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Table 2 Effect of aphid genotype and resistance phenotype on fecundity and longevity

From: Aphid-encoded variability in susceptibility to a parasitoid

  Aphid fecundity (Cumulative) Aphid longevity
  (A) Aphid line (B) Resistance (C) Aphid line (D) Resistance
  Df F-Value P-Value Df F-Value P-Value Df F-Value P-Value Df F-Value P-Value
Day 3 - - - - - - 5,42 0.71 0.6220 1,42 0.06 0.8047
Day 6 - - - - - - 5,42 0.71 0.6226 1,42 0.49 0.4885
Day 9 5,39.1 10.38 < 0.0001* 1,4.27 0.11 0.7593 5,42 0.64 0.6680 1,42 0.76 0.3893
Day 12 5,40.5 3.70 0.0075* 1,5.75 0.43 0.5384 5,42 1.30 0.2830 1,42 1.06 0.3090
Day 15 5,41.9 5.68 0.0004* 1,8.82 0.57 0.4691 5,42 2.17 0.0758 1,42 1.92 0.1728
Day 18 5,44.4 8.60 < 0.0001* 1,11.9 0.69 0.4214 5,42 0.95 0.4562 1,42 0.86 0.3595
Day 21 5,47.5 7.43 < 0.0001* 1,11.9 1.03 0.3310 5,42 1.15 0.3498 1,42 0.82 0.3709
Day 24 5,49.7 6.21 0.0002* 1,12.2 1.25 0.2859 5,42 2.24 0.0680 1,42 1.32 0.2568
  1. Analysis of (A) the effect of aphid line on cumulative fecundity (linear mixed model), (B) the effect of resistance to parasitism on cumulative fecundity (linear mixed model), (C) the effect of aphid line on aphid longevity (repeated measures MANOVA), (D) the effect of aphid resistance on longevity (repeated measures MANOVA). Six aphid genotypes were analyzed, three susceptible and three resistant to parasitism. Note: Aphid offspring were not present until day nine. Significant values are indicated with an asterisk. See Figure 2 for graphs of analyses.