Analysis of differences in dopamine content between two lines of Drosophila virilis in response to heat stress

• Published in: Journal of insect physiology Vol. 39; no. 9; pp. 761 - 767
• Main Authors: Rauschenbach, I.Y., Serova, L.I., Timochina, I.S., Chentsova, N.A., Schumnaja, L.V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 1993
• Subjects: Dopamine; Drosophila virilis; Heat stress; Dopamine; Drosophila virilis; Heat stress
• ISSN: 0022-1910; 1879-1611
• DOI: 10.1016/0022-1910(93)90051-R

The time course of changes in dopamine content during development was studied in Drosophila virilis under normal and stressful conditions. When development was normal, there were two dopamine peaks, one of which appeared during puparium formation, and the other during fly emergence. Short-term exposure to heat (60 min, 38°C) was found to be without influence on the dopamine content in pupae, but produced a rise in adult flies. Mechanical stress also produced an increase in dopamine content. D. virilis lines differing in dopamine content under normal conditions and in stress response of the dopamine system were established. The results of genetic analysis of these differences are presented. The gene (or genes) controlling differences in dopamine content under normal conditions is located on the X-chromosome, and the gene(s) controlling the differences in responsiveness of the dopamine system to stress was found to be autosomal.