Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)?
Abstract Background Triatoma dimidiata is a vector of the protozoan parasite Trypanosoma cruzi, the etiologic agent of Chagas disease. Phenotypic plasticity allows an organism to adjust its phenotype in response to stimuli or environmental conditions. Understanding the effect of T. cruzi on the phen...
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| Format: | Article |
| Language: | English |
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BMC
2022-12-01
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| Series: | Parasites & Vectors |
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| Online Access: | https://doi.org/10.1186/s13071-022-05587-y |
| _version_ | 1798005073678172160 |
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| author | Irving J. May-Concha Maryrose J. Escalante-Talavera Jean-Pierre Dujardin Etienne Waleckx |
| author_facet | Irving J. May-Concha Maryrose J. Escalante-Talavera Jean-Pierre Dujardin Etienne Waleckx |
| author_sort | Irving J. May-Concha |
| collection | DOAJ |
| description | Abstract Background Triatoma dimidiata is a vector of the protozoan parasite Trypanosoma cruzi, the etiologic agent of Chagas disease. Phenotypic plasticity allows an organism to adjust its phenotype in response to stimuli or environmental conditions. Understanding the effect of T. cruzi on the phenotypic plasticity of its vectors, known as triatomines, has attracted great interest because of the implications of the parasite–triatomine interactions in the eco-epidemiology and transmission of the etiologic agent of Chagas disease. We investigated if the infection of the vector with T. cruzi may be associated with a change in the antennal phenotype of sylvatic, domestic, and laboratory-reared populations of T. dimidiata. Methods The abundance of each type of sensillum (bristles, basiconic, thick- and thin-walled trichoid) on the antennae of T. cruzi-infected and non-infected T. dimidiata reared in the laboratory or collected in sylvatic and domestic ecotopes were measured under light microscopy and compared using Kruskal–Wallis non-parametric tests and permutational multivariate analysis of variance. Results We found significant differences between sensilla patterns of infected and non-infected insects within sylvatic and domestic populations. Conversely, we found no significant differences between sensilla patterns of infected and non-infected insects within the laboratory-reared population. Besides, for sylvatic and domestic populations, sexual dimorphism tended to be increased in infected insects. Conclusion The differences observed in infected insects could be linked to higher efficiency in the perception of odor molecules related to the search for distant mates and hosts and the flight dispersal in search of new habitats. In addition, these insects could have a positive effect on population dynamics and the transmission of T. cruzi. Graphical Abstract |
| first_indexed | 2024-04-11T12:33:33Z |
| format | Article |
| id | doaj.art-8b906755a058494a8b3ba1266cc9eb33 |
| institution | Directory Open Access Journal |
| issn | 1756-3305 |
| language | English |
| last_indexed | 2024-04-11T12:33:33Z |
| publishDate | 2022-12-01 |
| publisher | BMC |
| record_format | Article |
| series | Parasites & Vectors |
| spelling | doaj.art-8b906755a058494a8b3ba1266cc9eb332022-12-22T04:23:41ZengBMCParasites & Vectors1756-33052022-12-0115111110.1186/s13071-022-05587-yDoes Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)?Irving J. May-Concha0Maryrose J. Escalante-Talavera1Jean-Pierre Dujardin2Etienne Waleckx3Facultad de Medicina Veterinaria Y Zootecnia Campus II, Universidad Autónoma de ChiapasLaboratorio de Parasitología, Centro de Investigaciones Regionales “Dr Hideyo Noguchi”, Universidad Autónoma de YucatánInstitut de Recherche pour le Développement, UMR INTERTRYP IRD, CIRAD, Université de MontpellierLaboratorio de Parasitología, Centro de Investigaciones Regionales “Dr Hideyo Noguchi”, Universidad Autónoma de YucatánAbstract Background Triatoma dimidiata is a vector of the protozoan parasite Trypanosoma cruzi, the etiologic agent of Chagas disease. Phenotypic plasticity allows an organism to adjust its phenotype in response to stimuli or environmental conditions. Understanding the effect of T. cruzi on the phenotypic plasticity of its vectors, known as triatomines, has attracted great interest because of the implications of the parasite–triatomine interactions in the eco-epidemiology and transmission of the etiologic agent of Chagas disease. We investigated if the infection of the vector with T. cruzi may be associated with a change in the antennal phenotype of sylvatic, domestic, and laboratory-reared populations of T. dimidiata. Methods The abundance of each type of sensillum (bristles, basiconic, thick- and thin-walled trichoid) on the antennae of T. cruzi-infected and non-infected T. dimidiata reared in the laboratory or collected in sylvatic and domestic ecotopes were measured under light microscopy and compared using Kruskal–Wallis non-parametric tests and permutational multivariate analysis of variance. Results We found significant differences between sensilla patterns of infected and non-infected insects within sylvatic and domestic populations. Conversely, we found no significant differences between sensilla patterns of infected and non-infected insects within the laboratory-reared population. Besides, for sylvatic and domestic populations, sexual dimorphism tended to be increased in infected insects. Conclusion The differences observed in infected insects could be linked to higher efficiency in the perception of odor molecules related to the search for distant mates and hosts and the flight dispersal in search of new habitats. In addition, these insects could have a positive effect on population dynamics and the transmission of T. cruzi. Graphical Abstracthttps://doi.org/10.1186/s13071-022-05587-yTriatominesChagas diseaseHost manipulationPhenotypic plasticity |
| spellingShingle | Irving J. May-Concha Maryrose J. Escalante-Talavera Jean-Pierre Dujardin Etienne Waleckx Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)? Parasites & Vectors Triatomines Chagas disease Host manipulation Phenotypic plasticity |
| title | Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)? |
| title_full | Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)? |
| title_fullStr | Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)? |
| title_full_unstemmed | Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)? |
| title_short | Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)? |
| title_sort | does trypanosoma cruzi chagas 1909 kinetoplastida trypanosomatidae modify the antennal phenotype of triatoma dimidiata latreille 1811 hemiptera triatominae |
| topic | Triatomines Chagas disease Host manipulation Phenotypic plasticity |
| url | https://doi.org/10.1186/s13071-022-05587-y |
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