2022 Fiscal Year Final Research Report
Morphological and functional analysis of pretectal neural circuit by labeling and single cell RNA-sequencing of visually responsive cells
Project/Area Number |
20K15906
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 46010:Neuroscience-general-related
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Research Institution | National Institute of Genetics |
Principal Investigator |
Matsuda Koji 国立遺伝学研究所, 遺伝形質研究系, 特任研究員 (40845228)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | ゼブラフィッシュ / 前視蓋神経回路 / 刺激特異的細胞標識 / 1細胞RNA-seq / 形態・機能解析 |
Outline of Final Research Achievements |
Animals adjust their posture, position and stabilize the direction of gaze by optic flow, which is the movement of the entire field of view produced by self-motion. The processing of optic flow involves a brain region called the pretectum, where various types of flow type-selective neurons are intermingled. However, its underlying circuit mechanisms are still unclear due to the lack of genetic tools that distinguish and label each type of pretectal neurons. In this study, we developed a technique that combines functional labeling using CaMPARI2 and single cell RNA-seq and have successfully identified marker genes for the optic flow-responsive pretectal cells.
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Free Research Field |
神経科学
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Academic Significance and Societal Importance of the Research Achievements |
外界から受容した感覚情報を元に、状況に応じた適切な行動が生み出されるメカニズムを理解することは、神経科学において重要な課題である。本研究は、オプティックフロー視覚情報処理を担う神経細胞群を遺伝学的に標識することによって、その神経回路メカニズムの解明に貢献した。さらに、本研究によって開発した技術は、視覚以外の様々な異なる感覚系の研究にも広く応用可能であると期待される。従って、視覚以外の感覚情報処理、さらには異なる感覚間の情報統合に関する脳内メカニズムの解明にも貢献する可能性がある。
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