Figure 3. Transmission efficiency of CYDV-RPV by individual F1 genotypes (listed on the X-axis) from a cross of Sg-C females and Sg-F males (CxF) or Sg-F females and Sg-C males (FxC). The mean transmission efficiency and standard error for each F1 genotype was calculated as the percentage of plants infested with viruliferous aphids that became infected following a 96 hr inoculation access period. The number of recipient plants used in each experiment was 12 to 16 and each genotype was tested in 2 to 4 experiments.