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Related Experiment Videos

The expression of AmphiMdp during amphioxus early development.

Yushuang Lin1, Kailong Liang, Yanjun Zhang

  • 1Life Science College, Institute of Developmental Biology, Shanda Nan Lu No. 27, Shandong University, Jinan 250100, China.

Gene Expression Patterns : GEP
|November 30, 2004
PubMed
Summary

Amphioxus MyoD (AmphiMdp) gene expression was tracked in developing embryos and larvae. This suggests AmphiMdp plays a crucial role in muscle development (myogenesis) in amphioxus.

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Chordate Embryology

Background:

  • Understanding gene expression patterns is crucial for deciphering developmental processes.
  • Myogenesis, the formation of muscle tissue, is a fundamental aspect of embryonic development across many species.

Purpose of the Study:

  • To investigate the expression patterns of the AmphiMdp gene during amphioxus embryogenesis and larval development.
  • To elucidate the potential role of AmphiMdp in the myogenesis of amphioxus.

Main Methods:

  • Whole-mount in situ hybridization was used to detect AmphiMdp transcripts.
  • Expression analysis was performed at various developmental stages, including mid-gastrula, early neurula, and larval stages (48-h and 72-h).

Main Results:

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  • AmphiMdp transcripts were initially observed in the mesendoderm during the mid-gastrula stage.
  • Expression was subsequently detected in the somites from the early neurula through early larval stages, with a posterior to anterior disappearance.
  • By the 48-h larval stage, transcripts were found in the developing tail bud, and absent from somites by 72-h.

Conclusions:

  • The dynamic expression pattern of AmphiMdp suggests its involvement in the differentiation and development of muscle tissues in amphioxus.
  • AmphiMdp is a key gene potentially regulating myogenesis in this basal chordate model.