Figure 2.

Tomato cv Motelle (Mo) plants overexpressing SlSERK1-HA (Mo/35S-SlSERK1-HA) are more resistant to potato aphids than wild-type Motelle. Aphid survival (A) and fecundity (B) on tomato cv Motelle 35S-SlSERK1-HA, the wild-type cv Motelle, and near isogenic susceptible cv Moneymaker (MM). Aphid survival (C) and fecundity (D) on Motelle 35S-SlSERK1-HA and Motelle silenced for Mi-1.2 (TRV-Mi300) or empty vector control (TRV). Four age-synchronized 1-d-old adult aphids were caged on a single leaflet of 7-week-old plants. Two leaflets per plants were infested and four plants per genotype were used (n = 8). Aphid survival and fecundity were monitored on a daily basis until all aphids were dead on Motelle. Error bars indicate ±se. Experiments were performed three times with similar results. Data from a single experiment are presented. Different letters denote a significant difference at P < 0.05 (ANOVA).