Identification of rhodopsin in the pigeon deep brain

Yasutaka Wada, Toshiyuki Okano, Akihito Adachi, Shizufumi Ebihara, Yoshitaka Fukada*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


We detected rhodopsin gene expression in the pigeon lateral septom, a photosensitive deep brain region that is responsible for the photoperiodic gonadal response. The nucleotide sequence of the deep brain rhodopsin cDNA clone exactly matched that of the retinal one, indicating that a single rhodopsin gene is transcribed in the two tissues. Immunohistochemical analysis localized rhodopsin in the cerebrospinal fluid-contacting neurons, which have been assumed to be photoreceptive cells in the deep brain. Pigeon rhodopsin seems to play dual important roles in the visual and non-visual systems, the latter of which contributes to the photoperiodic response.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalFEBS Letters
Issue number1-2
Publication statusPublished - 1998 Mar 6
Externally publishedYes


  • Cerebrospinal fluid-contacting neuron
  • Deep brain photoreceptor
  • Lateral septum
  • Photoperiodic response
  • Pigeon
  • Rhodopsin

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology


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