Figure 2.

Quantitative complementation test for the SO10.2 QTL. Shoot sulfate content (A), ATPS activity (B), and ATPS1 transcript accumulation (C) were measured for each of the four allelic combinations obtained in F1 plants, generated from the crossing of HIF004B (Bay) or HIF004S (Sha) to the atps1 mutant or its wild-type background (Col-0). Each data point is the mean ± se of eight individual F1 plants. The genotype interactions between the ATPS1 allele and SO10.2 was highly significant (P < 0.001), as was the interaction between the genotype and ATPS activity and ATPS1 transcript levels, marked by asterisks. FW, Fresh weight.