First report of L1014F kdr mutation in Culex quinquefasciatus in Mexico

2015 ◽  
Vol 23 (6) ◽  
pp. 829-834 ◽  
Author(s):  
Gustavo Ponce ◽  
Iram P. Sanchez ◽  
Selene M. García ◽  
Jose M. Torrado ◽  
Saúl Lozano-Fuentes ◽  
...  
Keyword(s):  
Culex Quinquefasciatus ◽  
Kdr Mutation ◽  
First Report ◽  
L1014f Kdr

scholarly journals First report of L1014F-kdr mutation in Culex pipiens complex from Morocco

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Meriem Bkhache ◽  
Fatim-Zohra Tmimi ◽  
Omar Charafeddine ◽  
Chafika Faraj ◽  
Anna-Bella Failloux ◽  
...  
Keyword(s):  
Culex Pipiens ◽  
Kdr Mutation ◽  
First Report ◽  
Culex Pipiens Complex ◽  
L1014f Kdr

Susceptibility to Pyrethroids and the First Report of L1014F kdr Mutation in Culex quinquefasciatus (Diptera: Culicidae) in Colombia

2020 ◽  
Vol 57 (6) ◽  
pp. 1830-1834
Author(s):  
Ronald Maestre-Serrano ◽  
Juan Lara-Cobos ◽  
Doris Gomez-Camargo ◽  
Gustavo Ponce-Garcia ◽  
Paula Pareja-Loaiza ◽  
...  
Keyword(s):  
Culex Quinquefasciatus ◽  
Pyrethroid Resistance ◽  
Resistance Mechanism ◽  
Genotypic Frequency ◽  
Kdr Mutation ◽  
Knockdown Resistance ◽  
Low Resistance ◽  
L1014f Kdr ◽  
Susceptible Control ◽  
Moderate Resistance

Abstract The use of insecticides for the control of Aedes aegypti (L.) (Diptera: Culicidae) in Colombia has indirectly influenced the susceptibility status of Culex quinquefasciatus Say populations. We evaluated pyrethroid susceptibility in two populations of Cx. quinquefasciatus in the Atlantico Department of Colombia and its possible resistance mechanism (kdr mutation). Bottle bioassays were performed for permethrin, deltamethrin, and λ-cyhalothrin in female mosquitoes of Cx. quinquefasciatus. The resistance ratios (RRs) for KC50 and LC50 for each insecticide in the field populations examined were determined, using the Cartagena strain as the susceptible control. The L1014F kdr mutation was identified in the para gene of the voltage-gated sodium channel (vgsc), along with its allelic and genotypic frequency. Low knockdown resistance (RRKC50) to deltamethrin was found in Puerto Colombia and Soledad populations as well as low resistance to λ-cyalothrin in this latter population. Moderate knockdown resistance to permethrin was found in both populations. At 24 h post-exposure on the other hand, there was low resistance (RRLC50) to permethrin in Puerto Colombia and moderate resistance in Soledad. Moderate resistance to deltamethrin was found in Puerto Colombia and low resistance in Soledad. Low resistance to λ-cyhalothrin was seen in Puerto Colombia and moderate resistance in Soledad. Variability was found in the susceptibility to the pyrethroids in the populations of Cx. quinquefasciatus evaluated, and the L1014F kdr mutation is reported for the first time as a possible pyrethroid resistance mechanism in this species in Colombia.

scholarly journals Development and application of a tri-allelic PCR assay for screening Vgsc-L1014F kdr mutations associated with pyrethroid and organochlorine resistance in the mosquito Culex quinquefasciatus

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Walter Fabricio Silva Martins ◽  
Bárbara Natieli Silva Pereira ◽  
Ana Thayse Vieira Alves ◽  
Annabel Murphy ◽  
Paulo Geovani Silva Martins ◽  
...  
Keyword(s):  
Culex Quinquefasciatus ◽  
Pcr Assay ◽  
L1014f Kdr

scholarly journals Surveillance of a kdr Resistance Mutation in Culex pipiens (Diptera: Culicidae) and Culex quinquefasciatus in California

2019 ◽  
Vol 57 (2) ◽  
pp. 645-648 ◽  
Author(s):  
Melissa Hardstone Yoshimizu ◽  
Kerry Padgett ◽  
Vicki Kramer
Keyword(s):  
Allele Frequency ◽  
Culex Quinquefasciatus ◽  
Disease Transmission ◽  
Culex Pipiens ◽  
Pyrethroid Resistance ◽  
Resistance Mutation ◽  
Resistance Allele ◽  
Resistant Allele ◽  
L1014f Kdr ◽  
Control Adult

Abstract Culex pipiens Linnaeus and Culex quinquefasciatus Say are the primary vectors of West Nile and St. Louis encephalitis viruses in California. Pyrethrins and pyrethroids (synthetic pyrethrins) are the most widely used insecticides to control adult stage mosquitoes to prevent disease transmission. The most abundant and widespread mutation associated with pyrethroid resistance is the L1014F mutation of the voltage-sensitive sodium channel gene. Statewide, based on the testing of almost 2,000 mosquitoes from 14 counties, the resistant allele frequency was 71%. Although the L1014F mutation was found in all counties assessed, the resistance allele profiles differed between regions of California. The highest resistant allele frequency occurred in the Central region and lowest frequencies were from the Northern and Southern regions. Resistance allele frequencies observed in 2014–2016 are nearly 1.5 times higher than those from pre-2012, indicating that resistance profiles can change over time. Regular monitoring of the L1014F kdr mutation will help aid in operational decisions.

scholarly journals First report of Rdl mutant alleles in Culex quinquefasciatus (Diptera: Culicidae) in Malaysia

2021 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
Van Lun Low ◽  
ZhengHua Amelia-Yap ◽  
TiongKai Tan ◽  
BatahKunalan Prakash ◽  
CheeDhang Chen ◽  
...  
Keyword(s):  
Culex Quinquefasciatus ◽  
First Report

scholarly journals A list of mosquito species of the Brazilian State of Pernambuco, including the first report of Haemagogus janthinomys (Diptera: Culicidae), yellow fever vector and 14 other species (Diptera: Culicidae)

2010 ◽  
Vol 43 (4) ◽  
pp. 458-459 ◽  
Author(s):  
Nádia Consuelo Aragão ◽  
Gerson Azulim Müller ◽  
Valdir Queiroz Balbino ◽  
César Raimundo Lima Costa Junior ◽  
Carlos Santiago Figueirêdo Júnior ◽  
...  
Keyword(s):  
Yellow Fever ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Yellow Fever Virus ◽  
Mosquito Species ◽  
Urban Environments ◽  
The State ◽  
First Report ◽  
Human Landing ◽  
Veterinary Importance

INTRODUCTION: Besides mosquito species adapted to urban environments (Culex quinquefasciatus, Aedes aegypti and Aedes albopictus), only 15 species of Anopheles had been recorded in the State of Pernambuco. METHODS: Human-landing mosquitoes were collected in Dois Irmãos Park, in Recife. RESULTS: The first report for the state of Haemagogus janthinomys, an important vector of yellow fever virus, and 14 other species, including Trichoprosopon lampropus, a first reported for Brazil. CONCLUSIONS: The mosquito fauna in the area is diversified and has potential medical and veterinary importance.

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