Figure 9.

Two-dimensional principle coordinate analysis based on UniFrac distances. Each colored dot is an individual of the following countries (A) CH, CO, GE, PH, and SO; (B) EU = European countries DE, PO, and TU; AM = American countries/states AR, BO, CA, LO; Dashed circles indicate the tentative grouping of individuals from the same geographic location; AR = Argentina, BO = Bolivia, CA = California, CH = China, CO = Congo, DE = Germany, GE = Georgia, LO = Louisiana, PH = Philippines, PO = Poland, SO = South Africa, TU = Turkey.