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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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