Phylogeography and population strucure of Aedes aegypti in Arizona

Samuel A. Merrill, Frank B. Ramberg, Henry H. Hagedorn

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Aedes aegypti, the mosquito responsible for transmitting dengue, has colonized many cities and towns throughout Arizona. Determining both the migration between, and the origin of, local Ae. aegypti populations is important for vector control and disease prevention purposes. Amplified fragment length polymorphism was used to infer geographic structure and local substructure, and effective migration rates (M, migrants per generation) between populations, and to determine genetic differentiation between populations (ΦPT). Three geographically and genetically differentiated groups of populations were identified. Population substructure was only detected in the border town of Nogales. Reliable estimates of M between regions ranged from 1.02 to 3.41 and between cities within regions from 1.66 to 4.44. In general, pairwise ΦPT were lowest between cities within regions. The observed patterns of genetic differentiation suggest infrequent migration between populations and are compatible with the idea of human transport facilitating dispersal between regions.

Original languageEnglish (US)
Pages (from-to)304-310
Number of pages7
JournalAmerican Journal of Tropical Medicine and Hygiene
Issue number3
StatePublished - Mar 2005
Externally publishedYes

ASJC Scopus subject areas

  • Parasitology
  • Virology
  • Infectious Diseases


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