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Table 1 The frequency of kdr mutations (S989P + V1016G and F1534C) in Aedes aegypti from Saudi Arabia compared with Southeast Asia

From: Molecular analysis of knockdown resistance (kdr) mutations in the voltage-gated sodium channel gene of Aedes aegypti populations from Saudi Arabia

Domain

Codon

Nucleotide

AA

Designation

Saudi Arabia

Southeast Asia

Jazan (n = 71)

Sahil (n = 26)

Jeddah (n = 36)

Makkah (n = 28)

Madinah (n = 32)

Thailand (n = 40)

Myanmar (n = 24)

IIS6

989–1016

TCC/TCC-GTA/GTA

S/S-V/V

Homozygous wild type

39

13

9

8

12

17

20

989–1016

TCC/CCC-GTA/GGA

S/P–V/G

Heterozygous

23

12

8

12

12

16

2

989–1016

CCC/CCC-GGA/GGA

P/P-G/G

Homozygous mutant

9

1

19

8

8

7

2

   

Frequency of kdr allele (95% CI)

0.29 (0.139—0.343)

0.28 (0.124—0.480)

0.49 (0.462—0.787)

0.50 (0.311—0.689)

0.44 (0.268—0.621)

0.38 (0.232—0.542)

0.23 (0.033—0.335)

IIIS6

1534

TTC/TTC

F/F

Homozygous wild type

9

6

6

6

8

9

16

1534

TTC/TGC

F/C

Heterozygous

35

8

21

14

12

17

7

1534

TGC/TGC

C/C

Homozygous mutant

27

12

9

8

12

14

1

   

Frequency of kdr allele (95% CI)

0.63 (0.441—0.679)

0.63 (0.407—0.790)

0.54 (0.370—0.705)

0.54 (0.342—0.711)

0.56 (0.379—0.731)

0.56 (0.398—0.715)

0.19 (0.066—0.404)

  1. AA Amino acid, S Serine, V Valine, P Proline, G Glycine, F Phenylalanine, C Cysteine, CI Confidence intervals