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(a) Heat map and race relationship of 7 Pst isolates according to their virulence on 17 differential cultivars. The susceptible and resistant types were recorded as 1 and 0, respectively. Heatmap.2 was used for clustering. (b) Phylogenic tree of 7 Pst isolates constructed with their cSNPs using Mega5-nj. The origin and isolation date of each isolate were marked.
