GENETIC-ANALYSIS OF DIFFERENCES IN METABO LISM OF JUVENILE-HORMONE INLINES OF DROSOPHILA-VIRILIS THAT ARE RESISTANT AND SENSITIVE TO HEAT-SHOCK

The metabolism of juvenile hormone (JH) in imagoes of two Drosophila s pecies (D. virilis and D. melanogaster) was studied in the normal stat e 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 i n males does not change after heat stress. Genetic analysis of differe nces in the activity of DPF-resistant JH esterase in stress-sensitive and stress-resistant strains of D. virilis was performed. The differen ces are controlled by one autosomal gene.