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. 2017 May 3;8:668. doi: 10.3389/fpls.2017.00668

Figure 1.

Figure 1

Cycle threshold (Ct) values of 10 candidate reference genes across all samples. The final Ct-value of each sample was the mean of three biological and technical replicates. Box graph indicates the interquartile range. A line across the box is shown as the median. Lower and upper dashes represent the minimum and maximum values, respectively; middle panes show the mean values. *Represents the extremum value.