Isoenzyme variability of five principal triatomine vector species of Chagas disease in Mexico.
Infect Genet Evol
; 1(1): 21-8, 2001 Jul.
Article
em En
| MEDLINE
| ID: mdl-12798047
Triatoma barberi, T. dimidiata, T. longipennis, T. pallidipennis and T. picturata, all key Chagas disease vectors in Mexico, were analysed by multilocus enzyme electrophoresis (MLEE) at 17 putative loci. The majority of insect specimens studied were collected from domestic and peridomestic structures from multiple geographic locations while others were collected from sylvatic areas. T. barberi was the least polymorphic species (P(0.95)=0.18), with polymorphism rates of the other species ranging from 0.29 to 0.50. T. barberi, a member of the protracta complex, clustered apart from the other studied species by Nei's genetic distance with >1.36, and at least eight loci were found to be diagnostic for this species. T. dimidiata was more related to T. longipennis, T. pallidipennis and T. picturata (phyllosoma complex) than to T. barberi, with a genetic distance averaging 0.36 with the phyllosoma complex species. In contrast, the genetic distances between the three phyllosoma complex species were not significantly different from zero, and there were no species-specific loci differentiating among them. The results strongly support the grouping of these three species in one complex, separate from the two other species studied.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Triatoma
/
Variação Genética
/
Doença de Chagas
Limite:
Animals
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Infect Genet Evol
Assunto da revista:
BIOLOGIA
/
DOENCAS TRANSMISSIVEIS
/
GENETICA
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Holanda