Life history monograph on the genus Trillium

2016 Fiscal Year Final Research Report

• Project/Area Number: 26291087
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Ecology/Environment
• Research Institution: Hokkaido University
• Principal Investigator: OHARA Masashi 北海道大学, 地球環境科学研究科(研究院), 教授 (90194274)
• Co-Investigator(Kenkyū-buntansha): 石崎 智美 新潟大学, 自然科学系, 助教 (20632433) ; 富松 裕 山形大学, 理学部, 准教授 (40555398) ; 山岸 洋貴 弘前大学, 学内共同利用施設等, 助教 (40576196) ; 高田 壮則 北海道大学, 地球環境科学研究科(研究院), 教授 (80206755)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 植物生活史 / 林床植物 / 植物個体群 / 繁殖特性 / エンレイソウ属植物

Outline of Final Research Achievements

The present study aimed to make a life history monograph of the genus Trillium. First, we conducted demographic studies (long term monitoring survey of the each single individual including juvenile individuals) and reproductive biology (breeding and pollination systems) in the natural conditions. Second, we analyzed spatio-temporal genetic variations of each species and the processes of speciation, such as mechanisms of interspecific hybridization in the natural habitats and subsequent chromosome doubling. Third, we integrated all information obtained from demographic and reproductive studies, and established mathematical models to maintain the populations of each species including marginal populations of distribution ranges.

Free Research Field

植物生態学