ArticlePLoS neglected tropical diseases2022
City puzzles: Does urban land scape affect genetic population structure in Aedes aegypti?
Article in PLoS neglected tropical diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Fine-Scale Landscape Genomics Show Asymmetric Patterns of Gene Flow for the Invasive MosquitoEcology and evolution · 2026Article
- Minor Allele Frequency Filtering Can Strongly Bias Uniqueness Estimates Within and Across Species.Ecology and evolution · 2026Article
- Emerging and re-emerging vector-borne and other zoonotic RNA viruses: pathogenesis, climate-driven dynamics, and strategies for global control.Frontiers in microbiology · 2026Review
- Genomic Analysis ofVector borne and zoonotic diseases (Larchmont, N.Y.) · 2024Article
- Microsatellite-based analysis revealsEvolutionary applications · 2024Article
- Breeding Habitat Preference of the Dengue Vector MosquitoesJournal of tropical medicine · 2024Article
- Genetic differentiation among Aedes aegypti populations from different eco-geographical zones of India.PLoS neglected tropical diseases · 2023Article
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4 authors.
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Abstract
Cities usually offer a suitable environment for the dengue vector Aedes aegypti, providing oviposition sites, accessibility to human hosts and nectar meals. However, large urban centres are highly heterogeneous environments, forming a patched landscape that could affect Ae. aegypti population dynamics and dispersal. Here, we performed a genome-wide analysis using Rad-seq data from 99 Ae. aegypti specimens collected in three areas within Buenos Aires city with varying levels of urbanization/land use: highly urbanized Area 1, intermediate Area 2 and poorly urbanized Area 3. We found an inverse association between urbanization levels and spatial genetic structure. Populations from highly urbanized Area 1 did not present genetic structure whereas two and three clusters were detected in Areas 2 and 3, respectively. In the case of Area 3, initial analyses showed separation in clusters was mostly due to elevated consanguinity within sites although three clusters were still detected after closely related individuals were discarded. Mosquitoes around each site displayed a high degree of isolation, evidencing a close dependence between the vector and human dwellings. Interestingly, specimens from distant boroughs (within the limits of the city) and the city's outskirts formed a single cluster with inner city sites (Area 1), highlighting the role of passive transport in shaping population structure. Genetic distances were poorly correlated with geographic distances in Buenos Aires, suggesting a stronger influence of passive than active dispersal on population structure. Only Area 2 displayed a significant isolation-by-distance pattern (p = 0.046), with males dispersing more than females (p = 0.004 and p = 0.016, respectively). Kinship analyses allowed us to detect full-siblings located 1.5 km apart in Area 1, which could be due to an extreme event of active female dispersal. Effective population size was higher in Area 2 confirming that cemeteries represent highly favourable environments for Ae. aegypti and need to be specifically targeted. Our results suggest that control programs should take into account urban landscape heterogeneity in order to improve vector control.
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