Hierarchical clustering of canine and human datasets using exclusively the expression levels of the NF-κB target genes (probesets).

<p>Hierarchical clustering of the canine (A) and human (B) datasets using exclusively the expression levels of the NF-κB target gene set. The samples are arranged in the columns (blue squares denote healthy and red squares denote DLBCL) and the probesets are in the rows. The dendrograms are drawn using Euclidean distances with average linkage method. (A) In the canine dataset (GSE30881), the 199 NF-κB target probesets separate the dataset into three top-level clusters. While the first and the third clusters have exclusively of DLBCL samples, the second cluster has all the healthy samples with two DLBCL samples. (B) In the human dataset (GSE12195), the 259 NF-κB target probesets separate the dataset into two top-level clusters. The first cluster has 12 samples that include all the healthy samples and two DLBCL samples, while the second cluster is solely of 43 DLBCL samples. The numbers above each column refer to sample identification numbers.