Larviposition site selection mediated by volatile semiochemicals in Glossina palpalis gambiensis

2020 ◽  
Author(s):  
Gimonneau Geoffrey ◽  
Romaric Ouedraogo ◽  
Salou Ernest ◽  
Rayaisse Jean‐Baptiste ◽  
Bruno Buatois ◽  
...  
Keyword(s):  
Site Selection ◽  
Glossina Palpalis Gambiensis ◽  
Volatile Semiochemicals ◽  
Glossina Palpalis

Larviposition site selection mediated by volatile semiochemicals of larval origin in Glossina palpalis gambiensis

2019 ◽  
Author(s):  
Gimonneau Geoffrey ◽  
Romaric Ouedraogo ◽  
Salou Ernest ◽  
Rayaisse Jean-Baptiste ◽  
Bruno Buatois ◽  
...  
Keyword(s):  
Site Selection ◽  
Physical Contact ◽  
Tsetse Flies ◽  
Glossina Palpalis Gambiensis ◽  
Aggregation Effect ◽  
Gravid Females ◽  
Behavioural Manipulation ◽  
Volatile Semiochemicals ◽  
Glossina Palpalis ◽  
Selection Of

AbstractTsetse flies (Diptera: Glossinidae) are the cyclical vectors of trypanosomes, the causative agents of African animal trypanosomosis or nagana in animals and human African trypanosomosis or sleeping sickness in humans. Tsetse flies are K-strategist species with the deposition of a single larva at 10 days intervals in specific sites. As larviposition site selection will strongly impact reproductive success, it is obvious that the selection of larviposition sites is not random and is under strong selective processes, probably mediated by specific cues as suggested by the existence of an aggregation factor in the Morsitans and Fusca groups. This study aimed to highlight the existence of an aggregation effect in the Palpalis group and to test for its chemical nature. We studied the larviposition site selection of Glossina palpalis gambiensis according to the presence of conspecific and heterospecific larvae buried in substrates in different settings. Three sets of experiments were performed with either individual or grouped (n = 50) gravid females, and with physical access to substrate or not. In both individual and grouped larviposition experiments, females selected significantly more often trays conditioned by larvae (P<0.005), either conspecific or heterospecific even in the absence of physical contact with the substrate. These results highlight the first evidence for larviposition site selection mediated by volatile semiochemicals of larval origin in Glossina palpalis gambiensis. However, these compounds seem not to be species-specific and therefore offer new avenues for the behavioural manipulation of these vectors and for the development of new vector control tools targeting gravid females.Author summaryLarviposition site selection in tsetse flies is govern by several biotic and abiotic factors that lead to an aggregation effect of larvae. Among those, larvae are suspected to produce chemicals that drive females to breeding site but little information is available. This study aimed to highlight the existence of an aggregation effect of larval origin in the Palpalis group and to test for its chemical nature. Through behavioural larviposition choice experiments, we showed that females of Glossina palpalis gambiensis deposit their larvae significantly more often in trays conditioned either by conspecific or heterospecific larvae, even in the absence of physical contact with the substrate. These results highlight the first evidence for aggregation effect in Glossina palpalis gambiensis mediated by volatile semiochemicals of larval origin. Isolation and identification of these chemicals should offer new avenues for the behavioural manipulation of these vectors and for the development of new vector control tools targeting gravid females.

scholarly journals Different laboratory populations similar bacterial profile? The case of Glossina palpalis gambiensis

2018 ◽  
Vol 18 (S1) ◽  
Author(s):  
Vangelis Doudoumis ◽  
Antonios Augustinos ◽  
Aggeliki Saridaki ◽  
Andrew Parker ◽  
Adly M M Abd-Alla ◽  
...  
Keyword(s):  
Glossina Palpalis Gambiensis ◽  
Laboratory Populations ◽  
Glossina Palpalis

scholarly journals Influence des variations limitées de la température et de l'humidité relative sur la durée de nymphose de Glossina palpalis gambiensis Vanderplank, 1949, élevée au laboratoire de Bobo-Dioulasso (Haute-Volta)

1978 ◽  
Vol 31 (4) ◽  
pp. 417
Author(s):  
E. Sellin ◽  
Yves Tazé ◽  
M. Clair ◽  
Dominique Cuisance ◽  
H. Politzar
Keyword(s):  
Glossina Palpalis Gambiensis ◽  
Bobo Dioulasso ◽  
Glossina Palpalis ◽  
Humidité Relative

Les auteurs ont observé dans leur élevage de G. p. gambiensis que de faibles variations de température sont sans effet sur la durée de la pupaison. Par contre, à température constante, de faibles variations de l'humidité relative entraînent d'assez importantes modifications du temps de nymphose. Ils en concluent que la production maximale en laboratoire de glossines de cette espèce implique le maintien dans les locaux de pupaison d'une humidité relative élevée, entre 85 et 90 p. 100 et aussi constante que possible

Trypanosome-binding proteins of the tsetse flies Glossina palpalis gambiensis and G. morsitans morsitans

1996 ◽  
Vol 26 (1) ◽  
pp. 113-116
Author(s):  
J. van den Abbeele ◽  
E. van Driessche ◽  
Y. Claes ◽  
D. Le Ray ◽  
M. Coosemans
Keyword(s):  
Binding Proteins ◽  
Tsetse Flies ◽  
Glossina Palpalis Gambiensis ◽  
Glossina Palpalis

scholarly journals Two Tsetse Fly Species, Glossina palpalis gambiensis and Glossina morsitans morsitans, Carry Genetically Distinct Populations of the Secondary Symbiont Sodalis glossinidius

2005 ◽  
Vol 71 (12) ◽  
pp. 8941-8943 ◽  
Author(s):  
Anne Geiger ◽  
Gérard Cuny ◽  
Roger Frutos
Keyword(s):  
Genetic Diversity ◽  
Length Polymorphism ◽  
Fragment Length ◽  
Fragment Length Polymorphism ◽  
Glossina Morsitans Morsitans ◽  
Tsetse Fly ◽  
Glossina Morsitans ◽  
Glossina Palpalis Gambiensis ◽  
Sodalis Glossinidius ◽  
Glossina Palpalis

ABSTRACT Genetic diversity among Sodalis glossinidius populations was investigated using amplified fragment length polymorphism markers. Strains collected from Glossina palpalis gambiensis and Glossina morsitans morsitans flies group into separate clusters, being differentially structured. This differential structuring may reflect different host-related selection pressures and may be related to the different vector competences of Glossina spp.

Efficacite du Triflumuron Selon la Nature et la Couleur du Tissu a L'egard de Glossina palpalis gambiensis Vanderplank, 1949

2002 ◽  
Vol 22 (04) ◽  
pp. 281-287
Author(s):  
Augustin Ziro Bance ◽  
Albert Patoin Ouedraogo ◽  
Burkhard Bauer ◽  
Idrissa Kabore ◽  
et Issa Sidibe
Keyword(s):  
Glossina Palpalis Gambiensis ◽  
Glossina Palpalis
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