Blue, red, and green dots are locations of pht genes, IS1167 transposase, and tRNA/rRNA gene clusters, respectively. Duplications ΩZ.1 and ΩZ.2 result in duplication of murZ and surrounding genes, while ΩA.1 and ΩA.2 result in murA duplication. ΩZ.1 is present in sup gpsB-8. ΩZ.2 is present in sup gpsB-9, sup gpsB-10, and sup stkP-2. ΩA.1 is present in sup stkP-3 while ΩA.2 is present in sup stkP-4.