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Light-Induced GFP Expression in Zebrafish Embryos using the Optogenetic TAEL/C120 System
Published on: August 19, 2021
Light-controlled gene silencing in zebrafish embryos
Ilya A Shestopalov1, Surajit Sinha, James K Chen
1Department of Chemical and Systems Biology, Stanford University School of Medicine, 269 Campus Drive, CCSR 3155, Stanford, California 94305, USA.
Nature Chemical Biology
|August 25, 2007
Summary
Researchers developed a light-activated morpholino to control gene activity in zebrafish. This new tool allows for precise spatiotemporal gene regulation, enabling the creation of functionally mosaic organisms for advanced functional genomics studies.
Area of Science:
- Developmental biology
- Molecular genetics
- Zebrafish models
Background:
- Morpholinos are widely used in zebrafish for functional genomics.
- Their constitutive activity limits precise control over gene function.
- Need for spatiotemporal control in gene regulation studies.
Purpose of the Study:
- To synthesize and characterize a photoactivatable morpholino.
- To enable spatiotemporal control of gene function in vivo.
- To create functionally mosaic zebrafish organisms.
Main Methods:
- Synthesis of a caged morpholino targeting the no tail (ntl) gene.
- Application of photochemical activation for spatiotemporal control.
- Analysis of gene knockdown effects in zebrafish embryos.
Main Results:
- Successful synthesis of a photoactivatable morpholino.
- Demonstrated spatiotemporal control of ntl gene function in vivo.
- Generation of functionally mosaic zebrafish with distinct phenotypes.
Conclusions:
- Photoactivatable morpholinos offer enhanced experimental utility for zebrafish functional genomics.
- This technology allows for precise control over gene knockdown in specific tissues or at specific times.
- Enables novel experimental designs for studying gene function and developmental processes.
