Unique 9-mer probe bio-signatures from hybridization of Brucella genomes demonstrates ability to resolve highly similar genomes. This dendogram illustrates the unique bio-signature obtained from Brucella abortus RB51, Brucella abortus12, Brucella abortus86-8-59, Brucella melitensis16 M and Brucella suis1330. Normalized data from the 9-mer data set were filtered for intensity signals greater than the 20th percentile. Only intensity signals with a fold change of 5 or greater were included. These 2,267 elements were subjected to hierarchical clustering with Euclidean distance being used as a similarity measure. The signal intensity values were represented as a log2 scale. The range of log2 values are from 7.2 to 13.