Phylogeography of Aedes Aegypti (yellow Fever Mosquito) in South Florida: MtDNA Evidence for Human-aided Dispersal

Overview

Journal Am J Trop Med Hyg

Specialty Tropical Medicine

Date 2013 Aug 7

PMID 23918216

Citations 15

Authors

Kavitha Damal

Ebony G Murrell

Steven A Juliano

Jan E Conn

Sabine S Loew

Affiliations

Soon will be listed here.

Abstract

The invasive dengue vector Aedes aegypti has persisted for > 200 years in South Florida in the United States. We tested the hypotheses that Florida's landscape creates dispersal barriers and corridors and that long-distance human-aided dispersal structures populations of Ae. aegypti. We evaluated the phylogeography of 362 individuals from Florida's East and West Coasts with a 760-bp (418- and 342-bp fragments of ND5 and ND4, respectively) mitochondrial sequence. Populations from these two coasts were not significantly differentiated, suggesting that limited urbanization in central Florida is not a strong barrier to gene flow. Evidence for long-distance dispersal between Ft. Lauderdale and the West and Ft. Myers and the East indicates the importance of human-aided dispersal. West Coast populations showed no genetic differentiation, indicating that West Coast rivers and bays did not significantly impede gene flow. Phylogeographic analysis of haplotypes showed two distinct matrilines with no geographic patterns, suggesting multiple introductions or balancing selection.

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