Investigation of ecological function of cyathium with a focus on its multi-cycle synchronous dichogamy
| Project/Area Number |
25440200
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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 | Fukushima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KANEKO Shingo 福島大学, 共生システム理工学類, 准教授 (30635983)
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| Research Collaborator |
YAMASHITA Yumi 福島大学, 共生システム理工学研究科, 博士後期課程
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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 |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 杯状花序 / 多回型同調的雌雄異熟 / 雌雄同熟 / 自家和合性 / 自家不和合性 / トウダイグサ属トウダイグサ亜属 / 開花習性 / 自殖率・他殖率 / ナツトウダイ類 / タカトウダイ類 / 自家和合性・自家不和合性 / 雌雄異熟 / 植物の性表現 / 分子系統解析 / 他殖率 |
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| Outline of Final Research Achievements |
We studied the flowering phenology of each of the cyathia in the flowering shoots of 16 taxa and the self-incompatibility of 6 taxa of Euphorbia subg. Esula to reveal the distribution in the phylogeny of multi-cycled synchronous dichogamy and its ecological significance. Multi-cycled synchronous dichogamy was observed in 4 sections in Euphorbia subg. Esula; in 3 of these, we also observed adichogamy. It is suggested that this flowering habit is widely distributed and has been obtained or lost independently at least three times in the subgenus. Various flowering habits were observed among the adichogamous taxa. All of the studied annual or biennial taxa were both adichogamous and self-compatible, suggesting a close relationship between multi-cycled synchronous dichogamy/adichogamy and life history in the subgenus.
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Report
(4 results)
Research Products
(5 results)
