Fig. 2
From: Gene flow and introgression are pervasive forces shaping the evolution of bacterial species
Patterns of gene flow across species. a Distribution of adjusted h/m ratios between candidate and reference species. The adjusted ratio of homoplasic to non-homoplasic alleles h/mnorm was computed to quantify gene flow. h/mnorm was computed by adjusting the values of h/m on the candidate and reference species (h/mcand) relative to h/m of the reference species alone (h/mref) and relative to the h/m ratio expected to result from convergent mutations alone (h/m0). The adjusted ratio h/mnorm is expected to be null when h/mcand is equal to h/m0 (h/mcand = h/m0). The adjusted ratio h/mnorm is expected to be near unity when h/mcand is similar to h/mref (h/mcand = h/mref). Only values ranging between 0 and 1 were represented (several datapoints exceeded 1, n=191, 1.6%). b Distribution of maximum sequence identities (ANI of core genes) between candidate and reference species that were reclassified as part of the same species based on gene flow. c Distribution of maximum sequence identities (ANI of core genes) between candidate and reference species that were not reclassified as part of the same species based on gene flow