Search of puberty related factors in pineal, brain, and pituitary gland of fish
Project/Area Number |
26660173
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Aquatic life science
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Research Institution | Nagasaki University |
Principal Investigator |
SOYANO Kiyoshi 長崎大学, 海洋未来イノベーション機構, 教授 (80260735)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | 春機発動 / 初回成熟 / 生殖腺発達 / 脳下垂体 / 成熟関連ホルモン / 年齢 / 成長 / 脳 |
Outline of Final Research Achievements |
To elucidate the physiological and endocrinological mechanisms of puberty (first maturation after hatching) in fish, gene expression of kisspeptin in brain and immunohisto-chemistry of gonadotropins protein expression in the pituitary gland were conducted using the red spotted grouper, the kelp grouper, and the honeycomb grouper. In addition, growth analysis and age determination were done to obtained the information on relationships between these factors and first maturation. As a result, the sequence of the kisspeptin gene in the brain was obtained. It was also found that expression of gonadotropins in immature fish varied depending on fish species. In addition, the role of two factors (age and growth) on first maturation is different in each species of grouper.
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Report
(4 results)
Research Products
(14 results)
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[Presentation] 親魚養成と受精卵確保2014
Author(s)
征矢野 清
Organizer
日本水産増殖学会シンポジウム
Place of Presentation
広島大学大学院生物圏科学研究科(広島県東広島市)
Year and Date
2014-10-19
Related Report
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