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複眼進化研究の新機軸:視細胞のdeep homology
https://ir.soken.ac.jp/records/5741
https://ir.soken.ac.jp/records/57416ac168a2-4a84-4941-89e6-afcf7bc32abe
名前 / ファイル | ライセンス | アクション |
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Item type | 科研費報告書 / Reports of Grants-in-Aid for Scientidic Research(1) | |||||
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公開日 | 2018-05-28 | |||||
タイトル | ||||||
タイトル | 複眼進化研究の新機軸:視細胞のdeep homology | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | New direction of evolutionary study of compound eyes: deep homology of photoreceptors | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 複眼 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 視細胞 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 進化 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 発生 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ショウジョウバエ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | チョウ類 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 調節因子 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 国際研究者交流 | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
著者 |
蟻川, 謙太郎
× 蟻川, 謙太郎 |
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著者名(英) |
HARIKAWA, Kentaro
× HARIKAWA, Kentaro |
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科研費研究者番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 20167232 | https://nrid.nii.ac.jp/ja/nrid/1000020167232/ | |||||
研究分野 | ||||||
動物生理・行動 | ||||||
研究種目 | ||||||
挑戦的萌芽研究 | ||||||
研究期間 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 2014~2016 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 研究成果の概要(和文):多くの昆虫複眼は2タイプの個眼を含むが、チョウではこれが3タイプである。これは訪花性への適応なのか?この疑問に答えるため、複眼の形成過程をチョウとハエで比較した。ハエでは、全個眼で調節因子Prospero(Pros)がR7細胞に発現する。Prosはチョウでは個眼当り2細胞に発現していた。チョウではR7が重複したらしい。ハエの個眼多様性は、R7にSpineless(Ss)が発現するか否かで決まる。チョウ個眼ではSs陽性細胞数が2か1か0で、3タイプの個眼に対応すると考えられた。実際ssの機能を止めると、全個眼に紫外受容細胞が2個できた。複眼の分光学的多様性は視細胞数の増加と関係あるようだ。 研究成果の概要(英文):Compound eyes of many insects consists of two spectrally-heterogeneous ommatidia. The number is butterflies and bees, making their eyes spectrally richer. Is this an adaptation for having better color vision in flower-visitors? We addressed this question by comparing the eye development in flies and butterflies. A transcription factor Prospero (Pros) is expressed in a short-wavelength receptor, R7, in all commatidia in flies. We found Pros is expressed in two cells per an ommatidium in butterflies : R7 seems to be duplicated. Ommatidial heterogeneity is detected in flies by stochastic expression of Spineless (Ss) in R7. In butterflies, two R7-like cells express Ss in three patterns, on/off, on/on and off/off, as if they correspond to three ommatidial types. In fact, butterflies whose ss gene is knockes-out have the UV-UV type commatidia. It thus appears that the spectral richness of butterfly eyes is associated with duplication of R7-like cell in the process of adaptation. |
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内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 科学研究費補助金研究成果報告書 研究代表者:蟻川謙太郎[総合研究大学院大学先導科学研究科教授] |
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発行日 | ||||||
日付 | 2017-04-10 | |||||
日付タイプ | Created | |||||
研究課題番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 26650117 | |||||
報告年度 | ||||||
2016 | ||||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/search/?kw=%E8%A4%87%E7%9C%BC%E9%80%B2%E5%8C%96%E7%A0%94%E7%A9%B6%E3%81%AE%E6%96%B0%E6%A9%9F%E8%BB%B8 | |||||
関連名称 | KAKEN(科学研究費補助金データーベース) | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf |