Lineage diversification of two Cupressaceae conifer genera in New Caledonia

2016 Fiscal Year Final Research Report

• Project/Area Number: 26850098
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Kyoto University (2015-2016); The University of Tokyo (2014)
• Principal Investigator: Sakaguchi Shota 京都大学, 人間・環境学研究科, 助教 (50726809)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 針葉樹 / ニューカレドニア / 蛇紋岩 / 進化

Outline of Final Research Achievements

This project studied two conifer genera of Callitris and Libocedrus in Cupressaceae to detect the genes which would have played roles in environmental adaptation in New Caledonia. RNA-seq based phylogenetic analyses provided evidences for accelerated molecular evolution in the genes including macroelement transporter and stress-response functions. Population demographic analysis was particularly performed for one Callitris species to show complex river system and mountain barriers promoted significant population differentiation even for wind-pollinated conifers in a small geographic range.

Free Research Field

植物生態進化学