| Project/Area Number |
22570107
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Lake Biwa Museum |
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Principal Investigator |
SMITH Robin 滋賀県立琵琶湖博物館, 研究部, 主任学芸員 (70416204)
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| Co-Investigator(Kenkyū-buntansha) |
KAMIYA Takahiro 金沢大学, 自然システム学系, 教授 (80194976)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 進化 / 化石 / カイミジンコ / 形態 / 巨大精子 / 琵琶湖 |
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| Research Abstract |
Our research resulted in the discovery of the shortest, longest and oldest cypridoidean sperm known, and greatly expanded the data about sperm lengths and sperm morphology in the superfamily. Our results suggest that a plesiomorphic sperm length for the superfamily may have been around 1000 microns, and sperm lengths have reduced in one group, and increased in others.
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