FIGURE 3.

Phosphorus (Pi) deficiency and miRNAs in C. oleifera. (A) Differential expressed miRNAs in five different low Pi treatment durations (CK, 1, 3, 7, and 30 days) by miRNAs hierarchical clustering. Red indicates higher levels of miRNAs and green indicates lower levels of miRNAs. The names of the samples are shown at the bottom. The original expression values of the miRNAs were normalized using Z-score normalization. The absolute signal intensity ranges from −1.5 to +1.5, with corresponding color changes from green to red. (B) The number of differentially expressed miRNAs under Pi deficiency compared with the control.