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The dominance levels and evolution of insect resistance to insecticides



The dominance levels and evolution of insect resistance to insecticides



Chinese Bulletin of Entomology 44(2): 186-190



The dominance levels of metabolic resistance and major target resistance to insecticides are interpreted, including the dominance levels of insect resistance to Bt. The variation of dominance levels and the relationship between dominance levels of resistance and the evolution of insect resistance to insecticides is also analyzed. It is figured that the frequency of the resistance allele expressed to be dominance rises faster than that of the resistance allele expressed to be recessive during the early stage of resistance evolution, and the situation will be reversed when the frequency of the resistance allele is high and the resistance homozygote individuals appear. The implications for Bt resistance management are stated in this paper.

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