FIG 4.

Mantel correlograms showing the Kenyan bat CoV RdRp sequences stratified by geographic distances (A) and host genetic distances (B). A Mantel correlation index (r) was calculated for each of the distance classes. Under the null hypothesis of no relationship between the distance matrices, r values would be close to zero. Positive r values suggest smaller genetic distances between case pairs, whereas negative r values suggest larger genetic distances between case pairs. Filled circles, r significantly different from zero; empty circles, r not significantly different from zero. The graph in panel B also shows kernel density plots for intragenus host distance density (solid light gray line) and intergenus host distance density (dotted light gray line). The corresponding y axis for the plot is shown on the right of panel B. The light gray rectangle between the two plots represents the transition area between the intragenus and intergenus host genetic distances.