Sensitivity determination of aCGH analyses. (a) aCGH analyses of the reference strain 8004 and its derivative strain C1430nk. The strain C1430 possesses one extra DNA copy of the ORFs XC1429 and XC1430 compared to the reference strain 8004. (b) TreeView display of the aCGH clustering result of the two sequenced genomes of the Xcc strains 8004 and ATCC33913. Each row corresponds to the specific ORFs on the array and the ORFs are arranged in the genome order of the reference strain 8004 from XC0001 at the top to XC4332 at the bottom. From the aCGH result, it is observed that the ATCC33913 is missing two prominent DNA fragments, one from strain 8004 ORF XC2030 to XC2074 and the other from XC2399 to XC2444, which is consistent with sequence information.