Fig. 5.

Maximum likelihood phylogenetic tree of the 47 unique haplotypes of the AMA-1 gene of P. falciparum in Thailand. The tree was constructed using the MEGA program from AMA-1 nucleotide sequences. The tree with the highest log likelihood (-4,803.3701) is shown. The percentage of trees in which the associated taxa clustered together is shown next to the branches. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. Sequences are identified with their names of parasite isolates. The letters indicate the origin of isolates MH, Mae Hong Son; K, Kanchanaburi; RN, Ranong; TD, Trat; UB, Ubon Ratchatani. The tree was rooted using the sequence of the P. reichenowi AMA-1 gene as an out group. Bootstrap values of >50% are shown.