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1. Introduction
2. Caenorhabditis elegans (C. elegans)
3. Features of C. elegans
4. Two sexes in C. elegans
5. Hermaphrodite
6. Uses of male C. elegans
7. Talk's objectives
8. Features of C. elegans male
9. Neurons are involved in male mating behavior
10. Mating behavior of male C. elegans
11. Spicule insertion behavior
12. Anatomy of the male spicule
13. The male spicule - gubernaculum
14. The male spicule - sensory neurons
15. The male spicule - SPC neurons
16. Post cloacal sensilla neurons
17. Spicule contractions
18. Wiring of the spicule protraction circuit
19. Ach stimulates cells via 2 types of receptors (1)
20. Ach stimulates cells via 2 types of receptors (2)
21. Ach agonists induce spicule contraction (1)
22. Ach agonists induce spicule contraction (2)
23. Ach receptors operate through calcium channels
24. Ach agonists which induce contraction
25. UNC-68 mediated Ca release
26. EGl-19 and sustained spicule contractions
27. Regulation of spicule insertion behavior (1)
28. Regulation of spicule insertion behavior (2)
29. Negative regulators
30. The 'Prc phenotype'
31. UNC-103: ERG-like K channel (1)
32. UNC-103: ERG-like K channel (2)
33. UNC-103 K+ channels role during copulation
34. UNC 43 CamKII (1)
35. UNC 43 CamKII (2)
36. UNC 103 and UNC 43 mutations
37. CamKII is required during food restriction
38. Molecules required to suppress UNC-103(0) (1)
39. Molecules required to suppress UNC-103(0) (2)
40. Molecules required to suppress UNC-103(0) (3)
41. Sensory neurons and food deprivation
42. AWC neurons during food deprivation
43. Starvation-induced suppression of unc-103(0)
44. Food deprivation reduces cholinergic signaling
45. Starvation effect on mating behavior (1)
46. Starvation effect on mating behavior (2)
47. Starvation effect on mating behavior (3)
48. Starvation effect - competition assay (1)
49. Starvation effect - competition assay (2)
50. C. elegans mating - food conditions
51. C. elegans mating - starvation
52. Acknowledgements

Topics Covered

• A neuro-muscular circuit that mediates goal-oriented behavior
• Cholinergic regulation of motor outputs
• Genetics of CaMKII and ERG K+ channel control of behavioral states
• Integration of copulation and food signals in cell excitability
• The effect of nutrition and aging on behavioral decay

Links

Categories:

• Neuroscience
• Reproduction & Development

Talk Citation

Garcia, L.R. (2010, March 31). Cellular and molecular control of mating in male C. elegans [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved April 15, 2025, from https://doi.org/10.69645/IRKK7801.
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Publication History

• Published on March 31, 2010

Financial Disclosures

• Dr. L. Rene Garcia has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.