Temporal and spatial patterns of opsin gene expression in zebrafish (Danio rerio)
- Robinson, J., Schmitt, E.A., and Dowling, J.E.
- Visual neuroscience 12: 895-906 (Journal)
- Registered Authors
- Dowling, John E., Robinson, Judith, Schmitt, Ellen
- MeSH Terms
- Cell Differentiation
- Gene Expression*
- In Situ Hybridization
- Photoreceptor Cells/cytology
- Retina/growth & development
- Rod Opsins/genetics*
- Time Factors
- Zebrafish/growth & development*
- 8924413 Full text @ Vis. Neurosci.
Robinson, J., Schmitt, E.A., and Dowling, J.E. (1995) Temporal and spatial patterns of opsin gene expression in zebrafish (Danio rerio). Visual neuroscience. 12:895-906.
In zebrafish, the first class of cone photoreceptor to become morphologically distinct is the ultraviolet-sensitive short single cone, at 4 days postfertilization, whereas the last class, the red- and green-sensitive double cone, becomes distinct at 10 days postfertilization. We have examined the time course of visual pigment gene expression in zebrafish using whole-mount in situ hybridization. Within the retina, opsins may be detected as early as 40 h postfertilization with the ultraviolet and rod visual pigments being expressed before the blue- (48 h) and red- (60 h) sensitive pigments. In the pineal, red-sensitive opsin is expressed at 48 h postfertilization. Visual pigment expression provides a useful tool for investigations of early cell fate in zebrafish.
Genes / Markers
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Engineered Foreign Genes