Figure 6From: Biologically meaningful expression profiling across species using heterologous hybridization to a cDNA microarray Spots of low fold change are under represented in heterologous hybridization. The 804 reference set spots are divided into 6 classes according to fold change (> 6.0 n = 41; 5.0 – 6.0 n = 24; 4.0 – 5.0 n = 85; 3.0 – 4.0 n = 128; 2.0 – 3.0 n = 305 and 1.0 – 2.0 n = 221). For each fold change class (x-axis) the percentage of spots in that class (y-axis) that are also identified (p < 0.05) in other species are depicted by colour coded symbols. The under representation of low fold change classes is most dramatic for more distantly related fish (note salmon, green and zebrafish, yellow).Back to article page