Circadian expression of clock gene in the optic tectum of Japanese quail

Shinobu Yasuo, Shizufumi Ebihara, Takashi Yoshimura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The physiological activity of avian optic tectum (TeO) is known to be regulated by the circadian system. In a previous study, we found clock gene expression in the TeO of Japanese quail. Here we report rhythmic expression of the Per2 gene in the stratum griseum et fibrosum (SGF) of the TeO under a light-dark (LD) cycle, constant darkness (DD), and constant light (LL) conditions. However, light pulse did not affect Per2 expression in the TeO. These results suggest that light stimulus and melatonin rhythm are not essential for rhythmic expression of Per2 in the avian TeO in spite of the localization of melatonin receptors and retinal input.

Original languageEnglish
Pages (from-to)193-196
Number of pages4
JournalBrain Research
Volume1005
Issue number1-2
DOIs
Publication statusPublished - Apr 16 2004
Externally publishedYes

Fingerprint

Coturnix
Circadian Clocks
Superior Colliculi
Gene Expression
Light
Melatonin Receptors
Darkness
Photoperiod
Melatonin

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Molecular Biology
  • Developmental Biology
  • Clinical Neurology

Cite this

Circadian expression of clock gene in the optic tectum of Japanese quail. / Yasuo, Shinobu; Ebihara, Shizufumi; Yoshimura, Takashi.

In: Brain Research, Vol. 1005, No. 1-2, 16.04.2004, p. 193-196.

Research output: Contribution to journalArticle

Yasuo, Shinobu ; Ebihara, Shizufumi ; Yoshimura, Takashi. / Circadian expression of clock gene in the optic tectum of Japanese quail. In: Brain Research. 2004 ; Vol. 1005, No. 1-2. pp. 193-196.
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