Chloroplast and nuclear microsatellite DNA diversities reveal the introduction history of invasive species in Japan

Research Project

Project/Area Number	20780111
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Forest science
Research Institution	The University of Tokyo
Principal Investigator	KIMURA Megumi The University of Tokyo, アジア生物資源環境研究センター, 特任研究員 (20436520)
Project Period (FY)	2008 – 2010
Project Status	Completed (Fiscal Year 2010)
Budget Amount *help	¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000) Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords	外来生物 / ニセアカシア / マイクロサテライトマーカー / 遺伝子流動 / 分布拡大
Research Abstract	In order to elucidate the invasion process and effectively manage the growing area of R. pseudoacacia, two studies were carried out as follows : First, to understand the invasion process using nuclear and chloroplast SSR markers. In Japan, there is no isolation by distance, however, significant genetic differences were found between populations. The genetic analysis also suggested that R. pseudoacacia inJapan might be originated from several seed/seedling sources. Second, to reasonably design the growing area size of R. pseudoacacia for honeybee farms, the genotype of pollen collected from honeybee legs was compared with flowered trees growing around honey colonies. From this results, we estimated the foraging area.