Figure 1.

AtPMEI4 and AtPMEI9 partially overlap in their expression patterns. Relative expression is shown for AtPMEI4 and AtPMEI9 genes in several organs of Arabidopsis Columbia-0 (Col-0). Roots (black bars) and etiolated hypocotyls (gray bars) were from in vitro-grown Col-0 seedlings, while adult leaves (dotted bars), stems (diagonally striped bars), siliques (bricked bars), floral buds (diagonally bricked bars), and mature seeds (horizontally striped bars) were from Col-0 plants grown on soil. Relative gene expression was measured using stably expressed reference genes (CLA and PEX4) with similar results. Only the results obtained with CLA are shown.