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Table 4 Genotyping results of the voltage-gated sodium channel gene at 1534 codon and association with resistance to DDT in five Aedes albopictus populations in Guangzhou, China. The significance threshold is P < 0.01 after Bonferroni correction for multiple testing

From: Evidence for multiple-insecticide resistance in urban Aedes albopictus populations in southern China

Area Population Phenotype n Genotype Odds ratio (95% CI) P–value of Fisher’s exact probability test
FF FS SS FL LL LS F1534S F1534 L F1534S F1534 L
Urban UBT R 28 2 11 12 1 0 2 1.9 (0.94–3.96) 1.9 (0.38–9.34) 0.052 0.353
S 46 15 9 18 1 0 3     
UYS R 39 5 9 7 6 1 11 2.3 (1.19–4.59) 2.2 (1.00–4.86) 0.010 0.040
S 52 13 19 3 10 1 7     
Suburban SBL R 10 3 6 1 0 0 0 0.9 (0.31–2.51) na 0.519 0.542
S 29 11 9 7 1 0 1     
SPX R 10 0 1 8 0 0 1 4.2 (0.50–34.24) 2.0 (0.11–37.83) 0.143 0.589
S 35 5 2 22 0 0 6     
Rural RCD R 13 8 3 2 0 0 0 1.0 (0.37–2.72) na 0.587 0.346
S 43 22 16 1 0 0 4     
  1. Abbreviations: F wildtype F1534 allele, S F1534S allele, L F1534 L, R resistant, S susceptible, na not applicable, FF homozygous phenylalanine/phenylalanine, FS heterozygotes phenylalanine/ leucine, SS homozygous serine/serine, FL heterozygotes phenylalanine/ leucine, LL homozygous leucine/ leucine, SL heterozygotes serine/leucine