONTPELLIER 2,GENET & ENVIRONNEMENT LAB,INST SCI EVOLUT,CNRS,URA 327,CASE COURRIER 64,F-34095 MONTPELLIER 05,FRANCE
来源：
HEREDITY | 1993年 / 70卷
关键词：
AMPLIFICATION; CULEX-PIPIENS; FITNESS COST; MOSQUITO; OVERPRODUCED ESTERASE;
D O I：
10.1038/hdy.1993.43
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
The stability of OP resistance due to amplification of esterase B1 or B2 was investigated in unselected strains. We show that resistance and amplification are both lost when strains are not homozygous for the presence of the amplified genes, due probably to fitness differences. In homozygous strains, both esterases remained amplified and expressed, and resistance was stable during at least 60 generations, indicating that events generating lower gene copy number are uncommon. Results are discussed with respect to the evolution of insecticide resistance.
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页码：301 / 307
页数：7
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