3.2. Bacillus Anthracis Virtual Genomic Fingerprints
Results from the virtual hybridization of the bacterial genomes with the UFC-13 include: the probes with which hybridization occurred, the sites in the genome where hybridization took place, stability values for the heteroduplexes formed, and the sequences involved. From these data, an image of the virtual hybridization pattern of each organism is generated; showing the sites on the microarray of UFC-13 probes where binding occurred and those sites where no hybridization occurred. The overall image of each organism’s virtual hybridization pattern in the DNA sensor constitutes its genomic fingerprint. Microarray_pic shows a genomic fingerprint of each Bacillus anthracis strain. This image represents an in silico DNA microarray for a given organism, together with the specific probes used in hybridization experiments. This tool shows the set of 15,264 probes on a microarray as spots, color‑coded to identify those probes that hybridized (Figure 3).
Figure 3  Fingerprints of two bacteria (A) Bacillus anthracis Ames Ancestor (35.26 GC%, 5.5 Mb); (B) Bacillus anthracis Kruger (35.1 GC%, 5.47 Mb); (C) Combination and overlap fingerprint of both microorganisms.

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