Figure 1From: Sugar metabolism, chip color, invertase activity, and gene expression during long-term cold storage of potato (Solanum tuberosum) tubers from wild-type and vacuolar invertase silencing lines of KatahdinTuber sugar contents. Sugar concentrations in WT (W) and RNAi (R) tubers with suppressed VInv expression stored for different lengths of time at 3, 5, 7, or 9°C. (A) Sucrose; (B) Glucose; (C) Fructose. Light purple bars represent the bud ends of WT tubers; dark purple bars, the stem ends of WT tubers; light green bars, the bud ends of RNAi tubers; and dark green bars, the stem ends of RNAi tubers. Bars show averages of samples from six (WT) or eighteen (RNAi) different tubers ± standard error. Tubers were harvested on October 1, 2010 and sampled in 2011.Back to article page