Figure 1.

Global gene expression differences induced upon positive or negative selection on the B10^k and NOD^k genetic backgrounds. The global difference in gene expression between conditions was calculated as a Euclidean distance, taking into account the number of genes with differential expression, and the scale of differential expression, for each replicate chip. Euclidean distances are represented as the distance between conditions for both the B10^k and NOD^k genetic backgrounds, with the average positions of groups located at the apexes of the triangles. Dotted lines correspond to the Euclidean distance between B10^k and NOD^k genetic backgrounds, for the same population.