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metadata.dc.type: Artigo de Periódico
Issue Date: Mar-2017
metadata.dc.creator: SOUSA, Andrelina Alves de
FRAGA, Elmary da Costa
SAMPAIO, Maria Iracilda da Cunha
BARROS, Maria Claudene
Title: Genetic differentiation in populations of Aedes aegypti (Diptera, Culicidae) dengue vector from the Brazilian state of Maranhão
Citation: SOUSA, Andrelina Alves de et al. Genetic differentiation in populations of Aedes aegypti (Diptera, Culicidae) dengue vector from the Brazilian state of Maranhão. Revista Brasileira de Entomologia, São Paulo, v. 61, n. 1, p. 51-59, jan. 2017. Disponível em: <>. Acesso em:. <>.
Abstract: Aedes (Stegomyia) aegypti is the vector responsible for the transmission of the viruses that cause zika, yellow and chikungunya fevers, the four dengue fever serotypes (DENV - 1, 2, 3, 4), and hemorrhagic dengue fever in tropical and subtropical regions around the world. The present study investigated the genetic differentiation of the 15 populations of this vector in the Brazilian state of Maranhão, based on the mitochondrial ND4 marker. A total of 177 sequences were obtained for Aedes aegypti, with a fragment of 337 bps, 15 haplotypes, 15 polymorphics sites, haplotype diversity of h = 0.6938, and nucleotide diversity of π = 0.01486. The neutrality tests (D and Fs) were not significant. The AMOVA revealed that most of the variation (58.47%) was found within populations, with FST = 0.41533 (p < 0.05). Possible isolation by distance was tested and a significant correlation coefficient (r = 0.3486; p = 0.0040) was found using the Mantel test. The phylogenetic relationships among the 15 haplotypes indicated the existence of two distinct clades. This finding, together with the population parameters, was consistent with a pattern of genetic structuring that underpinned the genetic differentiation of the study populations in Maranhão, and was characterized by the presence of distinct lineages of Aedes aegypti.
Keywords: Fluxo de genes
DNA mitocondrial
ND4 mitocondrial
Aedes aegypti - Diferenciação genética (MA)
Zika vírus
Febre amarela
metadata.dc.subject.cnpq: CNPQ::CIENCIAS BIOLOGICAS::GENETICA
Series/Report no.: Revista Brasileira de Entomologia
ISSN: 1806-9665
0085-5626 Brasil
Publisher: Universidade Federal do Pará
metadata.dc.publisher.initials: UFPA
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - ICB

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