Enzymatic variability in Aedes aegypti (Diptera: Culicidae) populations from Manaus-AM, Brazil

• Autor(a) principal: Fraga, Elmary da Costa
• Data de Publicação: 2003
• Outros Autores: Santos, Joselita Maria Mendes dos, Maia, Juracy de Freitas
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional do INPA
• Texto Completo: https://repositorio.inpa.gov.br/handle/1/14967
• topic: Insect Proteins; Malate Dehydrogenase; Phosphoglucomutase; Aedes Aegypti; Analysis Of Variance; Brasil; Controlled Study; Enzyme Analysis; Female; Fly; Gene Locus; Genetic Linkage; Polymorphism, Genetic; Genetic Variability; Geography; Heterozygosity; Male; Mosquito; Nonhuman; Genetics, Population; Randomization; Statistical Analysis; Structure Analysis; Aedes Aegypti; Culicidae; Diptera; Insecta

Eighteen enzymatic loci were analysed in Aedes aegypti populations from four neighbourhoods in the city of Manaus. The analyses showed that the Downtown population was the most polymorphic (p = 55.6%) with higher observed and expected mean heterozygosities (Ho = 0.152 ± 0.052; He = 0.174 ± 0.052, respectively. The least variability was detected in the Coroado and Cidade Nova populations, both with polymorphism of 44.4%. The latter population presented the least observed heterozygosity (Ho = 0.109 ± .037). Wright's F statistics showed that the mean value of Fis as higher than that of Fst (Fis = 0. 164 > Fst = 0.048), and from analysis of molecular variance (AMOVA) it was found that 95.12% of the variability is found within populations indicating a certain intra-population differentiation possibly of the microgeographic structure resulting from some barrier in the random coupling. Although the four populations were similar genetically (D = 0.003 to 0.016), the 4.88% differentiation was significant.