2013 Fiscal Year Final Research Report
Effect of reproductive Interference on distributional relationships in Geranium
| Project/Area Number |
22570088
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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 |
Biodiversity/Systematics
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
NISHIDA Takayoshi 滋賀県立大学, 環境科学部, 教授 (60208189)
TAKAKURA Ko-ichi 大阪市立環境科学研究所, 研究員 (50332440)
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| Project Period (FY) |
2010-10-20 – 2014-03-31
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| Keywords | 繁殖干渉 / フウロソウ属 / 生物地理 |
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| Research Abstract |
Reproductive Interference (RI) has been gaining an attention for its explanatory power in distributional relationships between closely related species. We focused on several plants including Geranium species and investigated if RI between the congeneric species affected on their distributional relationships.
Based on our study, we found that a pair of Geranium species exerted RI to each other, which might be a reason for their habitat partitioning. We also recognized a strange distributional pattern for G. robertianum in Japan, in which a few populations were known to be restricted as endangered but other populations were recently found supposedly as invasive plants. Our molecular phylogenetic analyses suggest that the recently found populations are more likely naturalized from sources outside Japan.
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