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Related Experiment Videos

Gene expression profiles in Ciona intestinalis tailbud embryos.

Y Satou1, N Takatori, L Yamada

  • 1Department of Zoology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.

Development (Cambridge, England)
|September 5, 2001
PubMed
Summary

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This study identified gene expression patterns in Ciona intestinalis tailbud embryos, providing molecular markers for tissue development. The findings offer insights into the formation of primitive chordate body plans.

Area of Science:

  • Developmental Biology
  • Genomics
  • Chordate Embryology

Background:

  • The Ciona intestinalis tailbud embryo represents a primitive chordate model system.
  • Understanding gene expression is crucial for deciphering developmental processes.

Purpose of the Study:

  • To categorize expressed sequence tags from Ciona intestinalis tailbud embryos.
  • To identify novel genes and analyze their expression patterns in specific tissues.
  • To provide molecular markers for Ciona tailbud embryo tissues and organs.

Main Methods:

  • Expressed sequence tag (EST) analysis and clustering.
  • Comparison with DNA Data Bank of Japan (DDBJ) for functional annotation.
  • Whole-mount in situ hybridization for gene expression profiling.

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Main Results:

  • 1213 independent clusters were identified from 3423 ESTs.
  • 502 clusters showed significant matches to known proteins, with functions ranging from general cellular processes to gene regulation.
  • 387 clusters exhibited tissue-specific expression, including epidermis, nervous system, endoderm, mesenchyme, notochord, and muscle.

Conclusions:

  • This study provides a valuable resource of molecular markers for Ciona intestinalis tailbud embryo tissues.
  • Novel gene expression patterns were discovered, particularly in the nervous system and muscle.
  • The sequence information will facilitate further genomic studies on chordate body plan formation.