Fig. 4

miRNA–target gene network. Network of miRNAs and their target genes at 4 h after C. parvum infection (a). Network of miRNAs and target genes at 12 h after C. parvum infection (b). Network of the key miRNAs and target genes at 12 h after C. parvum infection (c). In the diagram of the miRNA–gene network, the ellipses represent the miRNAs, the rectangles represent the target genes, and triangles represent the key target genes, with the interaction between them are represented by lines. The crucial miRNAs has the highest connectivity which refers to the number of edges possessed by one miRNA. The key genes are the common target genes of differentially expressed miRNAs