Document Detail

Isoenzyme variability of five principal triatomine vector species of Chagas disease in Mexico.
MedLine Citation:
PMID:  12798047     Owner:  NLM     Status:  MEDLINE    
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.
A Flores; E M Gastélum; M F Bosseno; R Ordoñez; F L Kasten; B Espinoza; J Ramsey; S F Brenière
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases     Volume:  1     ISSN:  1567-1348     ISO Abbreviation:  Infect. Genet. Evol.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2003-06-11     Completed Date:  2003-08-01     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101084138     Medline TA:  Infect Genet Evol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  21-8     Citation Subset:  IM    
UNAM, Instituto de Investigaciones Biomédicas, AP 70228, CP 04510, D.F., México, Mexico.
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MeSH Terms
Chagas Disease / transmission*
Genetic Variation*
Isoenzymes / genetics
Polymorphism, Genetic
Species Specificity
Triatoma / enzymology*,  genetics*
Trypanosoma cruzi
Reg. No./Substance:

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