Fig. 3

Global view of temporal sRNA expression profiles in rabbit serum during T. gondii infection. a The sRNA correlation heatmap of sample clustering. b Principal component analysis of all identified serum sRNA. c Unsupervised hierarchical clustering of sRNA profiling data. sRNA intensity is normalized so that blue represents low intensity and yellow represents high intensity. Columns are hierarchically clustered based on a complete linkage using Pearson correlation coefficients as the distance measure. Sample groups including acutely infected rabbits, chronically infected rabbits and uninfected control rabbits are labeled as AI, CI and Con, respectively