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. 2020 Jul 7;10:11139. doi: 10.1038/s41598-020-68014-1

Figure 4.

Figure 4

Northern blot analyses of T0 DvSSJ1 root samples. (A) Northern blots of eight DvSSJ1 dsRNA events and a non-transgenic control (NTC). A top diagram illustrates the dsRNA expression cassette. Zm-actin (Accession #: EU952376) was included as a reference gene for northern analysis (top panel). Plants containing 210 bp DvSSJ1 cassette expressed both long dsRNA transcripts (middle panel) and siRNAs (bottom panel). There were two long dsRNA bands representing full DvSSJ1 transcript (top arrow) and dsRNA hairpin (bottom arrow). (B) Northern blots of DvSSJ1 siRNA containing events and a non-transgenic control (NTC). Two separate artificial miRNA constructs were designed to express 21-bp DvSSJ1 siRNA-1 (TCCTTGATATCCGGTTCGGTA) and siRNA-2 (TAGTAGCCTTGATATCCGGTT). Exiqon LNA 5′ Biotin-labelled DNA probes (5 ng ml−1) were used for siRNA northern analyses and zm-miR168 was included as an internal control (Supplementary Table 3).