Early steps prerequisite for evolution from aerobic eukaryotes to anaerobes
Project/Area Number |
15K14591
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Biodiversity/Systematics
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Research Institution | Kyoto University |
Principal Investigator |
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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Keywords | ミトコンドリア / 嫌気 / 原生生物 / 酸素 / 進化 / トランスクリプトーム / ミトコンドリアゲノム |
Outline of Final Research Achievements |
This study aimed to unveil early stages of adaptive evolution of eukaryotes to anaerobiosis, using a eukaryote that is capable of thriving in both aerobic and anaerobic conditions. Mitochondria-targeting proteins were identified by transcriptome analyses followed by localization studies. Comparative transcriptome analyses revealed that mitochondrial energy producing pathways are drastically different between aerobic and anaerobic conditions. Molecular phylogenetic analyses suggested those genes encoding the mitochondrial anaerobic energy production had been acquired by lateral transfers. On the basis of findings in this study, important steps for early stages of evolutionary adaptation to anaerobiosis in eukaryotes were suggested to be acquisition of genes for mitochondrial anaerobic energy production and transcriptional regulation of those genes in different oxygen concentrations.
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Report
(4 results)
Research Products
(49 results)
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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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[Journal Article] Organelles that illuminate the origins of Trichomonas hydrogenosomes and Giardia mitosomes2017
Author(s)
Leger M, Kolisko M, Ryoma Kamikawa, Stairs CW, Kume K, Cepicka I, Silberman JD, Andersson JO, Xu F, Yabuki A, Zhang Q, Takishita K, Inagaki Y, Simpson AGB, Hashimoto T, Roger AJ
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Journal Title
Nature Ecology and Evolution
Volume: 1
Issue: 4
Pages: 0092-0092
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Proposal of a Twin Arginine Translocator system-mediated constraint against loss of ATP synthase genes from nonphotosynthetic plastid genomes2015
Author(s)
Kamikawa R, Tanifuji G, Ishikawa SA, Ishii K, Matsuno Y, Onodera NT, Ishida K, Hashimoto T, Miyashita H, Mayama S, Inagaki Y.
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Journal Title
Molecular Biology and Evolution
Volume: 32
Issue: 10
Pages: 2598-2604
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Rare loss of the Calvin Benson cycle in non-photosynthetic plastids2016
Author(s)
Ryoma Kamikawa, Zauner S, Moog D, Tanifuji G, Ishida KI, Mayama S, Hashimoto T, Archibald JM, Maier UG, Miyashita H,Inagaki Y
Organizer
ICES2016 Kyoto
Place of Presentation
京都府立大学
Year and Date
2016-09-10
Related Report
Int'l Joint Research
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