2012 Fiscal Year Final Research Report
Development of techniques for seed production using new brain factors related to reproduction
| Project/Area Number |
22580204
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
General fisheries
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| Research Institution | University of Miyazaki |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
UCHIDA Katsuhisa 宮崎大学, 農学部, 准教授 (50360508)
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| Project Period (FY) |
2010 – 2012
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| Keywords | ウナギ / ハタ科魚類 / 人為催熟 / 種苗生産 / キスペプチン / キスペプチン受容体 |
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| Research Abstract |
To develop new techniques for induction of sexual maturation using brain neuroendocrine factors related to reproduction, we newly isolated genes of kisspeptin and their receptors (GPR54) from brains of eels and honeycomb groupers and demonstrated that these genes play critical roles on the sexual maturation in the eel and the sex change in the grouper. Moreover, treatments of gonadotropin-releasing hormone analogue or of long photoperiod with high water temperature to sexually immature female grouper induced sexual maturation at period of non-breeding season.
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