Fig. 2From: Comparative genomics of whole-cell pertussis vaccine strains from IndiaPan and core genome plot. Pan Genome and core genome plot of eight B. pertussis vaccine strains (J445, J4445, J446, J448, BP165) and clinical strains (BPD1, BPD2) and reference strain Tohama-I. The plot shows that progression of the pan (orange) and core (purple) genomes. The number of shared genes was plotted as the function of the number of strains (n) added sequentially with 3070 genes which were shared by genomes. The orange line represents the least-squares fit to the power-law function f(x) = a.x^b where a = 3538.18, b = 0.0289134. The red line represents the least-squares fit to the exponential decay function f1(x) = c.e^ (d.x) where c = 3672.32, d = − 0.0317036Back to article page