Figure 1

Expression profiles of candidate imprinted genes in Arabidopsis thaliana seed as determined by qRT-PCR. 1A. Expression of AtCDC48A, MS5-like and PDE120 increases though Col-0 seed development at 3 dap (left-hand columns), 4 dap (middle columns) and 5-6 dap (right-hand columns) 1B. Expression of AtCDC48A, MS5-like and PDE120 increases though Ler-0 seed development at 3 dap (left-hand columns), 4 dap (middle columns) and 5-6 dap (right-hand columns) 1C. PDE120 is expressed in hybrid seeds in similar patterns to non-hybrid seeds. Determined at 3, 4 and 5-6 dap for Col-0 × Ler-0 (first 3 columns) and Ler-0 × Col-0 (second three columns). 1D. AtCDC48A and PDE120 are expressed only at low levels in ovules of Col-0 (left-hand columns) or Ler-0 (middle columns) compared to Col-0 4 dap seed (right-hand columns). Standard errors are shown.