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Point mutations as inferred from the creation or loss of endonuclease cleavage sites. (A) XbaI-cleaved genomic DNA of LT7 (lane 1) and 9059A (lane 2); (B) AvrII-cleaved genomic DNA of LT7 (lane 1) and 8608D (lane 2); (C) I-CeuI-cleaved genomic DNA of LT7 (lane 1) and 8111F231213 (lane 2). For these three strains, genomic translocations, duplications, and inversions had been ruled out.
