A study of neural mechanism for directional control of locomotion in zebrafish
Project/Area Number |
25830020
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Neurophysiology / General neuroscience
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Research Institution | National Institute of Genetics |
Principal Investigator |
Asakawa Kazuhide 国立遺伝学研究所, 個体遺伝研究系, 助教 (30515664)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | locomotion / tactile stimulus / hindbrain / mafb / escape / MDL cell / zebrafish / ロコモーション / 逃避行動 / 後脳 / GAL4 / GCAMP / ロコーモーション / 触覚刺激 / GCaMP / カルシウムイメージング / ゼブラフィッシュ |
Outline of Final Research Achievements |
An animal moving through the environment maintains or changes its direction of progression based on internal and/or external sensory information. To understand neural mechanisms underlying directional control of locomotion, we studied the tactile-mediated escape response in zebrafish larvae as a model, in which the direction of escape changes depending upon the position of the tactile stimulus on the body surface. By using two-poton calcium imaging, we monitored the neural activity evoked by the tactile stimulus in the hindbrain mafb-positive area. From this assay, we identified a group of neurons that showed different neural activities depending upon the position of tactile stimulus, which were designated as MDL cells. Furthermore, MDL cells turned out to possess the axons extending toward the spinal cord. The spatial response property and the axonal projection toward the spinal cord raise a possibility that ML cells regulate the escape direction according to the touch position.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] RING finger protein 121 facilitates the degradation and membrane localization of voltage-gated sodium channels2015
Author(s)
Ogino, K., Low, S.E., Yamada, K., Saint-Amant, L., Zhou, W., Muto, A., Asakawa, K., Nakai, J., Kawakami, K., Kuwada, J.Y., and Hirata, H.
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Journal Title
Proc. Natl. Acad. Sci. USA
Volume: 112
Issue: 9
Pages: 2859-2864
DOI
Related Report
Peer Reviewed
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[Journal Article] Establishment of Gal4 transgenic zebrafish lines for analysis of development of cerebellar neural circuitry2015
Author(s)
Takeuchi, M., Matsuda, K., Yamaguchi, S., Asakawa, K., Miyasaka, N., Lal, P., Yoshihara, Y., Koga, A., Kawakami, K., Shimizu, T., and Hibi, M.
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Journal Title
Developmental Biology
Volume: 397
Issue: 1
Pages: 1-17
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Interhemispheric asymmetry of olfactory input-dependent neuronal specification in the adult brain2013
Author(s)
Kishimoto, N., Asakawa, K., Madelaine, R., Blader, P., Kawakami, K., and Sawamoto, K.
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Journal Title
Nature Neuroscience
Volume: 16
Issue: 7
Pages: 884-888
DOI
Related Report
Peer Reviewed
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[Journal Article] Wnt/Dkk negative feedback regulates sensory organ size in zebrafish2013
Author(s)
Wada, H., Ghysen, A., Asakawa, K., Abe, G., Ishitani, T., and Kawakami, K.
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Journal Title
Current Biology
Volume: 23
Issue: 16
Pages: 1559-1565
DOI
Related Report
Peer Reviewed
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