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[Genetic analysis of differences in metabolism of juvenile hormone in lines of Drosophila virilis resistant and sensitive to heat stress].

The metabolism of juvenile hormone (JH) in imagos of two Drosophila species (D. virilis and D. melanogaster) was studied in the normal state and after short-term heat stress. Females of both species respond to stress by a decrease in the activity of JH esterase. This decrease is realized through a decrease in the amount of protein. JH metabolism in males does not change after heat stress. Genetic analysis of differences in the activity of DPF-resistant JH esterase in stress-sensitive and stress-resistant strains of D. virilis was performed. The differences are controlled by one autosomal gene.