Fig. 1.

Evolutionary rate (ω) sliding window. Intra-species ω values (d_N/d_S) are represented in blue whilst inter-species ω values (K_N/K_S between P. vivax and malarial parasites infecting primates) are shown in purple. A ω value equal 1 means neutral evolution, ω < 1 negative selection whilst ω > 1 means positive selection. A diagram of the gene can be observed below the sliding window. Negatively selected inter-species codons are shown in green whilst positively selected sites are shown in red. Numbering is based on the alignment in Additional file 1: Figure S1