Spatial and temporal variations in adaptive genes: from genome analysis to population dynamics

2015 Fiscal Year Final Research Report

• Project/Area Number: 24770014
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Ecology/Environment
• Research Institution: Nihon University (2014-2015); The University of Tokyo (2012-2013)
• Principal Investigator: MORINAGA Shin-Ichi 日本大学, 生物資源科学部, 助教 (80568262)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: ゲノム / 適応遺伝子 / シロイヌナズナ近縁種 / 植物標本

Outline of Final Research Achievements

To investigate the spatial and temporal variations in adaptive genes, I conducted population genomic analysis for current and past individuals in Arabidopsis halleri subsp. gemmifera that grows in Mt. Ibuki, Mt. Fujiwara, and other populations in Japan. I established a reference genome by de novo assembly analysis and employed population genomic analysis of spatial and temporal variations in adaptive genes for each 56 current and 200 past individuals. Based on these results, I discussed the differences in the number, kind, and function of adaptive genes among populations, and the evolutionary responses to global and local environmental changes in wild plant populations.

Free Research Field

生態ゲノム学