Fig. 2

Heatmap for hierarchical clustering of differential gene expression. Each row of the grid corresponds to a different gene and each column represents a sample. The up-regulated (red) and down-regulated (yellow) genes were distinguished between the high versus low sperm hyperactivity groups in a) contrast (i) high versus low hyperactivity at the day of ejaculation in Landrace and b) contrast (iii) high versus low change in levels hyperactivity between day 0 and 96 h storage in Landrace