2016 Fiscal Year Final Research Report
Functional mapping of fish social brain
| Project/Area Number |
26290003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Neurophysiology / General neuroscience
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| Research Institution | Okayama University (2015-2016)
The University of Tokyo (2014) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
久保 健雄 東京大学, 理学(系)研究科(研究院), 教授 (10201469)
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| Co-Investigator(Renkei-kenkyūsha) |
KAMEI Yasuhiro 基礎生物学研究所, 生物機能解析センター, 特任准教授 (70372563)
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| Research Collaborator |
Isoe Yasuko 岡山大学, 大学院自然科学研究科, 助教(特別契約職員) (60786119)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 硬骨魚類 / 神経ペプチド / 社会行動 / ゲノム編集 / 配偶者選択 / 個体認知 |
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| Outline of Final Research Achievements |
Male medaka fish in a triad relationship (two males and one female) hold a position between the rival male and a female (mate-guarding), which results in improvement of mating success. Behavioral analysis of mutant males revealed that vasotocin system is required for dominance in mate-guarding (PLoS Genetics 2015). Our study also suggested mate-guarding behavior has an effect on visual familiarity and female mate preference. Previously we found that female medaka prefer to mate with visually-familiarized males (Science 2014). We showed that mate-guarding behaviors blocked visual familiarization of a female with the rival in a triad relationship, suggesting that female mate preference for familiar mates may help ascertain social dominance in males（Frontiers in Zoology, 2016).
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| Free Research Field |
神経科学
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