Molecular Genetic Basis of Lab- and Field-Selected Bt Resistance in Pink Bollworm.

ABSTRACT: Transgenic crops producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) control some important insect pests. However, evolution of resistance by pests reduces the efficacy of Bt crops. Here we review resistance to Bt cotton in the pink bollworm, Pectinophora gossypiella, one of the world's most damaging pests of cotton. Field outcomes with Bt cotton and pink bollworm during the past quarter century differ markedly among the world's top three cotton-producing countries: practical resistance in India, sustained susceptibility in China, and eradication of this invasive lepidopteran pest from the United States achieved with Bt cotton and other tactics. We compared the molecular genetic basis of pink bollworm resistance between lab-selected strains from the

SUBMITTER: Fabrick JA 

PROVIDER: S-EPMC9959750 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature