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Related Experiment Videos

Multiple upstream modules regulate zebrafish myf5 expression.

Yau-Hung Chen1, Yun-Hsin Wang, Min-Yen Chang

  • 1Graduate Institute of Life Sciences, Tamkang University, Tamsui, Taiwan. yauhung@mail.tku.edu.tw <yauhung@mail.tku.edu.tw>

BMC Developmental Biology
|January 4, 2007
PubMed
Summary
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Researchers identified regulatory elements controlling Myf5 gene expression in zebrafish. This study reveals how multiple DNA regions orchestrate Myf5

Area of Science:

  • Developmental Biology
  • Genetics
  • Molecular Biology

Background:

  • Myf5 is a crucial transcription factor for muscle cell development.
  • Its spatiotemporal expression during embryogenesis is complex and not fully understood.

Purpose of the Study:

  • To elucidate the regulatory mechanisms governing zebrafish myf5 expression.
  • To identify cis-regulatory elements responsible for its dynamic pattern.

Main Methods:

  • Generated transgenic zebrafish with a bacterial artificial chromosome containing zebrafish myf5 and a GFP reporter.
  • Created various deletion constructs within the upstream regulatory region to map functional elements.

Main Results:

  • GFP expression mirrored endogenous myf5 in somites, presomitic mesoderm, and differentiated muscles.

Related Experiment Videos

  • Identified distinct cis-elements regulating fin/cranial muscle, bone, spinal cord, eye, notochord, and myocyte expression.
  • Mapped a basal transcription element in the proximal upstream region (-290/-1).

    • Conclusions:

    • Zebrafish myf5 expression is controlled by multiple regulatory modules in its distal upstream region.
    • This provides insights into the molecular control of myf5 and myogenesis.