Fig. 5. Time-calibrated maximum clade credibility tree based on core-genome sequences for ST1/ST2 isolates of Xylella fastidiosa subsp. fastidiosa from Majorca, California and the South-eastern USA.
Informative tree priors used to calibrate the nodes are given in Table 1. The Majorcan clade forms a monophyletic cluster nested within the Californian clade sensu lato. The tips (isolate names) are coloured according to the host: purple = grapevine; green = almond; red = elderberry; golden = Ambrosia artemisiifolia and blue = coffee plant. Isolate GB514 from Texas falls within the Californian Clade. Node bars = 95% highest posterior density (HPD) node age; node number represents the posterior probability.