
Representation of the nucleotide positions of the two chromosomal hotspots. Informative sites bound the recombination breakpoints to within the shaded box for each isolate. (A) The 44-bp hotspot overlaps the rs2/ompA IGR and ompA and is within the 98-bp crossover region of clinical isolate G/CL-4. (B) The 48-bp hotspot involves the rs2 and the rs2/ompA IGR and is within the 254-bp crossover region of reference strain Da/TW-448. For A and B, the numbers +1202 and +1105, and +80 and −175 are the genomic positions relative to the start codon of ompA and rs2, respectively.











