« Previous Abstract"Identification of female sex pheromone in alfalfa blotch leafminer,Agromyza frontella (Rondani)(Diptera: Agromyzidae)"    Next AbstractLarge-Scale Evaluation of Association Between Pheromone Trap Captures and Cotton Boll Infestation for Pink Bollworm (Lepidoptera: Gelechiidae) »

J Econ Entomol

Title:		Effect of resistance to Bacillus thuringiensis cotton on pink bollworm (Lepidoptera: Gelechiidae) response to sex pheromone
Author(s):		Carriere Y; Nyboer ME; Ellers-Kirk C; Sollome J; Colletto N; Antilla L; Dennehy TJ; Staten RT; Tabashnik BE;
Address:		"Department of Entomology, 410 Forbes Bldg., P.O. Box 210036, Tucson, AZ 85721-0036, USA. ycarrier@ag.arizona.edu"
Journal Title:		J Econ Entomol
Year:		2006
Volume:		99
Issue:		3
Page Number:		946 - 953
DOI:		10.1603/0022-0493-99.3.946
ISSN/ISBN:		0022-0493 (Print) 0022-0493 (Linking)
Abstract:		"Fitness costs associated with resistance to transgenic crops producing toxins from Bacillus thuringiensis (Bt) could reduce male response to pheromone traps. Such costs would cause underestimation of resistance frequency if monitoring was based on analysis of males caught in pheromone traps. To develop a DNA-based resistance monitoring program for pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), we compared the response to pheromone traps of males with and without cadherin alleles associated with resistance to Bt cotton (Gossypium hirsutum L.). When irradiated males from two hybrid laboratory strains with an intermediate frequency of resistance alleles were released in large field cages, the probability of capture in pheromone traps was not lower for males with resistance alleles than for males without resistance alleles. These results suggest that analysis of trapped males would not underestimate the frequency of resistance. As the time males spent in traps in the field increased from 3 to 15 d, the success of DNA amplification declined from 100 to 30%. Thus, the efficiency of a DNA-based resistance monitoring program would be improved by analyzing males remaining in traps for 3 d or less"
Keywords:		"Animals Bacillus thuringiensis Toxins *Bacterial Proteins *Bacterial Toxins Cadherins/*genetics DNA *Endotoxins Gene Frequency Genotype Gossypium/genetics Hemolysin Proteins Insecticide Resistance/*physiology Male Moths/genetics/*physiology Plants, Geneti;"
Notes:		"MedlineCarriere, Yves Nyboer, Megan E Ellers-Kirk, Christa Sollome, James Colletto, Nick Antilla, Larry Dennehy, Timothy J Staten, Robert T Tabashnik, Bruce E eng Research Support, U.S. Gov't, Non-P.H.S. England 2006/07/04 J Econ Entomol. 2006 Jun; 99(3):946-53. doi: 10.1603/0022-0493-99.3.946"