Anopheles darlingi polytene chromosomes: revised maps including newly described inversions and evidence for population structure in Manaus
Mem. Inst. Oswaldo Cruz
; 111(5): 335-346, May 2016. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-782048
Biblioteca responsável:
BR1.1
ABSTRACT
Salivary gland polytene chromosomes of 4th instar Anopheles darlingi Root were examined from multiple locations in the Brazilian Amazon. Minor modifications were made to existing polytene photomaps. These included changes to the breakpoint positions of several previously described paracentric inversions and descriptions of four new paracentric inversions, two on the right arm of chromosome 3 and two on the left arm of chromosome 3 that were found in multiple locations. A total of 18 inversions on the X (n = 1) chromosome, chromosome 2 (n = 7) and 3 (n = 11) were scored for 83 individuals from Manaus, Macapá and Porto Velho municipalities. The frequency of 2Ra inversion karyotypes in Manaus shows significant deficiency of heterozygotes (p < 0.0009). No significant linkage disequilibrium was found between inversions on chromosome 2 and 3. We hypothesize that at least two sympatric subpopulations exist within the An. darlingi population at Manaus based on inversion frequencies.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Glândulas Salivares
/
Cromossomos Politênicos
/
Insetos Vetores
/
Inversão Cromossômica
/
Anopheles
Limite:
Animais
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2016
Tipo de documento:
Artigo
País de afiliação:
Estados Unidos
Instituição/País de afiliação:
University of California/US