Elucidation of evolutionary process of light adaptation in a course of loss of photosynthesis.
| Project/Area Number |
17H03723
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | National Museum of Nature and Science, Tokyo |
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Principal Investigator |
Tanifuji Goro 独立行政法人国立科学博物館, 動物研究部, 研究主幹 (70438480)
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| Co-Investigator(Kenkyū-buntansha) |
柏山 祐一郎 福井工業大学, 環境情報学部, 教授 (00611782)
神川 龍馬 京都大学, 農学研究科, 准教授 (40627634)
稲垣 祐司 筑波大学, 計算科学研究センター, 教授 (50387958)
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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| Keywords | 非光合成葉緑体 / 比較ゲノム / 光応答 / クリプト生物 / 進化 |
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| Outline of Final Research Achievements |
The genome survey for Cryptistan organisms, Cryptomonas sp., which secondarily lost the photosynthetic ability was carried out. Also the light-respond functions in C. sp were surveyed. The genome size expansion was observed in of C. sp. with comparison a photosynthetic relative despite of the loss of ability. As well as retaining chlorophyll biosynthesis proteins in the plastid genome, the photosynthesis-related genes are partially retain in the nuclear genome. And we tried to identified a substance produced as respond to light conditions in C. sp. The main publication in the project is in preparation and the multiple papers partially relating to the project have been published.
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| Academic Significance and Societal Importance of the Research Achievements |
葉緑体の機能は光合成だけではない。それはマラリア原虫や寄生性植物などが光合成を失っても非光合成葉緑体を維持していることからも明らかである。また、一見有利な形質に見える光合成が、生物にとって必ずしも良い面だけを面だけをもつとも言い切れない。本研究は従来あまり議論されてこなかった、非光合成の葉緑体に残存する従来“光合成以外の機能が想定されてこなかった”遺伝子機能に注目した。この点は独創的と言え、既知と思われている遺伝子の新たな機能探索は今後の生態学、光合成学及び育種などにも波及する可能性がある。
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Report
(5 results)
Research Products
(25 results)
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[Journal Article] Inventory and Evolution of Mitochondrion-localized Family A DNA Polymerases in Euglenozoa2020
Author(s)
Ryo Harada, Yoshihisa Hirakawa, Akinori Yabuki, Yuichiro, Kashiyama, Moe Maruyama, Onuma Ryo, Petr Soukal, Shinya Miyagishima, Vladimir Hampl, Goro Tanifuji, Yuji Inagaki
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Journal Title
Pathogens
Volume: 9
Issue: 4
Pages: 257-257
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Taming chlorophylls allowed eukaryotes to prosper on the oxygenated Earth.2019
Author(s)
Kashiyama Y, Yokoyama A, Shiratori T, Bachy C, Gutierrez-Rodriguez A, Not F, Hess S, Wang M, Chen M, Gong Y, Seto K, Kagami M, Hamamoto Y, Honda D, Umetani T, Shihongi A, Kayama M, Matsuda T, Taira J, Yabuki A, Tsuchiya M, Hirakawa Y, Kawaguchi A, Nomura M, Nakamura A, Namba N, Matsumoto M, Tanaka T, Yoshino T et al.
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Journal Title
The ISME journal
Volume: -
Issue: 8
Pages: 1-12
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] A Non-photosynthetic Diatom Reveals Early Steps of Reductive Evolution in Plastids2017
Author(s)
Kamikawa R, Moog D, Zauner S, Tanifuji G, Ishida K, Miyashita H, Mayama S, Hashimoto T, Maier UG, Archibald JM, Inagaki Y
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Journal Title
Molecular Biology and Evolution
Volume: 34
Issue: 9
Pages: 2355-2366
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Intracellular evolution through loss of photosynthesis and adaptation to a heterotrophic lifestyle revealed by the complete genome analysis of a non-photosynthetic diatom.2019
Author(s)
Kamikawa Ryoma, Nakayama Takuro, Moog Daniel, Fujiwara Takayuki, Onuma Ryo, Miyagishima Shin-Ya, Kume Keitaro, Cenci Ugo, Henrissat Bernard, Oyama Kaori, Kato Misako, Miyashita Hideaki, Tanifuji Goro, Tanizawa Yasuhiro, Mochizuki Takako, Sakamoto Mika, Nakamura Yasukazu
Organizer
The 14th International Colloquium on Endocytobiology and Symbiosis.
Related Report
Int'l Joint Research
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