Figure 5: Agglomerative hierarchical clustering. Agglomerative hierarchical clustering was used to examine the similarities/dissimilarities between the PGC lines. Expression of CVH, cDAZL, cPOUV, cNANOG, and gga-miR-302a and the proliferation rate of the lines were analysed, and three groups were identified (group A, B, and C) on the dendrogram.