Northern blot analyses of TMV RNA (A), CMV RNA (B), TMV siRNA (C), or CMV siRNA (D) of T4 transgenic plants before inoculation (-) or after inoculation with TMV or CMV. Wild type plant (wt) was used as a control. The size of the marker DNA oligomers (24nts) was presented on the left. The lower panel shows the loading level of each RNA sample by ethidium bromide staining.
Hu et al. Virology Journal 2011 8:41 doi:10.1186/1743-422X-8-41