| Project/Area Number |
25440222
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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 |
Biodiversity/Systematics
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| Research Institution | National Museum of Nature and Science, Tokyo |
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Principal Investigator |
NAMIKAWA Hiroshi 独立行政法人国立科学博物館, 動物研究部, 研究主幹 (40249909)
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| Co-Investigator(Renkei-kenkyūsha) |
SASAKI Takenori 東京大学, 総合研究博物館, 准教授 (70313195)
DEGUCHI Ryusaku 宮城教育大学, 教育学部, 教授 (90302257)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ヒドロ虫 / Cytaeis / 宿主特異性 / 固着性動物 / 種分化 |
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| Outline of Final Research Achievements |
Morphological, life-historical, and molecular study was carried out in order to clarify the phylogenetic relationships in the epizoic hydroid Cytaeis and reveal the causes of speciation in this genus in term of host specificity. In this study, eight Cytaeis species (C. imperialis, C. kakunumae, C. nuda, C. uchidae, C. sp. 1, C. sp. 2, C. sp. 3, and C. sp. 4) living on the different host species, mainly gastropods, were collected from Japan. The acquisition of new different host species is regarded as one of causes of speciation in this genus, because these Cytaeis species are exclusively host specific hydroids living on the distinct hosts respectively.
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