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Table 1 Competitiveness index of different ratios of F8 WAG males measured at different ratios of RAG males in semi-field conditions

From: Establishment of Wolbachia infection in Aedes aegypti from Pakistan via embryonic microinjection and semi-field evaluation of general fitness of resultant mosquito population

Male ratio WAG:RAG

♂ × ♀ WAG:RAG × RAG

Egg hatcha (n eggs)

Hc-Hr

Hr-Hi

Cm/In

Competitiveness indexb

0:1

0:40 × 30

Hc

91.7% ± 5.1a

(1684)

Negative control group

1:1

20:20 × 30

Hr

56.5% ± 8.1b

(1411)

35.2 ± 11.8

56.5 ± 8.1

1

0.63 ± 0.3

3:1

30:10 × 30

Hr

18.3% ± 5.9c

(1595)

73.4 ± 11.0

18.3 ± 5.9

0.33

1.38 ± 0.6

1:0

40:0 × 30

Hi

0.0% ± 0.0d

(1338)

Positive control group

  1. All values are given as ± standard error of the mean of triplicate measures
  2. RAG Uninfected Aedes aegypti (control), TWAG wAlbB Wolbachia removed by tetracycline, WAG wAlbB Wolbachia-transfected colony treatment
  3. aDifferent lowercase letters indicate that the values are statistically different (P < 0.05) in all crosses using Tukey mean procedure test
  4. b\(\mathrm{Competitiveness index}=\frac{Hc-Hr}{Hr-Hi }\times \frac{Cm}{In}\), where Hc = hatch rate of eggs harvested from the cross RAG♂ × RAG♀ (compatible); Hr = hatch rate of eggs harvested from the cross WAG:RAG♂ × RAG♀; Hi = hatch rate of eggs harvested from the cross WAG♂ × RAG♀ (incompatible); Cn = number of compatible males (RAG); In = number of incompatible males (WAG)