Haplotype networks of ITS/IGS, TUB2 and EF1-α . Networks constructed in TCS 1.21 [60,61]. Each haplotype is represented as a circle proportional in size to the number of isolates in each haplotype. Inferred intermediate haplotypes are represented by a small solid dot. Each line segment represents a single mutation. The letters defining haplotypes in Table 2 are shown to the right of each node. Geographic origins of isolates in each haplotype are proportionally represented in pie charts by different patterns shown in the key in the centre of the figure. The ancestral haplotypes determined by root probability  are indicated by asterisks (*), whereas those determined by maximum parsimony using E. necator var. ampelopsidis as the outgroup are indicated by §.
Brewer and Milgroom BMC Evolutionary Biology 2010 10:268 doi:10.1186/1471-2148-10-268