| 要旨トップ | 目次 | 日本生態学会第59回全国大会 (2012年3月,大津) 講演要旨
ESJ59/EAFES5 Abstract


一般講演(ポスター発表) P3-120A (Poster presentation)

Genetic differentiation and its biogeographic history of Cardamine leucantha populations among the Japanese archipelago, Sakhalin, and Korea

*Iwasaki, T. (Univ. of Tokyo), Araki, S. K. (Kyoto Univ.), Sabirov, R. N. (Russian Academy of Science), Marhold, K. (Slovak Academy of Science), Kudoh, H. (Kyoto Univ.), Ito, M. (Univ. of Tokyo), Morinaga, S.-I. (Univ. of Tokyo)

Severe climatic oscillations during Quaternary period produced great changes not only in species distribution but also in topography, especially in the Japanese archipelago. During the glacial periods, it was connected to the Eurasian continent by landbridges as a result of the lower sea level. The flora of Japan contains many plant species common to the Eurasian continent, and the species appear to have migrated from the continent into Japan via the landbridges. However, for such species, the migration histories from the continent as well as the differentiation process in the Japanese archipelago were not fully revealed.

In this study, we focused on a diploid clonal herb Cardamine leucantha (Brassicaceae) that widely grows on cool-temperate forest floors and margins in East Asia. We analyzed ten nuclear gene sequences (e.g., F3H, CHS and PHYA) for 96 individuals from 45 populations of Japan, Sakhalin, and Korea, and revealed the migration routes into and differentiation process within the Japanese archipelago.


日本生態学会