| Project/Area Number |
25292128
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aquatic life science
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| Research Institution | University of Miyazaki |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
内田 勝久 宮崎大学, 農学部, 准教授 (50360508)
小林 亨 静岡県立大学, 食品栄養科学部, 教授 (30221972)
中村 將 一般財団法人沖縄美ら島財団(総合研究センター), 総合研究センター, 参与 (10101734)
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| Co-Investigator(Renkei-kenkyūsha) |
HYOUDO SUSUMU 東京大学, 大気海洋研究所, 教授 (40222244)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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| Keywords | サメ類 / 生殖生理学 / 次世代シーケンサー / 下垂体 / 生殖線 / 卵殻腺 / 性分化 / 生殖生理 / 視床下部 / 脳下垂体 / 生殖腺 / 卵殻線 / 生殖輸管 / 配偶子形成 |
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| Outline of Final Research Achievements |
In order to preserve shark resources, we studied on the molecular endocrine mechanisms of oogenesis and spermatogenesis of sharks, using cloudy catshark as a model fish. We newly identified genes related to sexual maturation and eggshell formation, such as hypothalamus gonadotropin-releasing hormone, pituitary gonadotropins, collagen and collagen-converting enzymes of the oviducal gland. Physiological roles of some genes were clarified. Moreover, the morphological observation revealed the process of gonad sex differentiation and genes of steroid hormone metabolizing enzymes were identified.
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