2011 Fiscal Year Final Research Report
The molecular ecological effects of exotic trees on native tree populations
| Project/Area Number |
21710244
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Resource conservation science
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| Research Institution | Tokyo University of Agriculture |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
SUZUKI Kojiro 東京農業大学, 地域環境科学部, 教授 (80256643)
HAMANO Chikayasu 東京農業大学, 地域環境科学部, 教授 (80109561)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 外来樹木 / 自然交雑 / 遺伝子汚染 / 遺伝マーカー / 分子生態学 |
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| Research Abstract |
Natural hybridization between exotic L. lucidum and native L. japonicum Thunb. has been a long-term concern in Japan. To reveal the interspecific crossability and the possibility of natural hybridization, we conducted(1) the observation of flowering phenology,(2) the experimental crosses and(3) an AFLP analysis. The hybrids between L. japonicum and L. lucidum do not establish at present, at least in a Kanto region, in Japan. The natural hybridization between these species might be prevented by the difference of flowering time and/or the negative endogenous selection on hybrid seeds or seedlings.
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