<i>PtaJAZ3</i> and <i>PtaRAP2</i>.<i>6</i> overexpression affects root growth in response to PEG-induced drought stress.

(a) Root growth of PtaJAZ3 and PtaRAP2.6 overexpressing transgenics in comparison with those of WT-717 in both control (darker bars) and PEG (lighter bars) media. Three independent lines (four replicates per line, see S3 Fig) were measured for calculating the values of each transgenic modification that is shown as mean ± standard error of mean (SEM) (n = 3). Different letters represent means that are statistically different (Pmaterials and methods).