Fig. 3

PCA scatter plots of DNA sequences haplotypes of hrp2 exon2 region from different infection source P. falciparum isolates. (1) The horizontal yellow line was the X axis, and vertical yellow line the Y axis, and left inclined yellow line the Z axis. (2) The different color blocks represented haplotypes, in which yellow blocks were these haplotypes with the minimum PCA value and red blocks were those with the maximum PCA value. (3) The number labels on the block were the haplotype names with frequencies greater than 0.8%. A labels block are haplotypes with only sequence of African isolates, and Y labels block are haplotypes with only sequence of Yunnan Province local isolates, and no labels block are haplotypes with only sequence of Myanmar isolates