Fig. 2From: Draft genome sequence for virulent and avirulent strains of Xanthomonas arboricola isolated from Prunus spp. in SpainPhylogenetic tree highlighting the position of two X. arboricola strains (shown in bold) relative to the pathotype strains (PT) of X. arboricola. X. citri subsp. citri str. 306 [64, 65] was used as an outgroup. The tree was built based on the comparison of concatenated nucleotide sequences of seven housekeeping genes (atpD, dnaK, efP, fyuA, glnA, gyrB and rpoD) [3]. Sequences were first aligned and concatenated. The phylogenetic tree was constructed by using MEGA 6.0 software [13] with Maximum Likelihood method based on Tamura-Nei model. Bootstrap values (1,000 replicates) are shown at the branch points. GenBank accession number of X. citri subsp. citri str. 306 genome sequence is shown in parenthesis; accession numbers associated to the housekeeping loci of the pathotype strains can be found in a previous study [3]Back to article page