Helicoverpa zea selected on Bt corn have wing shapes better suited to long distance flight.

ABSTRACT: Evolution of resistance within insects to pest control has resulted in changes to the organism's morphotype, including changes in wing shape. Both geometric morphometric and finite element method (FEM) were used to examine wing changes in Helicoverpa zea sampled from 4 different Bt corn treatments in North and South Carolina, United States. The 4 treatments were pure-stand non-Bt corn (treatment 1); pure-stand Bt corn with 2 toxins (Cry1Ab and Cry1F; treatment 2); pure-stand Bt corn with 3 toxins (Cry1Ab, Cry1F, and Vip3A; treatment 3); and seed blended Bt corn with 80% containing 3 toxins (Cry1AB, Cry1F, and Vip3A) and 20% having no toxins (treatment 5). Geometric morphometric analyses revealed significant wing shape differences in both female and male moths were driven by moderately sele

SUBMITTER: Mikac KM 

PROVIDER: S-EPMC12817315 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature