| Project/Area Number |
26290003
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Partial Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Neurophysiology / General neuroscience
|
|---|
| Research Institution | Okayama University (2015-2016)
The University of Tokyo (2014) |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
久保 健雄 東京大学, 理学(系)研究科(研究院), 教授 (10201469)
横井 佐織 北海道大学, 薬学研究科(研究院), 助教 (10772048)
|
|---|
| 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)
|
|---|
| 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)
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2016: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
|
|---|
| 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 / オキシトシン / 神経科学 / 脳・神経 / 遺伝子 / 行動発達 / 脳機能地図 / 行動学 / 生態学 / 社会性行動 / メダカ / ホルモン / バソトシン / 社会脳 / 小型魚類 / 条件的遺伝子操作法 / IR-LEGO |
|---|
| 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).
|
