1 / 15

Badre & Cooper

Badre & Cooper. Reduced Calcium Channel Function in the Drosophila cac TS2 mutant on Vision, Olfaction and Regulation of the Heart. Univ of Kentucky, Department of Biology. Previous Work. What are the Cac mutants?. Drosophila mutants:

dragon
Download Presentation

Badre & Cooper

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Badre & Cooper Reduced Calcium Channel Function in the DrosophilacacTS2 mutant on Vision, Olfaction and Regulation of the Heart Univ of Kentucky, Department of Biology

  2. Previous Work • What are the Cac mutants? • Drosophila mutants: • The mutated gene cacTS2, is a temperature sensitive paralytic allele of Drosophila calcium channel subunit gene (Brooks et al., 2003) • Known Effects: • Decrease synaptic transmission at the NMJ (Kawasaki et al., 2004). • Role in male courtship behavior (Chan et al., 2002) • Role in nerve development (Xing et al. 2005).

  3. Learning Test - Larvae Vision - Learning Part + + + + + + + + + + + + + + + + + + Before x 10 After + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Light + FRU Dark + QUI Gerber et al., 2003 Olfaction - Learning Part + + + + + + + + + + + + + + + + + + + + + + + Before x 10 After + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + OCT + FRU AM + QUI Hendel et al., 2005

  4. Results Learning Vision - 33°C • 24 animals • 4 trials

  5. Results Learning Olfaction - 33°C • 40 animals • 2 trials

  6. _ • _ • _ • _ • _ • _ • _ • _ • _ • _ • _ • _ T-maze - Adults 9.5 cm 9.5 cm 20.1 cm 1.2 cm 2.3 cm 2.3 cm 2.3 cm 2.3 cm

  7. Results – T-maze Vision 1 – Room Temp n = 5

  8. * Results – T-maze Vision 1 – 33°C n = 5

  9. Results – T-maze Vision 2 – Room Temp n = 5

  10. Results – T-maze Vision 2 – 33° C * * n = 5

  11. Results – T-maze Olfaction – Room Temp n = 5

  12. Results – T-maze Olfaction – 33°C * * n = 5

  13. Results Cardiac Activity - Larvae n = 5 n.s.

  14. Summary • Cac mutants larvae have decreased abilities to learn in both vision and olfaction at higher temperatures. • Cac mutants adults have decreased perception in both vision and olfaction at higher temperatures. • Cac mutants larvae do not have significantly altered heart rate at higher temperature.

  15. Future Directions • I am currently working on electroretinograms and electro-olfactorygrams . Acknowledgments: Arnold and Mabel Beckman Foundation, Ribble Fellowship, University of Kentucky Undergraduate Research Program, Society for the Promotion of Undergraduate Research.

More Related