Fig. 5From: Nitrate/ammonium-responsive microRNA-mRNA regulatory networks affect root system architecture in Populus × canescensDegradation effect of miRNAs on target genes. In the graph, validation of ptc-miR169i-NFYA3 (a) and ptc-miR166b-eIF (b) using transient coexpression assays in N. benthamiana leaves. The expression levels were quantified using qRT–PCR. Bars indicate means ± SE (n = 4). Different letters on the error bars indicate significant differencesBack to article page