Figure 2.

The expression level analysis. (A) Heat-map of the correlation coefficient from all samples. The color in the panel represents the correlation coefficient of the two samples. The blue represents the two samples with a high correlation coefficient, and the white represents the low similarity of the two samples. (B) Primary component analysis: X, Y and Z axes represent the three main factors that affected the expression level of the sample. The colored point represents the corresponding sample, and its location shows the main character of the sample. The space distance represents the similarity of the data size. (C) Venn diagram based on the number of commonly expressed and specifically expressed tsRNAs. This diagram shows the number of tsRNAs which were expressed in both groups and also indicated the number of the specifically expressed tsRNAs. (D) Venn diagram based on the number of tsRNAs known and detected. This diagram shows the number of tsRNAs detected in this project and collected in the tRFdb.