Fig. 2.

Unsupervised (on the left) and supervised (on the right) average linkage clustering of 39 differentially expressed genes. Supervised clustering was performed according to the fertilization rate (diagram above the respective samples) recorded 3 HPF. Each row represents the same gene with symbol given on the right-hand side. Each column represents a RNA sample with its symbol provided above the respective column. Samples annotated with black font (H1–H7) represented high quality group, whereas samples annotated with blue font (L1–L7) represented low egg quality group. Expression level for each gene is presented using color intensity scale, where red and green represents over- and under-expression levels, respectively. Black color represents median abundance of the gene