Pupal Development, Longevity and Behavior ofCarmenta theobromae(Lepidoptera: Sesiidae)

Broad specifies pupal development

Molting and metamorphosis in insects are under the control of two hormones, the steroid ecdysone and the sesquiterpenoid juvenile hormone (JH) (Riddiford, 1994) [We use the term ‘ecdysone’ as a generic term to refer to the natural ecdysteroids that cause molting and metamorphosis, primarily α-ecdysone and its metabolite 20-hydroxyecdysone (Riddiford et al., 2001).] Ecdysone induces and coordina...

Cellular behavior in the developing Drosophila pupal retina

Correct patterning of cells within an epithelium is key to establishing their normal function. However, the precise mechanisms by which individual cells arrive at their final developmental niche remains poorly understood. We developed an optimized system for imaging the developing Drosophila retina, an ideal tissue for the study of cell positioning. Using this technique, we characterized the ce...

Regulation of decapentaplegic expression during Drosophila wing veins pupal development

The differentiation of veins in the Drosophila wing relies on localised expression of decapentaplegic (dpp) in pro-vein territories during pupal development. The expression of dpp in the pupal veins requires the integrity of the shortvein region (shv), localised 5' to the coding region. It is likely that this DNA integrates positive and negative regulatory signals directing dpp transcription du...

Calorie Restriction, Longevity and Cognitive Function

Drosophila Pupal Abdomen Immunohistochemistry

The Drosophila pupal abdomen is an established model system for the study of epithelial morphogenesis and the development of sexually dimorphic morphologies. During pupation, which spans approximately 96 hours (at 25 °C), proliferating populations of imaginal cells replace the larval epidermis to generate the adult abdominal segments. These imaginal cells, born during embryogenesis, exist as la...