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Related Experiment Video

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Large-scale Zebrafish Embryonic Heart Dissection for Transcriptional Analysis
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Large-scale Zebrafish Embryonic Heart Dissection for Transcriptional Analysis

Published on: January 12, 2015

The zebrafish transcriptome during early development.

Liselotte Vesterlund1, Hong Jiao, Per Unneberg

  • 1Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden. liselotte.vesterlund@ki.se

BMC Developmental Biology
|May 26, 2011
PubMed
Summary
This summary is machine-generated.

This study used RNA-Sequencing (RNA-Seq) to analyze zebrafish gene expression during early development. Results show a significant shift in gene regulation and transcription between the 512-cell and 50% epiboly stages.

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Area of Science:

  • Developmental Biology
  • Genomics
  • Molecular Biology

Background:

  • Early embryonic development involves complex gene expression changes.
  • Transcriptional events during this transition are not fully understood.

Purpose of the Study:

  • To globally compare transcription profiles across four early zebrafish developmental stages.
  • To characterize the underlying transcriptional events during early embryogenesis.

Main Methods:

  • Utilized RNA-Sequencing (RNA-Seq) for global transcription profiling.
  • Analyzed four distinct early developmental stages of zebrafish (Danio rerio).

Main Results:

  • 11,187 unique gene transcripts were detected, with 10,096 present at the 1-cell stage.
  • Gene transcripts involved in DNA binding and protein processing showed enrichment with developmental progression.
  • The 50% epiboly stage exhibited distinct gene expression patterns compared to earlier stages.

Conclusions:

  • A majority of gene transcripts maintain steady expression levels throughout development.
  • A significant transition in gene regulation and transcriptional activity occurs between the 512-cell and 50% epiboly stages.
  • Findings align with previous research indicating a major developmental shift.