| Project/Area Number |
21870012
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
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| Research Institution | Shinshu University |
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Principal Investigator |
UEDA Shouhei Shinshu University, 理学部, 奨励研究員 (30553028)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,405,000 (Direct Cost: ¥1,850,000、Indirect Cost: ¥555,000)
Fiscal Year 2010: ¥1,053,000 (Direct Cost: ¥810,000、Indirect Cost: ¥243,000)
Fiscal Year 2009: ¥1,352,000 (Direct Cost: ¥1,040,000、Indirect Cost: ¥312,000)
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| Keywords | 東南アジア熱帯雨林 / 生物多様性 / シジミチョウ / タマバエ / カイガラムシ / 分子進化 / 分岐年代推定 / 寄主選好性 / 分子系統解析 |
|---|
| Research Abstract |
In the Southeast Asian tropics, specific Iycaenid butterflies (Arhopala) and gall midges (Cecidomyiidae) parasitize Macaranga ant-plants inhabited by mutualistic ants tending scale insects. To determine when the lycaenids and the gall midges first parasitized the Macaranga tripartite symbiosis, we constructed a molecular phylogeny of the both parasites and estimated their divergence times. The minimum age of the lycaenids and that of the gall midges were estimated to be 2.05 Myr and 10.6 Myr, respectively. These results suggest that the lycaenids associated with the pre-existing plant-ant-scale insect symbiosis, while the gall midges have associated with Macaranga plants before the tripartite symbiosis was formed.
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