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Zebrafish Gastrulation.

Miguel L Concha¹

¹Laboratory of Experimental Ontogeny, Institute of Biomedical Sciences and Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile;

Annual Review of Cell and Developmental Biology

|August 18, 2025

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Zebrafish gastrulation establishes vertebrate body plans through conserved molecular and cellular processes. Unique embryonic features illuminate gene expression, mechanical forces, and self-organization in early development.

Area of Science:

Developmental Biology
Embryogenesis
Comparative Vertebrate Anatomy

Background:

Vertebrate body plan formation originates during gastrulation.
Gastrulation involves the establishment of three germ layers and embryonic axes.
Zebrafish gastrulation shares conserved mechanisms with other vertebrates.

Purpose of the Study:

To summarize key molecular and cellular mechanisms in zebrafish gastrulation.
To highlight conserved and species-specific features of vertebrate development.
To explore how zebrafish embryos aid in understanding early embryonic morphogenesis.

Main Methods:

Review of genetic networks and signaling pathways.
Analysis of cell dynamics and morphogenetic movements.

Keywords:

gastrulation genetics mechanics morphogenesis self-organization signaling zebrafish

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Investigation of zebrafish-specific developmental features.

Main Results:

Zebrafish gastrulation involves conserved vertebrate developmental processes.
Maternally deposited determinants and extraembryonic structures influence zebrafish development.
Early cell mesenchymal nature and mesendoderm internalization are key features.
Coordination of gene expression, mechanical forces, and self-organization shapes the embryo.

Conclusions:

Zebrafish serve as a valuable model for studying fundamental principles of vertebrate morphogenesis.
Understanding zebrafish gastrulation provides insights into broader vertebrate developmental biology.
Advances illuminate the intricate interplay of factors driving early embryonic development.