Fig. 6From: Phylogeography of cultivated and wild ophiopogon japonicus based on chloroplast DNA: exploration of the origin and sustainable cultivationHistorical biogeography of O. japonicus. (a) The ancestral area reconstruction results based on RASP of O. japonicus. The pie charts on nodes display the relative probabilities of possible ancestral ranges. (b) The map showing five geographical regions in colors as defined in RASP analysis. Back to article page