Phylogeny and expression of canonical transient receptor potential (TRPC) genes in developing zebrafish

von Niederhäusern, V., Kastenhuber, E., Stäuble, A., Gesemann, M., and Neuhauss, S.C.
Developmental dynamics : an official publication of the American Association of Anatomists   242(12): 1427-41 (Journal)
Registered Authors
Gesemann, Matthias, Kastenhuber, Edda, Neuhauss, Stephan
Danio rerio, TRPC ion channel, nervous system, sensory system
MeSH Terms
  • Amino Acid Sequence
  • Animals
  • Cloning, Molecular
  • Computational Biology
  • DNA Primers/genetics
  • Gene Expression Profiling
  • Gene Expression Regulation, Developmental/genetics*
  • Gene Expression Regulation, Developmental/physiology
  • In Situ Hybridization
  • Likelihood Functions
  • Models, Genetic
  • Molecular Sequence Data
  • Multigene Family/genetics*
  • Nervous System/metabolism
  • Phylogeny*
  • Protein Isoforms/metabolism
  • Smell/genetics
  • TRPC Cation Channels/genetics*
  • TRPC Cation Channels/metabolism*
  • Zebrafish/embryology*
  • Zebrafish/genetics*
  • Zebrafish/metabolism
24038627 Full text @ Dev. Dyn.

Background: Canonical transient receptor potential (TRPC) channels are nonselective, calcium-permeable cation channels that are expressed in a great variety of organisms, tissues and cell types. TRPC channels are known to be involved in the transduction of polymodal sensory input. Additionally, they are implicated in a variety of developmental processes. Distinct gating mechanisms have been elucidated so far, but their exact functional role in vertebrate organisms still needs to be resolved.

Results: We now used the teleost Danio rerio to perform a comprehensive expression analysis of the trpc gene subfamily. Based on the sequence homology to the seven described mammalian TRPC channels, we identified 12 trpc genes in the zebrafish genome. All but trpc1 and trpc3 are represented by two paralogs. We further describe the specific expression patterns of trpc transcripts in whole mounts during the first five days of development.

Conclusions: Consistent with their proposed role in sensory transduction zebrafish trpcs are predominantly expressed in neural structures such as the olfactory, visual, mechanosensitive, and motor systems. Intriguingly, zebrafish paralogs show mainly non-overlapping expression patterns, suggesting that duplicated genes have either split their functions or have adapted new ones.

Genes / Markers
Figure Gallery
Mutation and Transgenics
Human Disease / Model Data
Sequence Targeting Reagents
Engineered Foreign Genes
Errata and Notes