Fig. 2

Frequency distributions of K1-like allele sequences of msp1 block 2. a Overall, 225 different allele sequences were detected among 539 K1-like msp1 block 2 sequences determined by assembly of short sequence reads, of which 162 occurred only once. The proportion of each as a percentage of all 539 K1-like sequences is shown. b Eight K1-like msp1 block 2 sequences accounted for more than 5% in either Africa or Asia. The proportion of all K1-like allele sequences in Africa (367 K1-like sequences) and Asia (172 K1-like sequences), and the translated amino acid sequences of these alleles are shown. Amino acid sequences of all alleles detected are shown in Additional file 9