Figure 5From: Global analysis of saliva as a source of bacterial genes for insights into human population structure and migration studiesGtf -subclusters. (A) Phylogenetic UPGMA tree of predominant gtf-variants defined as OTUs at 99% identitiy level with the sub-clusters A to I defined at 97% identity level. Note, that OTU015 (sub-cluster F) differs from OTU002 by a deletion of 54-nucleotides, which is not visible in the treeing analysis. For further information, see main text. The scale bar represents 2% nucleotide differences; (B) Relative abundance of gtf-sub-clusters (A to I) across all 12 geographic locations. 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.Back to article page