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Related Experiment Video

Updated: Jun 18, 2025

Sample Preparation and Analysis of RNASeq-based Gene Expression Data from Zebrafish
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Integrative mRNA and miRNA Expression Profiles from Developing Zebrafish Head Highlight Brain-Preference Genes and

Shuqiang Zhang1,2, Jian Yang2, Jie Xu2

  • 1College of Life Science, Henan Normal University, Xinxiang, 453007, Henan, China.

Molecular Neurobiology
|July 31, 2024
PubMed
Summary
This summary is machine-generated.

Zebrafish mRNA and miRNA profiles reveal key genes and networks involved in head development, offering insights into neurodevelopmental disorders. This study identifies synaptic signaling genes crucial for nervous system formation.

Keywords:
Head developmentTranscriptomeZebrafishmRNAmiRNA

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Area of Science:

  • Developmental Biology
  • Neuroscience
  • Genomics

Background:

  • MicroRNAs (miRNAs) are critical regulators of brain development.
  • Understanding transcriptional and post-transcriptional regulation in head development is vital for studying neurodevelopmental disorders.
  • Zebrafish offer advantages as a model organism for neurodevelopmental research.

Purpose of the Study:

  • To profile dynamic mRNA and miRNA expression during zebrafish head development.
  • To identify key genes and regulatory networks associated with nervous system formation.
  • To provide insights into the molecular mechanisms of neurodevelopmental disorders.

Main Methods:

  • High-throughput sequencing of mRNAs and miRNAs in developing zebrafish heads (pharyngula to early larval stages).
  • Bioinformatic analyses: differential expression, functional enrichment, and joint miRNA-mRNA analysis.
  • Comparison with public sequencing datasets and CRISPR-Cas9 gene editing for functional validation.

Main Results:

  • Identified numerous differentially expressed genes during head development, with late-stage genes linked to synaptic signaling.
  • Found significant enrichment of brain-preference and synapse-associated genes in the head transcriptome.
  • Constructed miRNA-mRNA networks, highlighting densely connected components, and validated snap25b mutant phenotypes.

Conclusions:

  • Generated comprehensive developmental profiles of head-enriched mRNAs and miRNAs during critical nervous system development windows.
  • The findings contribute to understanding the molecular basis of neurodevelopmental disorders.
  • The study provides a valuable resource for future research on brain development and related disorders.