Fig. 3From: Characterizing the impact of sustained sulfadoxine/pyrimethamine use upon the Plasmodium falciparum population in MalawiRelationship between dfhr mutations and gch1 copy numbers. Plasmodium falciparum parasites with DELLY-predicted gch1 promoter duplication across Africa exist almost exclusively on a dhfr triple mutant background, whilst predicted whole gene duplication in South East Asia is linked to the dhfr âquadruple mutantâBack to article page