Molecular cloning and daily variations of the Period gene in a reef fish Siganus guttatus
Abstract As the first step in understanding the molecular oscillation of the circa rhythms in the golden rabbitfish Siganus guttatus—a reef fish with a definite lunar-related rhythmicity—we cloned and sequenced a Period gene (rfPer). The rfPer gene contained an open reading frame that encodes a protein consisting of 1,452 amino acids; this protein is highly homologous to PER proteins of vertebrates including zebrafish. Phylogenetic analyses indicated that the rfPER protein is related to the zebrafish PER1 and PER4. The expression of rfPer mRNA in the whole brain, retina, and liver under light/dark (LD) conditions increased at 06:00 h and decreased at 18:00 h, suggesting that its robust circadian rhythm occurs in neural and peripheral tissues. When daily variation in the expression in rfPer mRNA in the whole brain and cultured pineal gland were examined under LD conditions, similar expression patterns of the gene were observed with an increase around dawn. Under constant light condition, the increased expression of rfPer mRNA in the whole brain disappeared around dawn. The present results demonstrate that rfPer is related to zPer4 and possibly zPer1. The present study is the first report on the Period gene from a marine fish..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2006 |
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| Erschienen: |
2006 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:193 |
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| Enthalten in: |
Journal of comparative physiology / A - 193(2006), 4 vom: 25. Nov., Seite 403-411 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Park, Ji-Gweon [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Anmerkungen: |
© Springer-Verlag 2006 |
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| doi: |
10.1007/s00359-006-0194-6 |
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OLC2045082741 |
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| 245 | 1 | 0 | |a Molecular cloning and daily variations of the Period gene in a reef fish Siganus guttatus |
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| 520 | |a Abstract As the first step in understanding the molecular oscillation of the circa rhythms in the golden rabbitfish Siganus guttatus—a reef fish with a definite lunar-related rhythmicity—we cloned and sequenced a Period gene (rfPer). The rfPer gene contained an open reading frame that encodes a protein consisting of 1,452 amino acids; this protein is highly homologous to PER proteins of vertebrates including zebrafish. Phylogenetic analyses indicated that the rfPER protein is related to the zebrafish PER1 and PER4. The expression of rfPer mRNA in the whole brain, retina, and liver under light/dark (LD) conditions increased at 06:00 h and decreased at 18:00 h, suggesting that its robust circadian rhythm occurs in neural and peripheral tissues. When daily variation in the expression in rfPer mRNA in the whole brain and cultured pineal gland were examined under LD conditions, similar expression patterns of the gene were observed with an increase around dawn. Under constant light condition, the increased expression of rfPer mRNA in the whole brain disappeared around dawn. The present results demonstrate that rfPer is related to zPer4 and possibly zPer1. The present study is the first report on the Period gene from a marine fish. | ||
| 650 | 4 | |a Circadian rhythm | |
| 650 | 4 | |a Cloning | |
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| 700 | 1 | |a Kim, Se-Jae |4 aut | |
| 700 | 1 | |a Takemura, Akihiro |4 aut | |
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