Figure 4From: Phylogeographic evidence of cognate recognition site patterns and transformation efficiency differences in H. pylori: theory of strain dominanceRate of transformation in different co-culture assays among hspAmerind and hpEurope strains. The panel A, shows the rate of transformation of a single plasmid (p801R); in this case there was not significant differences when hspAmerind strains were donors (D) or recipients (R) of the DNA fragment. In the panel B, frequencies of transformation of a double plasmid (p801R+pAD1-cat) are showed. Amerindian strains exhibited higher ability to incorporate DNA from hpEurope than vice versa.Back to article page