Estudo genético e morfológico de populações de Aedes aegypti (Culicidae) na área metropolitana de São Paulo - SP. / Genetic and morphological study of Aedes aegypti (culicidae) population in São Paulo (SP) metropolitan area.

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

15/12/2010

RESUMO

Populational studies of Ae. aegypti are important to develop control strategies, but unfortunately the State of São Paulo lacks such studies. Despite this context, the objective of this work was to evaluate genetic and phenotypic variability of population samples of Ae. aegypti from four collecting sites in the metropolitan area of São Paulo city. The interpopulational analysis of shape for females and males showed morphological variability in wings, but did not indicate population structure. Pairwise fenetic distances among populations were not correlated to the geographic distances for males (r=-0.03) and females (r =0.34). Populational structure was detected (global Fst= 0.062) and low gene flow (Nm= 0.41) was presumed among four locations. Pairwise genetic distances among populations were correlated to the geographic distances (r = 0.76). The two populational markers used here apparently have different degrees of resolution for microevolutionary events, being that microsatellite DNA were slightly more sensitive in revealing populational structure.

ASSUNTO(S)

aedes aegypti aedes aegypti culicidae culicidae evolução evolution genética genetics insetos vetores morfometrtia morphometrics vectors insects

ACESSO AO ARTIGO

Documentos Relacionados