Molecular analysis. Top, Southern analysis of lfsRNAi transgenic onion plants probed with gfp probe. Center, RNAi analysis of small RNA probed with lfs probe. Bottom, Quantitative RT-PCR measurement of lfs transcript compared with nontransgenic (NT). HN, ON, and DN indicate nontransgenic hybrid, open-pollinated, and dehydration control, respectively (stars); H1, H2, H3, O1, O2, O3, D1, and D2 represent specific transgenic hybrid, open-pollinated, and dehydration onion plants (circles). Far right lanes show one-, five-, and 10-copy control, respectively (on Southern-blot gel) and LFS sequence control (on RNAi gel). The 95% confidence limit is calculated from an ANOVA of logged data using the within-bulb variation. Data were log-transformed to adjust for variance heterogeneity between lines.