Figure 2
From: Leukocyte count affects expression of reference genes in canine whole blood samples
Pairwise variations between 2 sequential normalization factors including an increasing number of potential reference genes . To determine the optimal number of reference genes, first the geometric mean of the expression of the previously ranked genes was calculated and then pair wise variations between sequential normalisation factors were calculated. Using the cut-off recommended by GeNorm of 0.15 the optimal number of reference genes for the data set in this study would be at least 5.