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Table 1 Frequencies of the Ace-1R allele and genotypes in the An. gambiae s.l. samples collected in 2019 from nine localities in Cameroon

From: Distribution of acetylcholinesterase (Ace-1R) target-site G119S mutation and resistance to carbamates and organophosphates in Anopheles gambiae sensu lato populations from Cameroon

Locality

Number analysed

Species (number)

Ace-1 mutation genotypes

Allelic frequency

RR

RS

SS

R

S

Bertoua

188

An. gambiae (17)

7/17 (41.18%)

0

10/17 (58.82%)

0.41

0.59

An. coluzzii (171)

0

0

171/171 (100%)

0

1

Ebolowa

150

An. coluzzii (150)

0

0

150/150 (100%)

0

1

Edéa

155

An. gambiae (67)

2/67 (3%)

0

65/67 (97%)

0.03

0.97

An. coluzzii (88)

0

0

88 (100%)

0

1

Bonaberi

63

An. gambiae (22)

0

0

22 (100%)

0

1

An. coluzzii (41)

0

0

41 (100%)

0

1

Gounougou

178

An. arabiensis (68)

0

0

68 (100%)

0

1

An. coluzzii (110)

0

 

110 (100%)

0

1

Mangoum

252

An. gambiae (252)

88/252 (35%)

6/252 (2.3%)

158/252 (62.7%)

0.36

0.64

Nyabessang

145

An. gambiae (145)

7/145 (4.8%)

0

138 (95.2%)

0.05

0.95

Nkolbisson

61

An. gambiae (47)

9/47 (19.2%)

0

38/47 (80.8%)

0.15

0.85

An. coluzzii (14)

0

0

14 (100%)

0

1

Simatou

81

An. coluzzii (81)

0

0

81(100%)

0

1

  1. RR homozygote-resistant, RS heterozygote-resistant, SS homozygote-susceptible