title: Low gene flow of Aedes aegypti between dengue-endemic and dengue-free areas in southeastern and southern Brazil.
abstract: We present a population genetic study of Aedes aegypti in Brazil using isoenzyme markers. Four polymorphic loci were used to examine 11 mosquito collections at four periods in 2003. Samples from a dengue-endemic area (southeastern region) and a dengue-free area (southern region) connected by an important network of roads and railways were analyzed. The degree of genetic differentiation observed between populations is consistent with limited gene flow between them. There was no evidence of passive dispersion of Ae. aegypti by vehicles among the different routes linking metropolitan areas.
authors: Laboratório de Transmissores de Hematozoários, Instituto Oswaldo Cruz, Avenida Brasil 4365, 21045 Rio de Janeiro, RJ, Brazil.
authors: Magda Clara Vieira
authors: MC
authors: da Costa-Ribeiro
authors: Ricardo
authors: R
authors: Lourenço-de-Oliveira
authors: Anna-Bella
authors: AB
authors: Failloux
mesh_terms: D000330:Aedes / Q000201:enzymology / Q000235:genetics* / Q000821:virology; D000818:Animals; D001938:Brazil / Q000453:epidemiology; D020552:Comet Assay; D003715:Dengue / Q000453:epidemiology / Q000635:transmission; D019353:Endemic Diseases; D051456:Gene Flow; D014644:Genetic Variation; D007303:Insect Vectors / Q000201:enzymology / Q000235:genetics* / Q000821:virology; D007527:Isoenzymes; D015810:Linkage Disequilibrium; D011110:Polymorphism, Genetic; D012621:Seasons
chemical_list: D007527:Isoenzymes