Figure 4

Relative expression of PA genes in parental and F1 hybrid plants. (a to i) leaves. (j to r) stems. Expression was determined by real-time RT-PCR analysis using EF-1α as the housekeeping gene. Ct value of L. tenuis leaves was arbitrarily selected as reference. Samples are as in Figure 2. Means with similar letter do not differ significantly (p < 0.05), bars indicate standard deviation of mean values.