| Project/Area Number |
24770060
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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 |
Morphology/Structure
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| Research Institution | Toho University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 求愛行動 / アカハライモリ / 雄性ホルモン / プロラクチン / アルギニンバソトシン / 脳 / 下垂体 / 有尾両生類 / ホルモン |
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| Research Abstract |
In the breeding season, sexually developed male newt Cynops pyrrhogaster vibrates its tail in front of the female partner at an early stage of courtship behavior. This behavior is elicited by several hormonal factors such as anterior pituitary hormone prolactin (PRL) and posterior pituitary hormone arginine vasotocin (AVT), and sex steroid hormone androgen. In particular, androgen is one of the crucial factors for expression of reproductive behavior. In this study, the detailed localization of androgen receptor (AR) in the central nervous system of sexually active male newt was analyzed by immunohistochemistry technique using the specific antibody against newt AR. AR-immunopositive cells were widely distributed throughout the brain including the various regions involved in the regulation of courtship behavior. The results obtained in this study serve the information for understanding the synergistic actions of androgen and other hormonal factors.
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