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LARGE GENETIC DIFFERENTATION AND LOW VARIATION IN VECTOR COMPETENCE FOR DENGUE AND YELLOW FEVER VIRUSES OF AEDES ALBOPICTUS FROM BRAZIL, THE UNIVET STATES AND THE CAYMAN ISLANDS
Febre amarela
Aedes albopictus
Brasil
Estados Unidos
Ilhas Cayman
Diferenciação genética
Variação
Vetores
Low variation
Vector
Dengue viruses
Yellow fever virus
Brazil
United States
Caymann Islands
Autor
Afiliación
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários e de Flavivírus. Rio de Janeiro, RJ. Brasil.
Institut Pasteur. Unité d’Ecologie des Systèmes Vectoriels. Paris, France.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários e de Flavivírus. Rio de Janeiro, RJ. Brasil.
Institut Pasteur. Unité d’Ecologie des Systèmes Vectoriels. Paris, France.
Institut Pasteur. Unité d’Ecologie des Systèmes Vectoriels. Paris, France.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários e de Flavivírus. Rio de Janeiro, RJ. Brasil.
Institut Pasteur. Unité d’Ecologie des Systèmes Vectoriels. Paris, France.
Resumen en ingles
We conducted a population genetic analysis of Aedes albopictus collected from 20 sites in Brazil, the
United States (Florida, Georgia, and Illinois), and the Cayman Islands. Using isoenzyme analysis, we examined genetic
diversity and patterns of gene flow. High genetic differentiation was found among Brazilian samples, and between them
and North American samples. Regression analysis of genetic differentiation according to geographic distances indicated
that Ae. albopictus samples from Florida were genetically isolated by distance. Infection rates with dengue and yellow
fever viruses showed greater differences between two Brazilian samples than between the two North American samples
or between a Brazilian sample and a North American sample. Introductions and establishments of new Ae. albopictus
populations in the Americas are still in progress, shaping population genetic composition and potentially modifying both
dengue and yellow fever transmission patterns.
Palabras clave en portugues
DengueFebre amarela
Aedes albopictus
Brasil
Estados Unidos
Ilhas Cayman
Diferenciação genética
Variação
Vetores
Palabras clave en ingles
Genetic differentationLow variation
Vector
Dengue viruses
Yellow fever virus
Brazil
United States
Caymann Islands
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