A Modified F 1 Screening Method for Detecting Resistance Gene Alleles to Bt Cotton in Helicoverpa armigera ( Lepidoptera : Noctuidae ) '

@inproceedings{Liu2008AMF,
  title={A Modified F 1 Screening Method for Detecting Resistance Gene Alleles to Bt Cotton in Helicoverpa armigera ( Lepidoptera : Noctuidae ) '},
  author={Fengyi Liu and Zhiping Xu and Juhua Chang and Craig A. Abel and Jinliang Shen},
  year={2008}
}
J. Entomol. Sci. 43(3): 311-319 (July 2008) Abstract Large-scale cultivation of Bt cotton places high selection pressure on target insects and, consequently, may prompt resistance evolution in pest populations. To better monitor Btresistance allele frequency in field populations, a modification of the F 1 screen was developed to screen F 1 progeny derived from single pair mating between field-collected males and laboratory resistant females (designated as F 1 screen). This method was used to… CONTINUE READING