Fig. 1From: Identification and differential expression analysis of MicroRNAs encoded by Tiger Frog Virus in cross-species infection in vitro Length distribution of small RNAs derived from TFV-infected HepG2 and ZF4 cells. a Small RNAs derived from HepG2 cells; b small RNAs derived from ZF4 cells. The size of small RNAs ranges from 20Â nt to 25Â nt, and 22Â nt reads are the most abundant, which is suitable for miRNA analysisBack to article page