| Project/Area Number |
20570024
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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 |
Ecology/Environment
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
ISHIHARA Michihiro Osaka Prefecture University, 理学系研究科, 准教授 (40315966)
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| Co-Investigator(Kenkyū-buntansha) |
YAGI Takashi 大阪府立大学, 産学官連携機構, 教授 (80182301)
KITADE Osamu 茨城大学, 理学部, 准教授 (80302321)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 地理的変異 / 遺伝的変異 / Nested clade phylogeographical analysis / ハプロタイプネットワーク / 系統関係 / 地史 / 季節多型 / キアゲハ / 海峡 / 遺伝的浮動 / 遺伝子流動 / 表現型可塑性 / 体サイズ / 緯度クライン / 系統的制約 |
|---|
| Research Abstract |
Latitudinal clines of life history traits were caused by local adaptation for latitudinal different conditions of temperatures in all insect species used in this study except for the bruchid, Acanthoscelides pallidipennis, in which the cause was phenotypic plasticity dependent on host seed sizes. In the swallowtail butterfly, Papilio machaon, the phylogeographical analysis using mtDNA and common garden experiment suggested that the history of population fragmentations and genetic drifts acted as constraint on the direction and degree of life history evolution. Therefore, this might make a gap in Tsugaru Channel across latitudinal clines.
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