visual pigment
- Seeing the rainbow: mechanisms underlying spectral sensitivity in teleost fishes
Summary: The rich natural history of teleosts combined with variable aquatic habitats has produced numerous spectral tuning mechanisms. Although many of these may adaptively tune visual sensitivities, their effects on fitness remain somewhat elusive.
- A second visual rhodopsin gene, rh1-2, is expressed in zebrafish photoreceptors and found in other ray-finned fishes
Summary: An ancient duplication of the rhodopsin gene, rh1-2, is a functional visual pigment and is expressed in retinal photoreceptors.
- Spectral sensitivity of cone photoreceptors and opsin expression in two colour-divergent lineages of the lizard Ctenophorus decresii
Summary: Microspectrophotometry and opsin expression reveals four single cone classes without intraspecific differentiation, providing the first evidence of UV sensitivity in agamid lizards.