New insights on the Chagas disease main vector Triatoma infestans (Reduviidae, Triatominae) brought by the genetic analysis of Bolivian sylvatic populations

Autor: Rosio Buitrago, Faustine Zoveda, Claudia Aliaga, Marianne Baune, Renata Salas, Erick Villena, Pierre Kengne, Marcelo Monje, Simone Frédérique Brenière, Roberto Rodriguez, Nerida Huamán, Sergio Quisberth, Etienne Waleckx, Christian Barnabé, Marie-France Bosseno, François Noireau
Přispěvatelé: Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut de Recherche pour le Développement (IRD [Bolivie]), Instituto Nacional de Laboratorios de Salud, La Paz, Bolivia (INLASA), Escuela Tecnica de Salud - Cochabamba, Universidad Mayor de San Andrés (UMSA), IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia, Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)
Rok vydání: 2010
Předmět:
Population genetics
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
0302 clinical medicine
Sylvatic
Triatoma
Triatominae
Phylogeny
Triatoma infestans
0303 health sciences
Ecology
Internal transcribed
Cytochromes b
Mitochondria
Phylogeography
Infectious Diseases
Reduviidae
DNA
Intergenic
Microbiology (medical)
Chagas disease
Bolivia
030231 tropical medicine
Cytochrome b
Molecular Sequence Data
Biology
Microbiology
03 medical and health sciences
Genetics
medicine
Animals
Humans
spacer
Chagas Disease
Domestication
Molecular Biology
Ecology
Evolution
Behavior and Systematics
030304 developmental biology
Demography
Genetic diversity
[SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]
Base Sequence
Haplotype
Genetic Variation
[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry
Molecular Biology/Molecular biology
DNA
medicine.disease
biology.organism_classification
[SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology
Evolutionary biology
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Zdroj: Infection, Genetics and Evolution
Infection, Genetics and Evolution, Elsevier, 2011, 11 (5), pp.1045-1057. ⟨10.1016/j.meegid.2011.03.020⟩
ISSN: 1567-7257
1567-1348
Popis: International audience; Triatoma infestans is the main and most widespread vector of Chagas disease in South America. For the first time, a large sample of sylvatic populations of T. infestans was analyzed by ITS-2 and mtCytB sequencing. ITS-2 showed a low level of polymorphism but revealed a dichotomy between the Andean and non-Andean sylvatic populations. On the contrary, mtCytB sequences showed a high polymorphism (19 haplotypes determined by 35 variable sites) revealing a strong structuring between most of the sylvatic populations and possible ancient isolation and bottleneck in the Northern Andes. The dichotomy Andean vs. non-Andean populations was not observed with this marker. Moreover, mtCytB haplotype genealogies showed that the non-Andean haplotypes would have derived from the Andean ones, supporting somewhat an Andean origin of the species. Nevertheless, a non-Andean origin could not be discarded because a remarkable genetic diversity was found in the non-Andean sample. The comparison of the sylvatic haplotypes with the domestic ones from GenBank suggested multiple events of T. infestans domestication in Andean and non-Andean areas, instead of a major and unique domestication event in the Bolivian Andes, as previously proposed.
Databáze: OpenAIRE
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