GFAP transgenic zebrafish

Gene Expr Patterns. 2006 Oct;6(8):1007-13. doi: 10.1016/j.modgep.2006.04.006. Epub 2006 Jun 9.


We have generated transgenic zebrafish that express green fluorescent protein (GFP) in glial cells driven by the zebrafish glial fibrillary acidic protein (GFAP) regulatory elements. Transgenic lines Tg(gfap:GFP) were generated from three founders; the results presented here are from the mi2001 line. GFP expression was first visible in the living embryo at the tail bud-stage, then in the developing brain by the 5-somite-stage ( approximately 12 h post-fertilization, hpf) and then spreading posteriorly along the developing spinal cord by the 12-somite stage (approximately 15 hpf). At 24 hpf GFP-expressing cells were in the retina and lens. By 72 hpf GFP expression levels were strong and localized to the glia of the brain, neural retina, spinal cord, and ventral spinal nerves, with moderate expression in the enteric nervous system and weaker levels in the olfactory sensory placode and otic capsule. GFP expression in glia co-localized with anti-GFAP antibodies, but did not co-localize with the neuronal antibodies HuC/D or calretinin in mature neurons.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Animals, Genetically Modified* / embryology
  • Animals, Genetically Modified* / metabolism
  • Central Nervous System / embryology
  • Central Nervous System / metabolism
  • Embryo, Nonmammalian
  • Gene Expression
  • Glial Fibrillary Acidic Protein / genetics*
  • Green Fluorescent Proteins / metabolism
  • Neuroglia / metabolism
  • Tissue Distribution
  • Transgenes
  • Zebrafish / embryology
  • Zebrafish / genetics*
  • Zebrafish Proteins / genetics


  • Glial Fibrillary Acidic Protein
  • Zebrafish Proteins
  • Green Fluorescent Proteins