Fig. 3.
Northern blots of small RNAs extracted from mock and CMV-inoculated tomato plants at 20 dpi
5S rRNA stained with ethidium bromide was used as loading control. The graph shows the calculated absolute fold changes between mock and CMV-inoculated samples at 20 dpi deduced from Northern blotting after quantification by a Phosphor-Imager and microarray data analysis