Life Span of F1 Progeny of Female Drosophila Exposed to Low Intensity Terahertz Irradiation
2015
Virgin female fruit flies were stressed by placement into a confined space without food for 3 hours. Some flies were subjected to terahertz irradiation (0,1-2,2 THz) for the last 30 min. Irradiated and nonirradiated females were then copulated with males. We investigated the F1 progeny of fruit flies with mature and immature oocytes at the moment of irradiation (days of oviposition: 1-2 and 9-10 after irradiation). Life span of individual flies was evaluated. It was demonstrated that terahertz radiation does not influence the absolute and average lifespan of the F1 progeny in both sexes. In response to terahertz irradiation the sexual dimorphism was detected. Survival curves of males, developed from mature and immature oocytes at the time of irradiation, differ significantly from the appropriate control, whereas in the case of females the survival curves are similar to the control. It is concluded that terahertz radiation has a remote effect on a survival of the F1 male progeny.
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