Analysis of antenal sensilla patterns of Rhodnius prolixus from Colombia and Venezuela
Mem. Inst. Oswaldo Cruz
; 100(8): 909-914, Dec. 2005. mapas, tab, graf
Article
in En
| LILACS
| ID: lil-419959
Responsible library:
BR1.1
ABSTRACT
Antennal sensilla patterns were used to analyze population variation of domestic Rhodnius prolixus from six departments and states representing three biogeographical regions of Colombia and Venezuela. Discriminant analysis of the patterns of mechanoreceptors and of three types of chemoreceptors on the pedicel and flagellar segments showed clear differentiation between R. prolixus populations east and west of the Andean Cordillera. The distribution of thick and thin-walled trichoids on the second flagellar segment also showed correlation with latitude, but this was not seen in the patterns of other sensilla. The results of the sensilla patterns appear to be reflecting biogeographic features or population isolation rather than characters associated with different habitats and lend support to the idea that domestic R. prolixus originated in the eastern region of the Andes.
Full text:
1
Index:
LILACS
Main subject:
Rhodnius
/
Sense Organs
/
Geography
Limits:
Animals
Country/Region as subject:
America do sul
/
Colombia
/
Venezuela
Language:
En
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
MEDICINA TROPICAL
/
PARASITOLOGIA
Year:
2005
Type:
Article
/
Project document