2000 Fiscal Year Final Research Report Summary
Study on plant speciation in Malesian Archipelago
| Project/Area Number |
10041157
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| Research Category |
Grant-in-Aid for Scientific Research (A).
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
系統・分類
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| Research Institution | THE UNIVERSITY OF TOKYO (2000)
Chiba University (1998-1999) |
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Principal Investigator |
ITO Motomi Dept.Systems Sciences, Graduate School of Arts and Sciences, THE UNIVERSITY OF TOKYO Associate Professor, 大学院・総合文化研究科, 助教授 (00193524)
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| Co-Investigator(Kenkyū-buntansha) |
UEHARA Koichi Dept.Biology, Fac. of Horticulture, Chiba University, Assistant Professor, 園芸学部, 助手 (20221799)
WATANABE Mikio Dept.Education, Aichi Kyoiku Univ., Associate Professor, 教育学部, 助教授 (30270995)
ASAKAWA Takeshi Dept.Biology, Fac. of Science, Chiba University, Assistant Professor, 理学部, 助手 (50213682)
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| Project Period (FY) |
1998 – 2000
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| Keywords | Araucariaceae / Hymenophyllaceae / Nicotiana / Nothofagaceae / Podocarpaceae / Speciation / Species diversity / Gondwana Plants |
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| Research Abstract |
Tropical regions have high biodiversity and studies of speciation and mechanism of acquiring diversity are necessary for understanding why they can keep such a high diversity. For this purpose, we analysis phytogeography of the plants using molecular phylogenetic methodology.
We have conducted field researches of Indonesian Archipelago in 1999 and 2000, and of New Caledonia in 2001. We investigated ferns (Hymenophyllaceae), Gymnosperms (Araucariaceae, Podocarpaceae), and Angiosperms (Nothofagaceae, Anacaradiaceae, Nicotiana) in these regions. These samples were carried back to Japan and we sequenced matK and rbcL genes on cpDNA, and ITS regions of nrDNA on nuclear genome. Based on these sequence data, we reconstruct phylogenetic trees by various methods, and discussed them from a phylogeographical point of view. We also discussed succession of plant distribution in Southern Hemisphere based on the phylogenetic trees obtained in this study
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