A Simple and Effective Transplantation Device for Zebrafish Embryos

Area of Science:

• Developmental Biology
• Zebrafish Embryology
• Surgical Manipulation Techniques

Background:

• Classical embryological manipulations are crucial for understanding development.
• Existing tools for cell manipulation in zebrafish embryos are often expensive or difficult to use.
• Zebrafish embryos offer unique advantages for such studies due to accessibility and transparency.

Purpose of the Study:

• To present an economical, easy-to-assemble, and user-friendly device for embryological cell manipulations.
• To demonstrate the utility of this device for various applications in zebrafish.
• To assess the applicability of the device in other fish species.

Main Methods:

• Assembly of a novel transplantation device using commercially available parts.
• Detailed protocol for handling and operating the device.
• Application of the device for generating ectopic clones, extirpating cells, and performing germline transplantation.
• Testing the device on medaka embryos.

Main Results:

• The developed transplantation device is cost-effective, simple to assemble, and easy to operate.
• Successful demonstration of ectopic clone generation for studying signal dispersal.
• Effective cell extirpation to create size-reduced embryos.
• Generation of maternal-zygotic mutants via germline transplantation.
• The device is also effective for embryological manipulations in medaka.

Conclusions:

• The presented transplantation device offers a practical and affordable solution for zebrafish embryological manipulations.
• This tool expands the possibilities for studying developmental processes and generating genetic models.
• The device's versatility makes it valuable for research in zebrafish and potentially other aquatic species.