TY - JOUR
T1 - Circadian expression of clock gene in the optic tectum of Japanese quail
AU - Yasuo, Shinobu
AU - Ebihara, Shizufumi
AU - Yoshimura, Takashi
N1 - Funding Information:
We thank Nagoya University Radioisotope Center for the use of facilities. This work was supported by the Program for Promotion of Basic Research Activities for Innovative Biosciences (PROBRAIN), and Grant-in-Aid for Young Scientist from the Ministry of Education, Culture, Sports, Science and Technology to T.Y.
PY - 2004/4/16
Y1 - 2004/4/16
N2 - 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.
AB - 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.
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U2 - 10.1016/j.brainres.2004.01.031
DO - 10.1016/j.brainres.2004.01.031
M3 - Article
C2 - 15044078
AN - SCOPUS:1642395685
VL - 1005
SP - 193
EP - 196
JO - Molecular Brain Research
JF - Molecular Brain Research
SN - 0006-8993
IS - 1-2
ER -