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Geographic distribution of wolbachial infections in mosquitoes from Thailand

Itsanun Wiwatanaratanabutr1

  • 1Department of Plant Production Technology, Faculty of Agricultural Technology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.

Journal of Invertebrate Pathology
|May 11, 2013
PubMed

Insights

Wolbachia bacteria were found in 28 mosquito species across Thailand, including five previously unreported species. This widespread distribution highlights the prevalence of these bacterial endosymbionts in diverse mosquito populations.

Area of Science:

  • Microbiology
  • Entomology
  • Genetics

Background:

  • Wolbachia are intracellular bacteria that infect many arthropods.
  • These endosymbionts can influence host reproduction and evolution.
  • Understanding Wolbachia distribution is crucial for vector control and biological research.

Purpose of the Study:

  • To survey Wolbachia prevalence in various mosquito species across Thailand.
  • To identify mosquito species newly infected with Wolbachia.
  • To determine the geographic distribution of Wolbachia in Thai mosquitoes.

Main Methods:

  • Collected 1622 wild-caught mosquitoes from 74 species across six regions of Thailand.
  • Used gene amplification assays with wsp and groE primers to detect Wolbachia.
  • Analyzed infection rates in different mosquito genera and species.

Main Results:

  • Wolbachia were detected in 999 mosquitoes, representing 28 species.
  • Infections were found in major disease vector genera, excluding Anopheles.
  • Wolbachia were newly reported in five species: Aedes lineatopennis, Aedes vexans, Aedes vittatus, Culex pallidothorax, and Culex whitmorei.

Conclusions:

  • Wolbachia infections are widespread among mosquito species in Thailand.
  • The findings expand the known host range of Wolbachia in mosquitoes.
  • This widespread presence has implications for understanding mosquito biology and disease transmission.
Keywords:
DistributionEndosymbiontMosquitoThailandWolbachia

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