Monday, 27 October 2003
D0036

This presentation is part of : Student Competition Display Presentations, Section B. Physiology, Biochemistry, Toxicology, and Molecular Biology

Effects of male allatectomy on subsequent mating and egg output in Heliothis virescens

Angela M. Tucker1, Maciej A. Pszczolkowski1, Sonny B. Ramaswamy1, and Asoka Srinivasan2. (1) Kansas State University, Entomology, 123 West Waters Hall, Manhattan, KS, (2) Tougaloo College, Department of Biology, Kincheloe, Tougaloo, MS

During copulation, males of Heliothis virescens transfer juvenile hormone (JH) from their accessory glands to females. We suspect that the transferred JH influences the female reproductive mechanism by triggering appropriate behavioral changes and stimulating a multitude of endocrine processes, which promote oocyte maturation. In order to examine this hypothesis, males were allatectomozed soon after emergence and when they were 48 hours old, they were alloed to mate with normal females. The significance of male JH for female reproduction is discussed.

Species 1: Lepidoptera Noctuidae Heliothis virescens (tobacco budworm)
Keywords: oocytes, juvenile hormone

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