Acquisition and Evolution of Plant Pathogenesis-- Associated Gene Clusters and Candidate Determinants of Tissue-Specificity in Xanthomonas. - Hong Lu; Prabhu Patil; van Sluys, Marie-Anne; White, Frank F.; Ryan, Robert P.; Dow, J. Maxwell; Rabinowicz, Pablo; Salzberg, Steven L.; Leach, Jan E.; Sonti, Ramesh; Brendel, Volker; Bogdanove, Adam J. (PLoS ONE, 2008)