Format

Send to

Choose Destination
PLoS One. 2019 Aug 2;14(8):e0220773. doi: 10.1371/journal.pone.0220773. eCollection 2019.

Population structuring of the invasive mosquito Aedes albopictus (Diptera: Culicidae) on a microgeographic scale.

Author information

1
Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, SP, Brazil.
2
São Paulo Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, Brazil.
3
Department of Public Health Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States of America.

Abstract

Aedes albopictus is an invasive mosquito species that has spread globally and can transmit several arboviruses, including dengue, chikungunya and yellow fever. The species was first reported in Brazil in 1986 and since then has been found in 24 of the 27 Brazilian states, often in peri-urban environments close to highly urbanized areas. To date, population genetics of this important mosquito in areas in the city of São Paulo has not been investigated. In this study, we used 12 microsatellite loci to investigate the microgeographic population genetics of Ae. albopictus, which is present throughout the city of São Paulo. All the analyses revealed structuring of the populations studied, divided into two groups with restricted gene flow between them and without evidence of isolation by distance. We propose two hypotheses to explain the results: (i) low dispersal capability-limited gene flow between populations is due to the low dispersal capability inherent to Ae. albopictus; and (ii) multiple introductions-the structure identified here results from multiple introductions, which led to different dispersal patterns within the city and more genetic heterogeneity. The ability of Ae. albopictus to invade new areas and expand may explain why these mosquito populations appear to be well established and thriving in the city of São Paulo.

Conflict of interest statement

The authors have declared that no competing interests exist.

Supplemental Content

Full text links

Icon for Public Library of Science Icon for PubMed Central
Loading ...
Support Center