only marginally significantP = 0.1981
While this preferential settlement was only marginally significant for each plant genotype, Ler or Ll-0, when analyzed separately (F 1,40 = 1.72, P = 0.1981 and F 1,40 = 3.37, P = 0.0743 for Ler and Ll-0 respectively), it was significant when data from both genotypes were pooled together (F 1,80 = 4.86, P = 0.0304), indicating that virus infection reduced aphid preference after 24 h.