| Project/Area Number |
25340115
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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 |
Environmental and ecological symbiosis
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| Research Institution | Toyo University (2015)
Lake Biwa Environmental Research Institute (2013-2014) |
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Principal Investigator |
Kaneko Yuko 東洋大学, 文学部, 准教授 (90280817)
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| Co-Investigator(Kenkyū-buntansha) |
AZUMA YOSHIHIRO 滋賀県琵琶湖環境科学研究センター, 総合解析部門, 専門研究員 (50250254)
TAKADA TAKENORI 北海道大学, 大学院地球環境科学研究院, 教授 (80206755)
NAKAGAWA MASATO 岡山県農林水産総合センター, 生物科学研究所, PD研究員 (60462206)
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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 |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | ヨシ / 洪水撹乱 / 種内倍数性 / 数理モデル / クローナル植物 / クローン多様度 / 氾濫原 / GIS解析 / 環境動態 / 遺伝情報 / 集団維持機構 / GIS / 栄養繁殖 / 近交弱勢 / コンピューターシミュレーション |
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| Outline of Final Research Achievements |
We found that before the 20th century, a wide range of floodplain, which corresponds to about 10% of Lake Biwa's surface area at standard water level, had been maintained by the floods having a probability of occurring once every 5 years at least. We investigated the genetic structure of Lake Biwa and Yodo river populations, based on intraspecific variation of chromosome number. Moreover, we developed three mathematical models of clonal plants: (i) to obtain the optimal vegetative reproduction rate, (ii) to describe the propagation of pathogenic disease among clonal individuals, (iii) to calculate genetic composition with 2 loci and 4 alleles. The results of the former two models are published in international journals.
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