Variation in LPS clusters. Genes are represented by colored blocked arrows, with similar colors indicating genes belonging to the same COG (cluster of orthologous genes). (a) Comparison of NI1, NI38, X. euvesicatoria 85-10, X. perforans 91-118, and X. translucens pv. translucens DSM18974. (b) Comparison of representative LPS clusters for X. perforans groups 1A (GEV936 and GEV1026), 1B (Xp5-6, Xp91-118), and 2 (GEV1001) and the Italian strain 4P1S2. Orange arrows indicate the positions of etfA genes across the sets compared, while green arrows represent unique genes in NI1 and X. translucens pv. translucens.