Vectorial competence of the lines Bobo-Dioulasso and Maisons-Alfort of Glossina palpalis gambiensis Vanderplank 1949 simultaneously infected by Trypanosoma brucei brucei Eatro 1125

Abstract

The vectorial competence (VC) of 1257 teneral tsetse flies of two parental Bobo-Dioulasso (BD) and Maisons-Alfort (MA) lines of Glossina palpalis gambiensis were assessed. The flies from both lines were fed once and simultaneously on a guinea pig infected with Trypanosoma brucei brucei EATRO 1125. Prior to dissection they were kept for 33 days with healthy guinea pigs. Based on the statistical analysis of the results the procyclic index did not differ significantly between males and females of the BD line. On the other hand, the index was more pronounced in males than in females of the MA line. The procyclic index of males was higher in the MA line than in the BD line. The metacyclic index did not differ significantly between the males or the females of both lines. However, the VC of the MA line flies was higher than that of the BD line flies. The male VC of the BD line did not significantly differ from that of females, whereas the male VC of the MA line was higher than that of females.