Adaptation and evolution of coastal plants into inland habitat on oceanic islands
| Project/Area Number |
25840137
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Museum of Natural and Environmental History, Shizuoka (2015)
The University of Tokyo (2013-2014) |
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Principal Investigator |
Takayama Koji ふじのくに地球環境史ミュージアム, 学芸課, 准教授 (60647478)
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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 |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 海洋島 / 種子散布 / 遺伝的多様性 / 南太平洋諸島 / 小笠原諸島 |
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| Outline of Final Research Achievements |
To understand the evolutionary process that coastal plants inhabited inland environments of oceanic islands, which were often observed in many oceanic islands, morphological and phylogenetic analyses were performed in Hibiscus tiliaceus (Malvaceae) in the South Pacific and Bonin (Ogasawara) Islands. Morphological analyses of flowers reviled that the distance between anther and stigma was significantly shorter in inland populations than coastal ones of H. tiliaceus in Marquises Islands. The morphological changes observed in the inland populations should ensure automatic selfing and increase the number of seed sets in poor pollinator fauna in the oceanic islands. Phylogenetic analyses indicated independent origins of H. tiliaceus populations in the Bonin, Tahiti, and Marquises Islands. There were no significant genetic differences between inland and coastal populations of H. tiliaceus in the South Pacific Island, indicating the rapid adaptation into inland habitats.
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Report
(4 results)
Research Products
(8 results)
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[Journal Article] Genetic consequences of cladogenetic vs. anagenetic speciation in endemic plants of oceanic islands2015
Author(s)
Koji Takayama, Patricio Lopez-Sepelveda, Josef Greimler, Daniel J. Crawford, Patricio Peñailillo, Marcelo Baeza, Eduardo Ruiz, Gudrun Kohl, Karin Tremetsberger, Alejandro Gatica, Luis Letelier, Patricio Novoa, Johannes Novak, Tod F. Stuessy
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Journal Title
AoB Plants
Volume: psv102
Pages: plv102-plv102
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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