Inferring evolutionary pathways and directed genotype networks of foodborne pathogens
Fig 6
Prevalence as a function of the genotype network characteristics.
Each point represents a node (MLVA profile), with the y-axis as the average prevalence of that profile’s undirected cluster. A: this prevalence as a function of the distance to the reference node (the orange node in Figs 2 and 3). B: each node’s prevalence is compared with the size of its connected-component in the directed network. The trend is punctuated: the prevalence increases in a step-wise fashion with decreasing distance (from successful strains), or increasing connected-component size (connectivity of the node). For the sample size of N = 690 connected nodes, the correlation between log prevalence and distance is r = −0.613 (N = 690, p < 0.0001) and between log prevalence and log component size is r = 0.739 (N = 690, p < 0.0001).