| Project/Area Number |
22370083
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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 | 一般 |
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| Research Field |
Evolutionary biology
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SUYAMA Yoshihisa 東北大学, 農学研究科, 准教授 (60282315)
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| Co-Investigator(Renkei-kenkyūsha) |
YAHARA Tetsukazu 九州大学, 大学院・理学研究院, 教授 (90158048)
TSUMMURA Yoshihiko 森林総合研究所, 室長 (20353774)
INOMATA Nobuyuki 福岡女子大学, 国際文理学部, 准教授 (20301335)
KUSUMI Junko 九州大学, 大学院・比較社会文化研究院, 講師 (20510522)
TESHIMA Kosuke 九州大学, 大学院・理学研究院, 助教 (20447593)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2012: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2011: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | 集団遺伝学 / 適応進化 / 最終氷期 / 照葉樹林 / 集団構造 / 中立遺伝子 / 適応淘汰遺伝子 |
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| Research Abstract |
Laurel forests dominating pristine lowlands in western Japan are considered to have expanded their distribution from one or more refugia after the last glacial maximum. In this project, we investigated their evolution during and after the expansion by studying genetic structure of their representative species, Distylium racemosum, Cleyera japonica, and Zanthoxylum ailanthoides, along with Taxodium distichum that grows in wetlands of North America. We obtained some indications that the three laurel forest species, although growing in the same forest at present, had different population histories. Also we found a small number of candidate genes that might have contributed to the adaptation.
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