Genetic diversity in Brazilian populations of Aedes albopictus

• Main Authors: Ayres CFJ, Romão TPA, Melo-Santos MAV, Furtado AF
• Format: Article
• Language: English
• Published: Instituto Oswaldo Cruz, Ministério da Saúde 2002-01-01
• Series: Memórias do Instituto Oswaldo Cruz.
• Subjects: Aedes albopictus; random amplified polymorphic DNA; genetic structure
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000600022

Random amplified polymorphic DNA (RAPD) analysis technique was undertaken in Aedes albopictus populations from three states in Brazil, Rio de Janeiro (RJ), Minas Gerais (MG) and Pernambuco (PE), to estimate the level of genetic variability and levels of genetic exchange between populations. Allele and genotype frequencies were measured on 47 RAPD loci. Average observed heterozigosity (Ho) ranged from 0.282 in MG to 0.355 in Casa Forte (PE) population. Genetic distances estimates indicated that RJ and MG were more genetically similar than populations from PE. Genetic variation observed in local Brazilian populations was attributed to genetic drift associated with restricted gene flow in recently established populations.