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Related Experiment Video

Updated: Mar 25, 2026

Observing Mitotic Division and Dynamics in a Live Zebrafish Embryo
10:10

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Direct visualization of replication dynamics in early zebrafish embryos.

Kenji Kuriya1, Eriko Higashiyama1, Eriko Avşar-Ban2

  • 1a Laboratory of Molecular & Cellular Biology, Department of Life Sciences , Graduate School of Bioresources, Mie University , Tsu , Japan.

Bioscience, Biotechnology, and Biochemistry
|March 1, 2016
PubMed
Summary

Researchers studied DNA replication in early zebrafish embryos using 5-ethynyl-2'-deoxyuridine (EdU) labeling. This revealed previously unknown replication dynamics during early embryonic development in zebrafish.

Keywords:
DNA replicationreplication focizebrafish embryo

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • DNA replication is crucial for cell division and embryonic development.
  • Understanding replication dynamics in early embryogenesis is key to developmental processes.

Purpose of the Study:

  • To investigate the spatial regulation and dynamics of DNA replication in early zebrafish embryos.
  • To identify novel aspects of replication timing during zebrafish development.

Main Methods:

  • Utilized 5-ethynyl-2'-deoxyuridine (EdU) to label replicating DNA in whole zebrafish embryos.
  • Employed single-cell visualization techniques to map spatial regulation of replication sites.
  • Analyzed replication dynamics in the context of early embryogenesis.

Main Results:

  • Successfully labeled and visualized replicating DNA in early zebrafish embryos.
  • Identified uncharacterized spatial patterns and dynamics of DNA replication.
  • Provided insights into the regulation of replication during rapid embryonic cell cycles.

Conclusions:

  • The study uncovered novel replication dynamics in early zebrafish embryogenesis.
  • These findings contribute to a deeper understanding of DNA replication control during development.
  • Highlights the zebrafish embryo as a model for studying replication regulation.