2010 Fiscal Year Final Research Report
Evolution and diversification of Braarudosphaera bigelowii
| Project/Area Number |
20740296
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Okayama University |
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Principal Investigator |
HAGINO Kyouko Okayama University, 地球物質科学研究センター, 非常勤研究員 (90374206)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 円石藻 / 進化 / コッコリス / Braarudosphaera bigelowii |
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| Research Abstract |
Our morphometric and genetic studies of living Braarudosphaea bigelowii revealed that size-variation in living B. bigelowii is result of speciation with size-variation. This result suggests that size-diversification in fossil B. bigelowii is indicative of speciation of this taxon in geological age. Morphometric studies of Cenozoic Braarudosphaera showed that morphology and size of Braarudosphaera diversified greatly in the samples from 2.7-1.7Ma, likely corresponds with the low diversity period of coccolithophores.
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Research Products
(9 results)
