First Report of <i>Tobacco ringspot virus</i> Infecting <i>Ajuga reptans</i> in Ohio

Fig. 2. PCR detection of TRSV from cDNAs synthesized from immunocaptured virions with RdRp-specific primers (Lane 1) and CP-specific primers (Lane 2). Water controls with RdRp primers (Lane 3), CP primers (Lane 4), and M13 plasmid primers (Lane 5). TSV CP clone used as a positive PCR control with M13 primers (Lane 6). M=1 Kb DNA ladder (250, 500, 750, 1000, and 1500 bp markers indicated). Electrophoresis was done in 0.8% agarose at 100 volts for 60 minutes in 1X TAE buffer. Gel was stained with ethidium bromide.

Image from Plant Health Progress article:
First Report of Tobacco ringspot virus Infecting Ajuga reptans in Ohio