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Table 4 Distribution of the L1014F mutation in mosquitoes surviving pyrethroid insecticide exposure in Kélo district.

From: Insecticide resistance in Anopheles gambiae from south-western Chad, Central Africa

kdr genotypea

Kélo

Bologo

Kolon

Total

 

An. gambiae S

(n = 21)

An. arabiensis

(n = 9)

An. gambiae S

(n = 9)

An. arabiensis

(n = 24)

An. gambiae M

(n = 1)

An. gambiae S

(n = 5)

An. arabiensis

(n = 16)

An. gambiae M

(n = 1)

An. gambiae S

(n = 35)

An. arabiensis

(n = 49)

SS

1

9

1

24

1

2

16

1

4

49

SR

2

0

1

0

0

0

0

0

3

0

RR

18

0

7

0

0

3

0

0

28

0

f(Kdr)b

90.5

0.0

83.3

0.0

0.0

60.0

0.0

0.0

84.3

0.0

  1. a SS: Homozygote for the 1014L susceptible (wild type) allele; RR: Homozygote for the L1014F resistant allele; RS: Heterozygote (1014L/L1014F).
  2. b Frequency of the L1014F mutation in mosquitoes that survived after 1 hour of exposure to pyrethroid insecticides.