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Expression analysis of Rab11 during zebrafish embryonic development.

Haijun Zhang1, Yu Gao1, Peipei Qian1

  • 1Co-innovation Center of Neuroregeneration, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19# Qixiu Road, Nantong, 226001, China.

BMC Developmental Biology
|December 31, 2019
PubMed
Summary

Three rab11 genes in zebrafish show distinct expression patterns, particularly in the central nervous system, suggesting unique roles in embryonic development. This research provides insight into rab11 gene function during zebrafish development.

Keywords:
ExpressionZebrafishrab11

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Rab proteins are GTPases crucial for intracellular vesicular trafficking.
  • Rab11 proteins regulate vesicular recycling during embryonic development.
  • Zebrafish possess three highly similar rab11 paralogues: rab11a, rab11ba, and rab11bb.

Purpose of the Study:

  • To analyze the expression patterns of the three zebrafish rab11 paralogues.
  • To investigate the distinct roles of rab11 genes in zebrafish embryonic development.

Main Methods:

  • Phylogeny analysis to assess gene conservation.
  • Reverse transcription-polymerase chain reaction (RT-PCR) for gene expression.
  • In situ hybridization to determine spatial expression patterns.

Main Results:

  • All three rab11 genes are highly conserved, especially in GTPase domains.
  • rab11a, rab11ba, and rab11bb are enriched in the central nervous system, with distinct brain region localization.
  • Specific expression patterns were observed in various tissues including muscle, kidney, fin, spinal cord, and embryonic structures; rab11bb shows delayed maternal expression.

Conclusions:

  • Zebrafish rab11 genes play significant and differentiated roles in nervous system development.
  • Findings contribute to understanding rab11 functions in zebrafish embryogenesis.