Open AccessGenome evolution in an agricultural pest following adoption of transgenic crops
Author(s) -
Katherine L. Taylor,
Kelly A. Hamby,
Alexandra M DeYonke,
Fred Gould,
Megan L. Fritz
Publication year - 2021
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.2020853118
Subject(s) - biology , quantitative trait locus , pest analysis , bacillus thuringiensis , genetically modified crops , genetic architecture , genome , microbiology and biotechnology , genetics , helicoverpa zea , pesticide resistance , gene , transgene , agronomy , pesticide , noctuidae , botany , bacteria
Significance Evolution of resistance to management approaches in agricultural landscapes is common and results in economic losses. Early detection of pest resistance prior to significant crop damage would benefit the agricultural community. It has been hypothesized that new genomic approaches could track molecular signals of emerging resistance and trigger efforts to preempt widespread damage. We tested this hypothesis by quantifying genomic changes in the pestHelicoverpa zea over a 15-y period concurrent with commercialization of transgenicBacillus thuringiensis– expressing crops and their subsequent loss of efficacy. Our results demonstrate the complex nature of evolution in agricultural ecosystems and provide insight into the potential and pitfalls of using genomic approaches for resistance monitoring.