| Project/Area Number |
26650142
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
YOSHIDA Masaki 筑波大学, 生命環境系, 助教 (10449308)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 進化 / Paulinella / シリカバイオミネラリゼーション / 殻構築 / Paulinella chromatophora / 被殻形成 / 原生生物 / リザリア / 珪酸質被殻 |
|---|
| Outline of Final Research Achievements |
A transcriptome analysis and a proteome analysis on isolated siliceous scales were conducted in a siliceous testate amoeba Paulinella chromatophora (Rhizaria), in order to detect genes for siliceous shell construction and proteins associated with the siliceous scales. As a result, a silica transporter-like (sit-like) gene and several scale-associated proteins were detected. A phylogenyetic analysis on the sit genes suggested that the first organism that performed the silica-biomineralization was a testate amoeba like P. chromatophora.
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