Figure 1.

Chloroplast areas in the 22 Arabidopsis accessions used as parents in the construction of 12 RIL populations and the Ler-0 × Cvi-1 NIL population. Accession names shown are those used in the ABRC stock information (see Supplemental Tables S1 and S2). Black bars highlight the comparison between Cvi-1 and the Ler-2 RIL parent or Ler-0 NIL parent. The asterisk (*) denotes a different Ler-0 genetic background (CS9994) from that of the other Ler-0 shown on the graph (CS-20). Plants were grown at a light intensity of 100 µmol m⁻² s⁻¹ with a 12-h light period. Samples for imaging were taken from leaf 6 harvested from 40-d-old plants. Error bars indicate the SE. Sample sizes are described in the “Experimental Design” and “Sampling and Microscopy” sections of “Materials and Methods.”