| Project/Area Number |
23540550
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Okayama University |
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Principal Investigator |
HAGINO Kyoko 岡山大学, 地球物質科学研究センター, 研究員 (90374206)
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| Co-Investigator(Kenkyū-buntansha) |
KOGAME Kazuhhiro 北海道大学, 大学院・理学研究院, 准教授 (80215219)
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| Co-Investigator(Renkei-kenkyūsha) |
KUWATA Akira 独立行政法人水産総合研究センター, 研究員 (40371794)
HORIGUCHI Takeo 北海道大学, 理学系研究院, 教授 (20212201)
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| Research Collaborator |
BENDIF El Mahdi The Marine Biological Association of the UK, 博士研究員
PROBERT Ian Station Biologique Roscoff, France, 研究員
VARGAS Colomban De Station Biologique Roscoff, France, 研究員
YOUNG Jeremy University College London, UK, 研究員
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | コッコリス / 微化石 / 円石藻 / 進化 / 多様性 / 層序 / 多様化 |
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| Research Abstract |
We examined morphological and morphometric variations in fossils Gephyrocapsa in the Quaternaly in North West Atlantic Ocean, morphometric changes in coccoliths of culture strains of G. oceanica in relation to growth phase, and genetic variation of living G. oceanica in nuclear, plastid and mitcondrial sequences. Morphological studies of fossil Gephyrocapsa showed that fossils of small Gephyrocapsa are varied in morphology of central area, distal shield elements and of bridge angle. Culture experiments revealed that coccoliths produced in stationary phase is larger than log phase, and size range of coccoliths differs between the strains. Molecular study revealed that cox-1b is suitable for the study of variation in G. oceanica.
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