Figure 3.
Northern blot analysis of the expression of known miRNAs from zebrafish. (A) Expression of miRNAs in five developmental stages: 24 h, 48 h, 72 h, 5 days and adult zebrafish. (B) Expression of miRNAs in RNA derived from 10 adult zebrafish tissues: total, brain, eye, muscle, gills, fins, skin, liver, gut and heart. For some miRNAs we did not analyze the expression in the heart, because we could not obtain enough heart tissue for analyzing all the miRNAs by northern blotting. U6 snRNA serves as a loading control.