Fig. 2. Histograms indicating the number of outer epidermal cells in the valve and replum of several wild-type and mutant Arabidopsis lines. (A) Replum; (B) valve. Numbers inside the bars represent the mean number of cells, and lines on top represent standard deviations. Fruits from at least five plants for each genotype were collected for cell counting. At least 20 valves and 20 repla were counted for each line.