Fitness Costs of Insecticide Resistance in Natural Breeding Sites of the Mosquito Culex Pipiens

Bourguet, Denis; Guillemaud, Thomas; Chevillon, Christine; Raymond, M.

doi:10.1554/03-423

Cited by 59 publications

(63 citation statements)

References 81 publications

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“…Until now, reversion to susceptibility has often been observed in laboratory or field populations of insects, and fitness costs or deleterious effects of resistance genes have been observed (mosquito Culex pipiens: Berticat et al, 2002;Berticat et al, 2004;Bourguet et al, 2004 : Foster et al, 2003;Foster et al, 2005). If resistance factors have disadvantageous effects on fitness, it is expected that the frequencies of resistance factors within insect populations tend to decrease under no insecticide environments, which results in the tendency towards a decrease in levels of resistance to insecticides within insect populations (Crow, 1957).…”

Section: Resultsmentioning

confidence: 99%

Seasonal fluctuation in susceptibility to insecticides within natural populations of Drosophila melanogaster. II. Features of genetic variation in susceptibility to organophosphate insecticides within natural populations of D. melanogaster

2006

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To elucidate genetic variation in susceptibility to organophosphate insecticides within natural populations of Drosophila melanogaster , we conducted an analysis of variance for mortality data sets of isofemale lines (10-286 lines) used in the previous studies. Susceptibility of isofemale lines to the three organophosphate insecticides was continuously distributed within each natural population, ranging from susceptible to resistant. Analysis of variance showed highly significant variation among isofemale lines in susceptibility to each insecticide for each natural population. Significant genetic variances in susceptibility to the three chemicals were estimated for the Katsunuma population; 0.0529-0.2722 for malathion, 0.0492-0.1603 for prothiophos, and 0.0469-0.1696 for fenitrothion. Contrary to the consistent seasonal tendency towards an increase in mean susceptibility in the fall, reported in the previous study, genetic variances in susceptibility to the three organophosphates did not change significantly in 1997 but tended to increase by 2-to 5-times in 1998. We tested whether both the observed situations, maintenance and increase in genetic variance in organophosphate resistance, can be generated under circumstances in which the levels of resistance to the three organophosphates tended to decrease, by conducting a simulation analysis, based on the hypothesis that resistant genotypes have lower fitnesses than susceptible ones under the density-independent condition. The simulation analysis generally explained the pattern in the mean susceptibility and genetic variances in susceptibility to the three organophosphates, observed in the Katsunuma population of D. melanogaster . It was suggested that the differences in the frequencies of resistance genes in the summer population could affect the patterns in genetic variance in organophosphate resistance in the fall population.

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Section: Resultsmentioning

confidence: 99%

Seasonal fluctuation in susceptibility to insecticides within natural populations of Drosophila melanogaster. II. Features of genetic variation in susceptibility to organophosphate insecticides within natural populations of D. melanogaster

2006

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“…Regarding the fitness costs, many studies reported the deleterious pleiotropic effects of insecticide resistance on several life history traits affecting fitness (Roush and Plapp, 1982;Minkoff and Wilson, 1992;Carriere et al, 1994;Zhu et al, 1996;Boivin et al, 2001;Bourguet et al, 2004). For development time, our results show that the fenitrothionresistant strain (GFR) has a significantly longer pre-adult development time compared with the parental GS strain (Table 3).…”

Section: Discussionmentioning

confidence: 63%

“…Many studies have shown that there is little or no fitness difference between resistant and susceptible strains for some resistant insect strains (Baker et al, 1998;Haubruge and Arnaud, 2001, 2002, Bielza et al, 2009Castaneda et al, 2011). Reasons for not observing any fitness cost related with resistance could be as follows: 1) Resistance costs would be apparent only in specific environmental conditions, and thus these resistance costs would not be detected in experimental laboratory conditions (Foster et al, 2003;Bourguet et al, 2004). For example, Foster et al (2003) showed that houseflies expressing knockdown kdr mutation, which grants resistance against pyrethroids and DDT, exhibit behavioral differences related with fitness in comparison with susceptible individuals.…”

Section: Discussionmentioning

confidence: 99%

“…By measuring reproductive, developmental, and behavioral fitness components of numerous resistant insect species, many studies have recorded the fitness costs of resistance alleles in the absence of insecticide selection pressure (Clarke and McKenzie, 1987;Rowland, 1991aRowland, , 1991bMinkoff and Wilson, 1992;Boivin et al, 2001;Boivin et al, 2003;Foster et. al., 2003;Bourguet et al, 2004;Liu and Han, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Effects of artificial migration of susceptible individuals on resistance and fitness of a fenitrothion-resistant strain of Musca domestica (L.) Diptera

Kuyucu

Çağlar²

2013

Turk J Zool

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“…For example, Þtness costs of resistance to the parasitoid Asobara tabida Nees (Hymenoptera: Braconidae) in Drosophila melanogaster Meigen (Diptera: Drosophilidae) were greater when larvae were reared with more intense intraspeciÞc competition (Kraaijeveld and Godfray 2009). Similarly, Þtness costs for resistance to organophosphate insecticide in Culex pipiens L. (Diptera: Culicidae) were magniÞed by crowding (Bourguet et al 2004). Although it is increasingly recognized that ecological factors can inßuence Þtness costs, an understanding of the mechanistic basis of such effects is largely lacking (Strauss et al 2002, Gassmann et al 2009a, Vila-Aiub et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Effects of Four Nematode Species on Fitness Costs of Pink Bollworm Resistance to Bacillus thuringiensis Toxin Cry1Ac

et al. 2010

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Evolution of resistance by pests can reduce the efficacy of transgenic crops that produce insecticidal toxins from the bacterium Bacillus thuringiensis Berliner (Bt). In conjunction with refuges of non-Bt host plants, fitness costs can delay the evolution of resistance. Furthermore, fitness costs often vary with ecological conditions, suggesting that agricultural landscapes can be manipulated to magnify fitness costs and thereby prolong the efficacy of Bt crops. In the current study, we tested the effects of four species of entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) on the magnitude and dominance of fitness costs of resistance to Bt toxin CrylAc in pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae). For more than a decade, field populations of pink bollworm in the United States have remained susceptible to Bt cotton Gossypium hirsutum L. producing CrylAc; however, we used laboratory strains that had a mixture of susceptible and resistant individuals. In laboratory experiments, dominant fitness costs were imposed by the nematodeSteinernema riobrave Cabanillas, Poinar, and Raulston but no fitness costs were imposed bySteinernema carpocapsae Weiser, Steinernema sp. (ML18 strain), or Heterorhabditis sonorensis Stock, Rivera-Orduño, and Flores-Lara. In computer simulations, evolution of resistance to CrylAc by pink bollworm was substantially delayed by treating some non-Bt cotton refuge fields with nematodes that imposed a dominant fitness cost, similar to the cost observed in laboratory experiments with S. riobrave. Based on the results here and in related studies, we conclude that entomopathogenic nematodes could bolster insect resistance management, but the success of this approach will depend on selecting the appropriate species of nematode and environment, as fitness costs were magnified by only two of five species evaluated and also depended on environmental factors. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. ABSTRACT Evolution of resistance by pests can reduce the efÞcacy of transgenic crops that produce insecticidal toxins from the bacterium Bacillus thuringiensis Berliner (Bt). In conjunction with refuges of non-Bt host plants, Þtness costs can delay the evolution of resistance. Furthermore, Þtness costs often vary with ecological conditions, suggesting that agricultural landscapes can be manipulated to magnify Þtness costs and thereby prolong the efÞcacy of Bt crops. In the current study, we tested the effects of four species of entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) on the magnitude and dominance of Þtness costs of resistance to Bt toxin Cry1Ac in pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae). For more than a decade, Þeld populations of pink bollworm in the United States have remained susceptible to Bt cotton Gossypium hirsutum L. producing Cry1Ac; however,...

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Fitness Costs of Insecticide Resistance in Natural Breeding Sites of the Mosquito Culex Pipiens

Cited by 59 publications

References 81 publications

Seasonal fluctuation in susceptibility to insecticides within natural populations of Drosophila melanogaster. II. Features of genetic variation in susceptibility to organophosphate insecticides within natural populations of D. melanogaster

Seasonal fluctuation in susceptibility to insecticides within natural populations of Drosophila melanogaster. II. Features of genetic variation in susceptibility to organophosphate insecticides within natural populations of D. melanogaster

Effects of artificial migration of susceptible individuals on resistance and fitness of a fenitrothion-resistant strain of Musca domestica (L.) Diptera

Effects of Four Nematode Species on Fitness Costs of Pink Bollworm Resistance to Bacillus thuringiensis Toxin Cry1Ac

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