Microinjection quality control in zebrafish model for genetic manipulations

Area of Science:

• Developmental Biology
• Genetics
• Molecular Biology

Background:

• Microinjection is crucial for genetic manipulation in zebrafish embryos.
• Ensuring consistent injection volume is vital for experimental reproducibility.
• Current methods lack standardized quality control for microinjection accuracy.

Purpose of the Study:

• To establish a unified delivery system for microinjected materials into one-cell stage zebrafish embryos.
• To develop a consistent injection volume quality control using mineral oil droplets.
• To ensure the reproducibility and consistency of the microinjection technique in zebrafish research.

Main Methods:

• In vitro transcribed synthetic mRNA (eGFP, m-cherry) and fluorescent dyes (fluorescein, rhodamine) were injected into single-cell zebrafish embryos.
• Mineral oil droplets were used for calibrating injected volumes.
• Microinjection parameters (needle opening, injection pressure, time) were controlled for precise delivery.

Main Results:

• Successful visualization of fluorescent proteins and dyes within zebrafish embryos.
• Demonstrated precise control over delivered material volumes.
• Established a reliable method for quality control of microinjection in zebrafish.

Conclusions:

• The developed quality control method enhances the reproducibility of microinjection in zebrafish.
• Precise volume calibration ensures consistent genetic manipulation for disease and developmental studies.
• This technique provides a standardized approach for reliable zebrafish embryo microinjection.