Fig. 4From: Long-term persisting hybrid swarm and geographic difference in hybridization pattern: genetic consequences of secondary contact between two Vincetoxicum species (Apocynaceae–Asclepiadoideae)Admixture analysis showing the proportion of the genome of each individual originating from V. atratum or V. japonicum using the programs STRUCTURE and TESS. Each individual is represented as a vertical bar indicating the assignment score of each genetic groupBack to article page