2010 Fiscal Year Final Research Report
Molecular phylogenetics on coevolution between legume plants and seed predator insects: toxin effects
| Project/Area Number |
20405006
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Ecology/Environment
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SHIMADA Masakazu The University of Tokyo, 大学院・総合文化研究科, 教授 (40178950)
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| Co-Investigator(Kenkyū-buntansha) |
FUJII Yoshiharu 独立行政法人農業環境技術研究所, 生物多様性研究領域, 上席研究員 (10354101)
TOQUENAGA Yukihiko 筑波大学, 生命環境科学研究科, 准教授 (90237074)
TUDA Midori 九州大学, 大学院・農学研究院, 助教 (20294910)
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| Co-Investigator(Renkei-kenkyūsha) |
ITO Motomi 東京大学, 大学院・総合文化研究科, 教授 (00193524)
SHIBAO Harunobu 東京大学, 大学院・総合文化研究科, 助教 (90401207)
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| Project Period (FY) |
2008 – 2010
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| Keywords | マメ科植物 / マメゾウムシ亜科 / 系統対応 / 共進化 / 毒性物質 / 分子系統樹 / 狭食化と広食化 / 寄主シフト |
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| Research Abstract |
In order to elucidate the coevolution between legume host plants and bruchid seed beetles, we extracted DNA from the seed beetles which were collected in oversea research trips and constructed the phylogenetic trees. Regenerating ancestral traits with statistical analysis, we determined the process from specialization to generalization in several clades. Based on the results, we revealed the coevolutionary processes of generalization of host plant utilization that they could infect their dry matured seeds with detoxing the poisonous chemical substance.
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