Linear representation of the GC skew (G-C)/(G+C) of six strains of Xanthomonadaceae using a 1000 base window. XCV = X. axonopodis pv. vesicatoria strain 85-10; XAL = X. albilineans strain GPE PC73; XOO = X. oryzae pv. oryzae strain MAFF 311018; SMA = S. maltophilia strain R551-3; XYL9a5c = X. fastidiosa strain 9a5c; XYLTemecula1 = X. fastidiosa strain Temecula1. A GC skew pattern very similar to that of X. axonopodis pv. vesicatoria strain 85-10 was observed for X. campestris pv. campestris strain ATCC 33913 and X. axonopodis pv. citri strain 306 (data not shown). A GC skew pattern very similar to that of S. maltophilia strain R551-3 was observed for S. maltophilia strain K279a (data not shown).