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Microinjection of Medaka Embryos for use as a Model Genetic Organism
Published on: December 22, 2010
A lens-specific co-injection marker for medaka transgenesis
Pavel Vopalensky1, Jana Ruzickova, Barbora Pavlu
1Department of Transcriptional Regulation, Institute of Molecular Genetics Prague, Czech Republic.
Biotechniques
|April 3, 2010
Summary
Researchers developed a new method for creating transgenic fish using a lens-specific reporter gene. This technique allows for easier identification and selection of genetically modified fish embryos, improving efficiency in research.
Area of Science:
- Genetics
- Developmental Biology
- Aquaculture
Background:
- Generating transgenic fish is crucial for research, but efficient embryo selection remains a challenge.
- Co-injection markers can aid in preselecting transgenic embryos for improved efficiency.
Purpose of the Study:
- To develop a lens-specific marker for efficient preselection of transgenic fish embryos.
- To utilize the mouse gamma-F crystallin (mgammaF-Cry) promoter for high-level, lens-specific reporter gene expression.
Main Methods:
- Construction of reporter vectors containing the mgammaF-Cry promoter.
- Injection of reporter vectors into fish embryos.
- Examination of reporter gene expression in the lens for preselection.
Main Results:
- The mgammaF-Cry promoter demonstrated high-level, lens-specific expression of the reporter gene.
- This facilitated easy identification and sorting of transgenic fish embryos.
Conclusions:
- A lens-specific marker driven by the mgammaF-Cry promoter is effective for preselecting transgenic fish.
- This method enhances the efficiency of generating large numbers of transgenic fish for research purposes.
