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Symmetry breaking during a tracking assay in M. xanthus. (A) A swarm of DK1622 (wt) (Tn = 6 h; TR = 1.94 ± 0.20). (B) A swarm of DK1253 (A+ S−; Tn = 18 h; TR = 1.23 ± 0.06). (C) A swarm of DK1218 (A− S+; Tn = 23 h; TR = 0.90 ± 0.15). (D and E) Higher magnification view of DK1622 leading and lagging edges, respectively. Scale bars in panels A to C, 1 mm; scale bars in panels D and E, 0.5 mm.
