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Video Q&A ViewAttendees 1

Medical, Urban, and Veterinary Entomology

10-Minute Paper

MUVE: Mosquito and Other Fly Vectors Ecology and Behavior On-Demand Presentations

Genetic structure of Aedes aegypti in Sri Lanka reveals abundant gene flow among major commercial cities

On-Demand
On-Demand

    Presenting Author(s)

  • Sachini D. Fernando

    Lecturer (prob)
    University of Sri Jayewardenepura
    Nugegoda, Western Province, Sri Lanka

    • Co-Author(s)

  • MH

    Menaka Hapugoda

    Professor
    University of Kelaniya
    Kelaniya, Western Province, Sri Lanka

  • RP

    Rushika Perera

    Colorado State University
    Fort Collins, Colorado

  • WB

    William Black

    Colorado State University
    Fort Collins, Colorado

  • ND

    Nissanka De Silva

    Professor
    University of Sri Jayewardenepura
    Nugegoda, Western Province, Sri Lanka

Understanding the gene flow patterns and population genetic structure in disease vectors helps in planning successful control programs. The information obtained through such studies provides an understanding of the possible spread of insecticide resistant genes, and barriers and corridors existing for the release of genetically modified vector populations. Aedes aegypti is the primary vector of dengue in Sri Lanka. In this study we explored the gene flow patterns of Ae. aegypti among ten locations in Sri Lanka using variations at eleven microsatellite loci. We found abundant levels of gene flow towards the major commercial cities in Sri Lanka. Sri Lankan Ae. aegypti populations revealed low genetic structure with the exception of a population located in hill country. Our results indicated a passive migration of the mosquito towards the commercial cities in Sri Lanka. The results suggest the possibility of introduction of resistance genes to susceptible mosquito populations as well as the possibility of the emergence of dengue epidemic in the country.