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Visualizing Ocular Morphogenesis by Lightsheet Microscopy Using rx3:GFP Transgenic Zebrafish

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Visualizing retinoic acid morphogen gradients.

T F Schilling¹, J Sosnik¹, Q Nie¹

¹University of California, Irvine, CA, United States.

Methods in Cell Biology

|June 7, 2016

Summary

This summary is machine-generated.

This study explores retinoic acid (RA) morphogen gradients in zebrafish embryos. We highlight tools and methods for understanding RA gradient dynamics and regulation during development.

Keywords:

Diffusion FRET Morphogen Retinoic acid Rhombomere Zebrafish

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Area of Science:

Developmental Biology
Molecular Biology
Genetics

Background:

Morphogens are signaling molecules forming concentration gradients to specify cell fates.
Key morphogens like retinoic acid (RA) are crucial for embryonic development, but their precise distribution and propagation mechanisms remain incompletely understood.
Zebrafish offer powerful genetic and imaging tools for studying morphogen gradients during early embryogenesis.

Purpose of the Study:

To review available tools in zebrafish for studying the dynamic regulation of retinoic acid (RA) morphogen gradients.
To discuss the utility of these tools in elucidating RA gradient mechanisms in vivo.
To emphasize the integration of experimental and computational approaches for a comprehensive understanding.

Main Methods:

Utilizing zebrafish as a model organism for in vivo studies.
Employing fluorescent reporters for RA response elements (RAREs).
Implementing Fluorescence Resonance Energy Transfer (FRET) reporters to monitor receptor binding dynamics.

Main Results:

Evidence for RA gradients and their regulatory mechanisms in zebrafish embryos.
Demonstration of noise attenuation and gradient robustness in vivo.
Identification of tools for dynamic analysis of RA morphogen gradients.

Conclusions:

Zebrafish provide a powerful system for dissecting RA morphogen gradient dynamics.
Combined experimental and computational approaches are essential for understanding gradient regulation.
Further research using these tools will advance our knowledge of developmental signaling.