| Project/Area Number |
23770078
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Animal physiology/Animal behavior
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| Research Institution | Tamagawa University (2013)
Kanazawa Institute of Technology (2011-2012) |
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Principal Investigator |
SASAKI Ken 玉川大学, 農学部, 准教授 (40387353)
|
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | ドーパミン / ハナバチ類 / カースト / 繁殖制御 / 生体アミン / 受容体 / 合成酵素 / 行動学 / 昆虫 / 進化 / 生理学 / 脳・神経 |
|---|
| Research Abstract |
To compare the regulation systems of reproduction in eusocial hymenopterans, factors regulating the brain levels of dopamine, as a candidate of gonadotoropin, were investigated. In honey bees as a highly eusocial species, dopamine promoted the ovarian development and mating flight behaviors in females and enhanced in the brain levels by food containing richly tyrosine (a precursor of dopamine), especially royal jelly. In male honey bees, on the other hand, dopamine promoted mating flight and enhanced in the brain levels and its receptor gene expression by juvenile hormone. The dopamine regulation system by juvenile hormone could be shared by both sexes in primitively eusocial species (bumble bees) and solitary species (carpenter bees).
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