Three Independent Migrations of Dodonaea viscosa (Sapindaceae) to Japan Archipelago Revealed by Molecular Data

摘要

To investigate the migration of Dodonaea viscosa to the Japanese Archipelago, we conducted molecular phylogenetic analyses using internal transcribed spacer (ITS) and partial external transcribed spacer (ETS) sequences from plants collected on the Bonin Islands and the Ryukyu Archipelago. Dodonaea viscosa occurring on the Bonin Islands, the northern and central Ryukyu Islands, and the southern Ryukyu Islands were placed in separate clades. This suggests that these three linages must have migrated independently to the Japanese Archipelago.