Distance tree of 3D7 var gene 500 bp 3' region generated using the p-distance/NJ method. The four dense clusters A through D were supported by both bootstrapping and maximum parsimony (MP) tree (not shown). The relationship of the remaining sequences could not be verified by the MP tree making method. Numbers at the nodes represent bootstrap proportions (BP) on 1000 replicates. The scale bar represents the proportion of different nucleotide compared. PlasmoDB accession numbers are shown. Genes with assigned cluster are collected in figure 7.