Fig. 4From: Phylogeography of cultivated and wild ophiopogon japonicus based on chloroplast DNA: exploration of the origin and sustainable cultivationMinimum spanning network of 19 cpDNA haplotypes in O. japonicus. The network was rooted at the O. amblyphyllus Wang et Dai. The circle size is proportional to the number of samples per haplotype. Hollow dots indicate the number of mutational stepsBack to article page