| Project/Area Number |
21770076
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Animal physiology/Animal behavior
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
NIKAIDO Masato Tokyo Institute of Technology, 大学院・生命理工学研究科, 助教 (70432010)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | シクリッド / V1R受容体 / 進化 / 正の淘汰 / 多型維持 / 嗅覚 / V2R / V1R2 / フェロモン / V1R2受容体 |
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| Research Abstract |
I found a long standing polymorphism on protein encoding gene of haplochromines that may, in general, contribute to faster and dynamic diversification. In V1R2 receptor gene, two highly divergent allele groups, which were estimated to have diverged about 9 MYBP under the force of positive selection, are observed as polymorphism in Lake Victoria cichlids. In addition to V1R2 gene, functionally distinct polymorphisms on ecologically important genes and QTLs were likely to be existed in ancestral populations. Lineage sorting of such polymorphisms may have enabled the extremely rapid radiations and parallel evolutions of haplochromines.
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