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Table 2 Double blind trial to compare results SSOP-ELISA for kdr genotyping to results of standard multiplex PCR methods using control strains of known genotype (L, Dondotha/R70; F, VKPR; S, RSP) as individuals or in mixtures.

From: Occurrence of the leucine-to-phenylalanine knockdown resistance (kdr) mutation in Anopheles arabiensis populations in Tanzania, detected by a simplified high-throughput SSOP-ELISA method

Test Sample

Genotype results by method

Genotype(Strain)

SSOP-ELISA

Multiplex PCR

  

East African kdr1

West African kdr2

L(Dond)+F(VKPR)

L/F

L

L/X

L(Dond)+S(RSP)

L/S

X/S

L

F(VKPR)

F

--

F

field sample

L

L

L

S(RSP)

S

S

--

L(Dond)

L

L

L

F(VKPR)+S(RSP)

F/S

S

F

L(R70)+F(VKPR)

L/F

L

L/F

L(R70)+S(RSP)

L/S

X/S

L

L(R70)

L

L

L

F(VKPR)

F

--

F

S(RSP)

S

S

--

  1. 1method of Ranson et al. (2000); L = susceptible band present, S = kdr band present
  2. 2method of Martinez-Torres et al. (1998); L = susceptible band present, F = kdr band present
  3. -- = band absent (genotype does not correspond to kdr-specific detection method)
  4. X = band absent (genotype not detected by corresponding method)