Dynamics of multiple insecticide resistance in the malaria vector Anopheles gambiae in a rice growing area in South-Western Burkina Faso

Table 3 Variation in the frequency of the ace-1^Rmutation and the relative prevalence of the two molecular forms of Anopheles gambiae ss in VK7 in September and October 2005

	S form^a	ace-1 ^{R b}	F(R)^c	M form^a	ace-1 ^{R b}	F(R)^c
September	11 38%	1RR+6RS+4SS	0.36	18 62%	0RR+1RS+17SS	0.028
October	15 52%	0RR+11RS+4SS	0.37	14 48%	0RR+1RS+13SS	0.036
Total	26 45%	1RR+17RS+8SS	0.37	32 55%	0RR+2RS+30SS	0.031

^a Number of mosquitoes analysed, relative prevalence of molecular forms of An. gambiae (in percentage)
^b Genotype of the ace-1^Rmutation
^c Allelic frequency of the ace-1^Rmutation in mosquitoes analysed
[the relative prevalence between the M and S forms did not differ significantly during the two months, χ² = 1.06, df = 1, P > 0.05].

ISSN: 1475-2875