Figure 1From: Global analysis of saliva as a source of bacterial genes for insights into human population structure and migration studiesComparison of the number of different OTUs per individual among the genes gdh , gtf , and ITS. Results are depicted from the individuals of the seven countries CH, CO, DE, GE PH, PO, TU. CH = China, CO = Congo, DE = Germany, GE = Georgia, PH = Philippines, PO = Poland, TU = Turkey.Back to article page