Figure 3

Frequency and distribution of VGSC Intron-1 haplotypes and of Int-1 ⁷⁰² genotypes in Anopheles gambiae , Anopheles coluzzii and hybrids. VGSC Int-1 haplotypes M1, M3, M5 (dark violet) and S1 (dark green) are named as in Figure 1, M* = sum of all other ‘M1’-related haplotypes (pink), S* = sum of all other ‘S1’-related haplotypes (light green), “FW” = sum of all Far-West private haplotypes (yellow). Int-1^C/C (black), Int-1^T/T (white) and Int-1^C/T (grey) identify genotypes at site 702 (Int-1⁷⁰²). Dots on the Africa map correspond to sampling localities reported in Additional file 1: Table S1 and are grouped as follows: Far-West (N = 156) = Senegal, Gambia, Guinea Bissau, Guinea Conakry; West (N = 172) = Mali, Ivory Coast, Burkina Faso, Benin, Nigeria; Central (N = 82) = Cameroon and Angola. Data include original sequences and those from Gentile et al. [23].