GEPHE SUMMARY
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Gephebase Gene
Entry Status
Published
GepheID
GP00002524
Main curator
Courtier
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Culex quinquefasciatus
Trait State in Taxon B
Culex quinquefasciatus - resistant
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Latin Name
Common Name
southern house mosquito
Synonyms
Culex fatigans; Culex pipiens fatigans; Culex pipiens quinquefasciatus; southern house mosquito; Culex fatigan; Culex pipiens quiquefasciatus; Culex quinquifasciatus; Culex quinquifasiatus; Culex quiquefasciatus
Rank
species
Lineage
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lata; Pancrustacea; Hexapoda; Insecta; Dicondylia; Pterygota; Neoptera; Holometabola; Diptera; Nematocera; Culicomorpha; Culicoidea; Culicidae; Culicinae; Culicini; Culex; Culex; Culex pipiens complex
NCBI Taxonomy ID
is Taxon A an Infraspecies?
No
Taxon B
Latin Name
Common Name
southern house mosquito
Synonyms
Culex fatigans; Culex pipiens fatigans; Culex pipiens quinquefasciatus; southern house mosquito; Culex fatigan; Culex pipiens quiquefasciatus; Culex quinquifasciatus; Culex quinquifasiatus; Culex quiquefasciatus
Rank
species
Lineage
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lata; Pancrustacea; Hexapoda; Insecta; Dicondylia; Pterygota; Neoptera; Holometabola; Diptera; Nematocera; Culicomorpha; Culicoidea; Culicidae; Culicinae; Culicini; Culex; Culex; Culex pipiens complex
NCBI Taxonomy ID
is Taxon B an Infraspecies?
No
GENOTYPIC CHANGE
Generic Gene Name
para
Synonyms
bas; bss; CG9907; Dmel\CG9907; DmNav; DmNav1; DmNa[[v]]; DmNa[[V]]; DmNa[[v]]1; l(1)14Da; l(1)ESHS48; lincRNA.S9469; Nav1; Ocd; olfD; par; sbl; sbl-1; Shu; Shudderer
String
Sequence Similarities
Belongs to the sodium channel (TC 1.A.1.10) family. Para subfamily.
GO - Molecular Function
GO:0005509 : calcium ion binding
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GO - Biological Process
GO - Cellular Component
GO:0005887 : integral component of plasma membrane
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UniProtKB
Drosophila melanogaster
Drosophila melanogaster
Presumptive Null
Molecular Type
Aberration Type
SNP Coding Change
Nonsynonymous
Molecular Details of the Mutation
L1014F
Experimental Evidence
Taxon A | Taxon B | Position | |
---|---|---|---|
Codon | - | - | - |
Amino-acid | - | - | - |
Main Reference
Authors
Xu Q; Liu H; Zhang L; Liu N
Abstract
Two mosquito strains of Culex quinquefasciatus (Say), MAmCq(G0) and HAmCq(G0), were collected from Mobile and Huntsville, Alabama, respectively. MAmCq(G0) and HAmCq(G0) were further selected in the laboratory with permethrin for one and three generations, respectively. The levels of resistance to permethrin in MAmCq(G1) (after one-generation selection) and HAmCq(G3) (after three-generation selection) increased rapidly. Resistance to permethrin in MAmCq(G1) and HAmCq(G3) was partially suppressed by piperonyl butoxide (PBO), S,S,S-tributylphosphorotrithioate (DEF) and diethyl maleate (DEM), inhibitors of cytochrome P450 monooxygenases, hydrolases and glutathione S-transferases (GST), respectively, suggesting these three enzyme families are important in conferring permethrin resistance in both strains. A substitution of leucine to phenylalanine (L to F) resulting from a single nucleotide polymorphism (SNP), termed the kdr mutation, in the para-homologous sodium channel gene has been reported as a very common mutation associated with pyrethroid resistance of insects. A 341-bp sodium channel gene fragment, where the kdr mutation resides, was generated by PCR from genomic DNAs of Cx. quinquefasciatus strains. We found that the kdr mutation was present in both permethrin-selected and unselected HAmCq and MAmCq mosquito populations, suggesting that the kdr mutation plays the role in permethrin resistance. There was no significant change in the frequency and heterozygosity of the A to T SNP for the kdr allele between permethrin-selected and unselected MAmCq and HAmCq mosquitoes, indicating that other mechanisms are involved in the evolution of resistance in mosquitoes selected by permethrin in the laboratory.
Copyright 2005 Society of Chemical Industry.
Copyright 2005 Society of Chemical Industry.
Additional References
RELATED GEPHE
Related Genes
Related Haplotypes
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