ArticleGenetics2025
A single mutation G454A in the P450 CYP9K1 drives pyrethroid resistance in the major malaria vector Anopheles funestus reducing bed net efficacy.
Article in Genetics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed.
- Dynamics modelling and control strategies of malaria transmission interruption by antimalarial-treated nets.Infectious Disease Modelling · 2027Article
- Modelling the impact of adopting new-generation insecticide-treated nets on malaria transmission and insecticide resistance.Parasites & vectors · 2026Article
- Synergistic action of different molecular mechanisms causes striking levels of insecticide resistance in the malaria vectorProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Signature of resistance gene evolution and pyrethroid resistance escalation in the major malaria vector Anopheles funestus across Kenyan malaria-endemic regions separated by the Rift Valley.Infectious diseases of poverty · 2026Article
- Transcriptomic signatures of high‑intensity pyrethroid resistance in Anopheles gambiae from a Cameroonian agricultural hotspot.BMC genomics · 2026Article
- The genomics of insecticide resistance in Anopheles funestus: insights from a large bed-net trial.BMC genomics · 2026Article
- Spatial and temporal signatures of genomic insecticide resistance in the Anopheles arabiensis mosquito malaria vector from Ethiopia.Research square · 2026Article
- Four-year monitoring of the malaria vector Anopheles funestus in central-west Cameroon reveals an escalation of pyrethroid resistance combined with high malaria transmission.BMC infectious diseases · 2026Article
- Chlorfenapyr bednets effectively overcome pyrethroid resistance escalation in highly resistant Anopheles malaria vectors in Uganda.Scientific reports · 2026Article
- Complex Roles of Insect Cytochrome P450s in Chemical Adaptation.International journal of biological sciences · 2026Review
- Spatial Heterogeneity ofJournal of parasitology research · 2026Review
- PoolSeq Genome-Wide Association Studies and Microbial Signature Analyses Identify Novel Candidates Associated With Pyrethroid Resistance Evolution in Anopheles funestus in Cameroon.Molecular ecology · 2026Article
- Distinct Genetic Footprint of Adaptation Observed WithinResearch and reports in tropical medicine · 2026Article
- Genetic isolation drives divergent insecticide resistance between coastal and western Kenya Anopheles funestus populations.Scientific reports · 2025Article
- Genomic Drivers of Pyrethroid Resistance Escalation in the Malaria Vector Anopheles funestus Across Africa.Molecular biology and evolution · 2025Article
- Characterizing the escalation of pyrethroid resistance and its impact on bed nets efficacy alongside molecular basis in Anopheles funestus from Cameroon.Malaria journal · 2025Article
- Article
- An atlas of positive selection in the genomes of major malaria vectors.bioRxiv : the preprint server for biology · 2025Article
- Evidence of microbiome contribution to the escalation of pyrethroid resistance in the major malaria vectors Anopheles gambiae s.s. and Anopheles funestus s.s.BMC microbiology · 2025Article
- Signatures of selection and mechanisms of insecticide resistance in UgandanbioRxiv : the preprint server for biology · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
Abstract
Metabolic mechanisms conferring pyrethroid resistance in malaria vectors are jeopardizing the effectiveness of insecticide-based interventions, and identification of their markers is a key requirement for robust resistance management. Here, using a field-lab-field approach, we demonstrated that a single mutation G454A in the P450 CYP9K1 is driving pyrethroid resistance in the major malaria vector Anopheles funestus in East and Central Africa. Drastic reduction in CYP9K1 diversity was observed in Ugandan samples collected in 2014, with the selection of a predominant haplotype (G454A mutation at 90%), which was completely absent in the other African regions. However, 6 years later (2020) the Ugandan 454A-CYP9K1 haplotype was found predominant in Cameroon (84.6%), but absent in Malawi (Southern Africa) and Ghana (West Africa). Comparative in vitro heterologous expression and metabolism assays revealed that the mutant 454A-CYP9K1 (R) allele significantly metabolizes more type II pyrethroid (deltamethrin) compared with the wild G454-CYP9K1 (S) allele. Transgenic Drosophila melanogaster flies expressing 454A-CYP9K1 (R) allele exhibited significantly higher type I and II pyrethroids resistance compared to flies expressing the wild G454-CYP9K1 (S) allele. Furthermore, laboratory testing and field experimental hut trials in Cameroon demonstrated that mosquitoes harboring the resistant 454A-CYP9K1 allele significantly survived pyrethroids exposure (odds ratio = 567, P < 0.0001). This study highlights the rapid spread of pyrethroid-resistant CYP9K1 allele, under directional selection in East and Central Africa, contributing to reduced bed net efficacy. The newly designed DNA-based assay here will add to the toolbox of resistance monitoring and improving its management strategies.
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.