Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12870-016-0799-z/MediaObjects/12870_2016_799_Fig4_HTML.gif)
Northern blot analysis of BrmiR156, BrmiR167 and BrmiR159 in seedlings of Tsuda after exposure to dark, blue light or UV-A. 5′-Digoxigenin-labeled DNA oligonucleotide with complementary sequence to miRNA was used as the probe; BrU6 was used as the control. The gray level ratio between miRNAs and BrU6 was used to compare relative expression to normalized reads