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10.25100/socolen.v29i1.9570
Submitted: 01-05-2020
Published: 15-01-2003

Preliminary study of the genetic structure of domestic, peridomestic and sylvatic populations of Triatoma dimidiata (Hemiptera: Reduviidae)

Universidad de los Andes, Departamento de Ciencias Biológicas
Universidad de los Andes, Departamento de Ciencias Biológicas
Universidad de los Andes, Departamento de Ciencias Biológicas
Universidad de los Andes, Departamento de Ciencias Biológicas
Universidad de los Andes, Departamento de Ciencias Biológicas
Universidad de los Andes, Departamento de Ciencias Biológicas
Keywords: Chagas disease, RAPD, Genetic flow, Fst, Migration rate, Control programs

How to Cite

1.
JARAMILLO C, RAMÍREZ-H. C, DELGADO P, PINTO N, AGUILERA G, GUHL F. Preliminary study of the genetic structure of domestic, peridomestic and sylvatic populations of Triatoma dimidiata (Hemiptera: Reduviidae). Rev. Colomb. Entomol. [Internet]. 2003 Jan. 15 [cited 2026 Oct. 25];29(1):1-5. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/9570
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Abstract

In order to study the genetic structure of sylvatic, peridomestic and domestic populations of Triatoma dimidiata, we used the randomly amplified polymorphic DNA (RAPO) technique. The genetic flow among populations was estimated to determine the epidemiological risk of nondomiciliated populations in the transmission of Chagas disease. Fourteen sylvatic, 10 peridomestic and 15 domestic insects were analyzed. The estimated Wright "s Fst was 0.071 showing low genetic differentiation and an effective migration rate Nm of 3.3 suggesting a movement of at least three individuals per generation. These findings suggest that nondomiciliated populations of T. dimidiata represent an epidemiological menace for the transmission of Chagas disease, due to their ability to colonize dwelling. lt is necessary to perform: an epidemiological surveillance not only of the domestic populations but also on the peridomestic ones. lt is also important to carry out new and better control alternatives for reservoirs, and to offer a permanent education program to people at risk of infection.

 

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How to Cite

1.
JARAMILLO C, RAMÍREZ-H. C, DELGADO P, PINTO N, AGUILERA G, GUHL F. Preliminary study of the genetic structure of domestic, peridomestic and sylvatic populations of Triatoma dimidiata (Hemiptera: Reduviidae). Rev. Colomb. Entomol. [Internet]. 2003 Jan. 15 [cited 2026 Oct. 25];29(1):1-5. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/9570
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