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Related Experiment Videos

Cloning and expression analysis of zebrafish tob1 gene.

Kehui Shi1, Lixia Zhang, Anming Meng

  • 1Laboratory of Developmental Biology, State Key Laboratory of Biomembrane and Membrane Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, 100084, Beijing, China.

Development Genes and Evolution
|April 21, 2004
PubMed
Summary

Researchers identified the zebrafish tob1 gene, crucial for early embryonic development. Its expression is vital in specific tissues like the notochord and somites, suggesting a role in vertebrate cell proliferation control.

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • The Btg/Tob protein family is known for anti-proliferation activity, but their precise physiological roles remain largely unknown.
  • Understanding the functions of Btg/Tob family members is crucial for comprehending cell growth regulation.

Purpose of the Study:

  • To identify and characterize the zebrafish tob1 gene and its expression pattern during early embryogenesis.
  • To investigate the potential role of Tob1 in controlling cell proliferation in vertebrates.

Main Methods:

  • Reverse Transcription Polymerase Chain Reaction (RT-PCR) was used to analyze tob1 gene expression.
  • Whole-mount in situ hybridization was employed to visualize the spatial and temporal expression of tob1 during zebrafish development.

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Main Results:

  • A zebrafish tob1 gene encoding a 322-amino acid peptide was identified.
  • Maternal tob1 transcripts were abundant in early developmental stages (fertilized eggs and blastulas).
  • Tob1 expression was detected in the notochord and somites during midgastrulation and early segmentation, and later in the pectoral fin bud on day 2.

Conclusions:

  • Zebrafish tob1 exhibits dynamic expression patterns during embryogenesis, localized to key developing structures.
  • The expression profile suggests Tob1 may play a significant role in regulating cell proliferation during vertebrate development.