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Related Experiment Video

Updated: Oct 12, 2025

Functional Manipulation of Maternal Gene Products Using In Vitro Oocyte Maturation in Zebrafish
10:39

Functional Manipulation of Maternal Gene Products Using In Vitro Oocyte Maturation in Zebrafish

Published on: April 22, 2017

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Microinjection Method for Analyzing Zebrafish Early Stage Oocytes.

Manami Kobayashi1, Allison Jamieson-Lucy1, Mary C Mullins1

  • 1Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States.

Frontiers in Cell and Developmental Biology
|November 25, 2021
PubMed
Summary

Researchers developed a new microinjection technique to study early oocyte development in zebrafish. This method allows for mRNA injection and protein localization analysis in live oocytes, aiding gene function studies in oogenesis.

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Area of Science:

  • Developmental Biology
  • Cell Biology
  • Genetics

Background:

  • Maternal factors are crucial for establishing oocyte polarity, impacting embryonic development and germ cell formation.
  • Early oogenesis in vertebrates remains poorly understood due to challenges in accessing oocytes and limited analytical techniques.

Purpose of the Study:

  • To develop and validate a microinjection method for analyzing early-stage zebrafish oocytes.
  • To enable functional analysis of genes involved in oogenesis.

Main Methods:

  • Microinjection of mRNAs encoding fluorescent-tagged proteins into early-stage zebrafish oocytes.
  • Observation of subcellular localization of tagged proteins in live oocytes.
  • Identification of potential artifacts associated with oocyte injection and analysis.
Keywords:
balbiani bodybucky ballmicroinjectionoocytesoogenesiszebrafish

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Last Updated: Oct 12, 2025

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Main Results:

  • Successful microinjection of mRNAs into early-stage oocytes.
  • Demonstration of observing subcellular localization of fluorescent-tagged proteins in live oocytes.
  • Characterization of artifacts to be aware of during analysis.

Conclusions:

  • The developed microinjection method provides a viable approach for studying early oogenesis in zebrafish.
  • This technique is expected to significantly advance the functional analysis of genes critical for oogenesis and embryonic development.