FIG 4.

TCS haplotype (allelic) networks generated using PopART program from the individual sequences of five housekeeping genes (i.e., atpD, gyrB, ppk, recA, and rpoB) in 184 worldwide Clavibacter michiganensis subsp. michiganensis strains. Each circle represents a unique allele within the sequences of a given gene. The size of the circles indicates the relative frequency of strains belonging to a particular allele. Hatch marks along the branches indicate the number of mutations. Numbers on the left side of the radix character represent the corresponding allele as shown in Table S1, while the numbers on the right side of the radix character represent the number of strains in each allele. Each color indicates a different geographic location, i.e., Africa (strains from Algeria, Morocco, and South Africa), Eastern Asia (strains from China and Taiwan), Europe (strains from Belgium, France, Hungary, Italy, the Netherlands, Portugal, Slovenia, Spain, and Switzerland), Iran, South America (strains from Brazil, Chile, and Uruguay), New Zealand, and the United States.