Multiplexed amplicon sequencing reveals the heterogeneous spatial distribution of pyrethroid resistance mutations in Aedes albopictus mosquito populations in southern France
2024

Resistance in Mosquitoes: A Study on Aedes albopictus in France

Sample size: 547 publication 10 minutes Evidence: moderate

Author Information

Author(s): Fontaine Albin, Mignotte Antoine, Lacour Guillaume, Nguyen Agnès, Gomez Nicolas, Chanaud Lionel, L’Ambert Grégory, Briolant Sébastien

Primary Institution: Unité des Virus Émergents (UVE: Aix-Marseille Univ, Università di Corsica, IRD 190, Inserm 1207, IRBA), Marseille, France

Hypothesis

What is the spatial distribution of pyrethroid resistance mutations in Aedes albopictus populations in southern France?

Conclusion

The study found that the V1016G allele, associated with pyrethroid resistance, is predominantly present in southeast France.

Supporting Evidence

  • The V1016G allele was found in 14 sites, mainly in southeast France.
  • All mosquitoes were heterozygous for the V1016G mutation, indicating they should not be phenotypically resistant.
  • Four other mutations were also identified in the study.

Takeaway

Scientists looked at mosquitoes in France to see if they were resistant to insect spray. They found some that were, especially in the southeast.

Methodology

The study used multiplexed amplicon sequencing to analyze mosquitoes collected from 95 sites across 61 municipalities in southern France.

Limitations

Some mutations identified in pooled DNA sequencing were not confirmed in individual mosquito sequencing, possibly due to contamination.

Participant Demographics

Mosquitoes were collected from various sites in southern France, including urban and rural areas.

Digital Object Identifier (DOI)

10.1186/s13071-024-06632-8

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