Título:	Differentiation and genetic variability in natural populations of Anopheles (N.) triannulatus (Neiva & Pinto, 1922) of Brazilian Amazonia.
Autor:	Santos, Joselita Maria M. Maia, Juracy de Freitas Tadei, Wanderli Pedro
Palavras-chave:	Isoenzyme Allele Animal Anopheles Brazil Classification Enzymology Genetic polymorphism Genetic Variability Genetics Species difference Alleles Animals Anopheles Brazil Isoenzymes Polymorphism Genetic Species specificity Variation (genetics)
Data do documento:	2004
Revista:	Revista Brasileira de Biologia
É parte de:	Volume 64, Número 2, Pags. 327-336
Resumo:	Populations of Anopheles triannulatus from Macapá (AP), Aripuanã (MT), Ji-Paraná (RO), and Manaus-Janauari Lake (AM) were studied using 16 enzymatic loci. The results of the isozyme analysis showed that the population of Macapá presented higher polymorphism (56.3%). The lowest variability was observed in the population of Manaus (p = 25.0; Ho = 0.077 +/- 0.046). The results of Wright's F statistics showed unbalance due to excess of homozygotes (F(is) > F(st)), denoting a certain intrapopulational differentiation. Although the populations are genetically very close (D = 0.003-0.052), the dendrogram separates the populations in two groups: Macapá separated from that of Manaus, Ji-Paraná, and Aripuanã. This result may suggest a reduction in the genic flow, which possibly had some influence in the substructuration of the populations.
DOI:	10.1590/S1519-69842004000200019
Aparece nas coleções:	Artigos

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