Fitness costs and biological adaptability of Cry toxin-resistant field strains of Pink bollworm, Pectinophora Gossypiella (Saunders) from India.

ABSTRACT: Pink bollworm strains (F₀) collected from 59 geographically different locations across India were advanced to F₁ and screened for Cry toxin resistance using 21-days diet incorporation bioassay. The survived population from five locations with the highest LC₅₀ values for Cry1Ac were grouped as highly resistant, while those from five locations with lower LC₅₀ values were grouped as relatively less resistant. Similarly, populations with high and relatively low resistance to Cry2Ab were also developed. Further, these populations advanced to next generation. One-day-old neonate larvae from all populations, along with a susceptible strain (F₁₉₄), were exposed to various selected doses to evaluate the precise impact of these concentrations on

SUBMITTER: Rakhesh S 

PROVIDER: S-EPMC12508056 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature