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Characterization Of Cry1f Resistance In Fall Armyworm, Spodoptera Frugiperda (J.E. Smith) Obtained From Puerto Rico And Florida, Vikash Dangal
Characterization Of Cry1f Resistance In Fall Armyworm, Spodoptera Frugiperda (J.E. Smith) Obtained From Puerto Rico And Florida, Vikash Dangal
LSU Master's Theses
The fall armyworm (Spodoptera frugiperda (J. E. Smith)) is a major pest targeted by transgenic corn expressing Bacillus thuringiensis (Bt) proteins in both North and South America. The objective of this study was to characterize the inheritance and fitness costs of the Cry1F resistance in two fall armyworm populations collected from Puerto Rico (RR-PR) and Florida (RR-FL). To determine the inheritance of the resistance, besides RR-PR, RR-FL, and a Cry1F-susceptible population (Bt-SS), 14 other populations were developed by reciprocal crosses, F1 by F1 crosses, backcrosses, and crosses between RR-PR and RR-FL. Diet-incorporated bioassays were conducted to determine the Cry1F susceptibility …