The mechanism of speciation at molecular level
Project/Area Number |
19770208
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Single-year Grants |
Research Field |
Evolutionary biology
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Research Institution | Tokyo Institute of Technology |
Principal Investigator |
TERAI Yohey Tokyo Institute of Technology, 大学院・生命理工学研究科, グローバルCOE教員 (30432016)
|
Project Period (FY) |
2007 – 2008
|
Project Status |
Completed (Fiscal Year 2008)
|
Budget Amount *help |
¥3,880,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥480,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
|
Keywords | 種分化 / 種形成 / 光受容体 / 婚姻色 / 生殖的隔離 / 適応 / 種多様性 |
Research Abstract |
短期間に爆発的な種分化を起こしてきたヴィクトリア湖産カワスズメ科魚類(シクリッド)を用いて、種の分化と形成のメカニズムを分子レベルで明らかにすることを試みた。その結果、光受容体の遺伝子が生息する光環境に適応し、次いで婚姻色が、適応した光受容体に感度良く吸収される光を反射する色に進化し、これらにより別種との認識が弱くなり種分化が引き起こされることを明らかにした。
|
Report
(3 results)
Research Products
(15 results)
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[Journal Article] Population structure of two closely related pelagic cichlids in Lake Victoria, Haplochromis pyrrhocephalusand H. laparogramma2009
Author(s)
Maeda K., Takeda M., Kamiya K., Aibara M., Mzighani S. I., Nishida M., Mizoiri S., Sato T., Terai Y., Okada N., Tachida H.
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Journal Title
Related Report
Peer Reviewed
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[Journal Article] Speciation through sensory drive in cichlid fish2008
Author(s)
Seehausen, O, Terai, Y., Magalhaes, I. S., Carleton, K. L., Mrosso, H. D. J., Miyagi, R., van der Sluijs, I., Schneider, M. V., Maan, M. E., Tachida, H., Imai, H. Okada, N.
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Journal Title
Nature 455
Pages: 620-626
Related Report
Peer Reviewed
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[Journal Article] Heterotypy in the N-terminal region of Growth/Differentiation Factor 5 (GDF5) mature protein during teleost evolution2008
Author(s)
Fujimura, K., Terai, Y., Ishiguro, N., Miya, M., Nishida, M., Okada, N.
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Journal Title
Mol Biol Evol. 25
Pages: 797-800
Related Report
Peer Reviewed
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[Journal Article] Population structure of two closely related pelagic cichlids in Lake Victoria, Haplochromis pyrrhocephalus and H. laparogramma2008
Author(s)
Maeda K., Takeda M., Kamiya K., Aibara M., Mzighani S. I., Nishida M., Mizoiri S., Sato T., Terai Y., Okada N., Tachida H.
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Journal Title
Related Report
Peer Reviewed
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