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Table 2 Variation in phenoloxidase activity of adult female and male Culex pipiens mosquitoes according to insecticide resistance genotype (IR), age and size

From: Patterns of phenoloxidase activity in insecticide resistant and susceptible mosquitoes differ between laboratory-selected and wild-caught individuals

  (a) Isogenic mosquitoes (b) Wild mosquitoes
  Active PO Total PO Active PO
Factor F (df) P F (df) P F (df) P
Females       
IR 3.22 (2, 525) 0.0409 2.62 (2, 525) 0.0735 0.27 (2, 348) 0.7658
Age 67.99 (2, 525) < 0.0001 47.62 (2, 525) < 0.0001 25.79 (2, 348) < 0.0001
Size 0.02 (1, 525) 0.8845 4.19 (1, 525) 0.0412 12.13 (1, 348) 0.0006
IR*age 2.66 (4, 525) 0.0319 3.39 (4, 525) 0.0094 0.45 (4, 348) 0.7756
Males       
IR 10.71 (2, 525) < 0.0001 10.29 (2, 525) < 0.0001 3.22 (2, 371) 0.0409
Age 40.31 (2, 525) < 0.0001 42.32 (2, 525) < 0.0001 24.71 (2, 371) < 0.0001
Size 12.64 (1, 525) 0.0004 19.85 (1, 525) < 0.0001 5.25 (1, 371) 0.0225
IR*age 4.07 (4, 525) 0.0029 2.90 (4, 525) 0.0215 2.41 (4, 371) 0.0490
  1. (a) Experiment 1 using isogenic strain mosquitoes. (b) Experiment 2 using wild mosquitoes.