Estimation of historical gene flow in sea-drift seed dispersal plants: analysis of Calophyllum inophyllum which distribute to pacific rim

2015 Fiscal Year Final Research Report

• Project/Area Number: 25871088
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Ecology/Environment; Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: HANAOKA SO 国立研究開発法人 森林総合研究所, 林木育種センター, 主任研究員 (40598728)
• Research Collaborator: Chien Ching-Te Taiwan Forestry Research Institute, Researcher ; Padolina Cenon Secretariat of the Pacific Community, Officer
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: テリハボク / 海流散布 / EST-SSR / MIG-seq / 遺伝構造 / 遺伝子流動

Outline of Final Research Achievements

Genetic structure of Calophyllum inophyllum was analyzed to estimate the potential of gene flow in sea-drift seed dispersal plants. Two methods (EST-SSR and MIG-seq analysis) were used, and high levels of genetic differentiation between South Pacific (Solomon islands, Vanuatu, Fiji and Tonga) and Taiwan/Japan was detected. The results suggesting limitation of historical gene flow between two regions. On the Other hand, clear genetic structures along longitude was detected within South Pacific area or Taiwan/Japan. These results indicated the certain level of gene flow within each region has been occured, and potential of gene flow for several hundreds kilometer by sea-drifted seed dispersal was suggested even among island populations.

Free Research Field

分子生態学