Additional file 7: Figure S2. of Evolution of East Asia’s Arcto-Tertiary relict Euptelea (Eupteleaceae) shaped by Late Neogene vicariance and Quaternary climate change

structure results for identifying the optimal number of clusters (K) among 440 individuals (36 populations) of Euptelea based on nSSR data. The number of K was varied from 1 to 36 in 10 independent runs. The dot plot indicates the mean posterior probability [lnP(D)] for each value of K [64], and the superimposed line diagram represents the corresponding ΔK statistics calculated according to Evanno et al. [65]. (PDF 337 kb)