Genetic Diversity of Dengue Vector Aedes albopictus Collected from South Korea, Japan, and Laos

Jiyeong Shin, Md Mafizur Rahman, Juil Kim, Sébastien Marcombe, Jongwoo Jung

Research output: Contribution to journalArticlepeer-review

Abstract

Aedes albopictus is native to Southeast Asia and has emerged as a major vector for vector-borne diseases that are spreading rapidly worldwide. Recent studies have shown that Ae. albopictus populations have different genetic groups dependent on their thermal adaptations; however, studies on Korean populations are limited. In this study, we analyzed the genetic diversity and structure of two mitochondrial genes (COI and ND5) and sixteen microsatellites in mosquitoes inhabiting Korea, Japan, and Laos. The results indicate that the Korean population has low genetic diversity, with an independent cluster distinct from the Laos population. Mixed clusters have also been observed in the Korean population. On the basis of these findings, two hypotheses are proposed. First, certain Korean populations are native. Second, some subpopulations that descended from the metapopulation (East Asian countries) were introduced to Japan before migrating to Korea. Furthermore, we previously demonstrated that Ae. albopictus appears to have been imported to Korea. In conclusion, the dengue-virus-carrying mosquitoes could migrate to Korea from Southeast Asian epidemic regions, where they can survive during the severe winter months. The key findings can be used to establish an integrated pest management strategy based on population genetics for the Korean Ae. albopictus population.

Original languageEnglish
Article number297
JournalInsects
Volume14
Issue number3
DOIs
StatePublished - Mar 2023

Bibliographical note

Funding Information:
This research was funded by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2021R1A6A1A03044242), and also funded by the Ministry of Education (2021R1I1A2051574) Republic of Korea.

Publisher Copyright:
© 2023 by the authors.

Keywords

  • Aedes albopictus
  • genetic diversity
  • invasive species
  • microsatellites
  • mitochondrial DNA
  • population structure

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