Sexual plasticity of fish gonad
| Project/Area Number |
20580214
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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 | Teikyo University of Science & Technology |
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Principal Investigator |
HIRAI Toshiaki 帝京科学大学, 生命環境学部, 准教授 (30238331)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | 生殖腺 / 性分化 / 可塑性 / 水産学 / 発生・分化 / 性転換 / コイ / 内分泌 |
|---|
| Research Abstract |
Sexual plasticity of fish gonad was addressed by morphologial and molecular biological approaches. In mauring ovary of common carp, special regions retain a potential to be differentiated into testicular tissue. Gonadal soma derived growth factor(GSDF) is expressed in the regions, suggesting its involvement in the sexual plasticity. This growth factor is shown to exert a crucial role in the protogynous sex change(from ovary to testis) in wrasse. Meanwhile, estrogen administration to genetic male of common carp showed that sexual plasticity regressed as testicular tissue architecture was formed.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article]2011
Author(s)
Kitano, H., Irie, S., Ohta, K., Hirai, T., Yamaguchi, A. and Matsuyama, M.
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Journal Title
Gen. Comp. Endocr
Volume: 172
Pages: 268-276
Related Report
Peer Reviewed
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[Journal Article]2010
Author(s)
Hayashi, Y., Kobira, H., Yamaguchi, T., Shiraishi, E., Yazawa, T., Hirai, T., Kamei, Y. and Kitano, T.
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Journal Title
Mol. Reprod. Dev
Volume: 77
Pages: 679-686
Related Report
Peer Reviewed
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[Journal Article]2010
Author(s)
Alam, M. A., Kobayashi, Y., Hirai, T. and Nakamura, M.
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Journal Title
Comp. Biochem. Physiol. A
Volume: 156
Pages: 364-371
Related Report
Peer Reviewed
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[Journal Article]2009
Author(s)
Mittelholzer, C., Andersson, E., Consten, D., Taranger, G. L., Hirai, T., Senthilkumaran, B., Nagahama, Y. and Norberg, B.
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Journal Title
Gen. Comp. Endocrinol
Volume: 160
Pages: 47-58
Related Report
Peer Reviewed
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[Journal Article]2008
Author(s)
Alam, M. A., Kobayashi, Y., Horiguchi, R., Hirai, T. and Nakamura, M.
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Journal Title
Gen. Comp. Endocrinol
Volume: 157
Pages: 75-85
Related Report
Peer Reviewed
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[Journal Article]2008
Author(s)
Ogawa, S., Akiyoshi, M., Higuchi, M., Nakamura, M. and Hirai, T.
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Journal Title
CYBIUM International Journal of Ichthyology
Volume: 32
Pages: 102-103
Related Report
Peer Reviewed
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