Fecha/hora: 13/06/2024 06:38:15

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 19/04/2023
Fecha de la última actualización: | 14/09/2023
Autoria: | CABRERA, A.; PITA, S.; GONZÁLEZ, T.; VIERA, A.; VERGER, L.; PIEGAS, S.; WILLAT, G.; FRESIA, P.; BASMADJIÁN, Y.
Afiliación: | ANDRÉS CABRERA, Dpto. Parasitología y Micología, Inst.Higiene, Fac. Medicina, UdelaR, Mdeo, Uruguay; Lab. Interacciones Hospedero-Patógeno, Inst.Pasteur Mdeo, Mdeo, Uruguay; Unid. Microbiología, Dpto. Patobiología, Fac. Veterinaria, UdelaR, Mdeo, Uruguay.; SEBASTIÁN PITA, Laboratorio de Interacciones Hospedero-Patógeno, Institut Pasteur Montevideo, Montevideo, Uruguay Sección Genética Evolutiva, Facultad de Ciencias, UdelaR, Montevideo, Uruguay; TELMA GONZÁLEZ, Departamento de Parasitología y Micología, Instituto de Higiene, Facultad de Medicina, UdelaR, Montevideo, Uruguay; ANA VIERA, Departamento de Parasitología y Micología, Instituto de Higiene, Facultad de Medicina, UdelaR, Montevideo, Uruguay; LORENZO VERGER, Ministerio de Salud Pública, Uruguay, Montevideo, Uruguay; SOFÍA PIEGAS, Ministerio de Salud Pública, Uruguay, Montevideo, Uruguay; GABRIELA WILLAT, Ministerio de Salud Pública, Uruguay, Montevideo, Uruguay; PABLO FRESIA, Unidad Mixta UMPI, Institut Pasteur Montevideo + INIA, Montevideo, Uruguay; YESTER BASMADJIÁN, Departamento de Parasitología y Micología, Instituto de Higiene, Facultad de Medicina, UdelaR, Montevideo, Uruguay.
Título: | Genetic variability highlights the invasion route of the Lutzomyia longipalpis complex, the main vector of Visceral Leishmaniasis in Uruguay.
Año de publicación: | 2023
Fuente/Imprenta: | Zoonoses and Public Health. 2023, Volume 70, Issue 5, Pages 383-392. doi: https://doi.org/10.1111/zph.13036
ISSN: | 1863-1959
DOI: | 10.1111/zph.13036
Idioma: | Inglés
Notas: | Article history: First published 10 March 2023. -- Correspondence author: Andrés, C.; Departamento de Parasitología y Micología, Instituto de Higiene, Facultad de Medicina, UdelaR, Montevideo, Uruguay; email:andresmcc1@gmail.com  -- Publisher: John Wiley and Sons Inc. -- Supplementary material available. --
Contenido: | In the Americas, the sandfly Lutzomyia longipalpis is the main vector of the parasitic protozoa Leishmania infantum, the etiological agent of visceral leishmaniasis (VL). The Lu. longipalpis species complex is currently discontinuously distributed across the Neotropical region, from Mexico to the north of Argentina and Uruguay. During its continental spreading, it must have adapted to several biomes and temperature amplitudes, when founder events should have contributed to the high genetic divergence and geographical structure currently observed, reinforcing the speciation process. The first report of Lu. longipalpis in Uruguay was in 2010, calling the attention of Public Health authorities. Five years later, the parasite Le. infantum was recorded and in 2015 the first case of VL in canids was reported. Hitherto seven human deaths by VL have been reported in Uruguay. Here, we publish the first DNA sequences from the mitochondrial genes ND4 and CYTB of Lu. longipalpis collected in Uruguay, and we used these molecular markers to investigate their genetic variability and population structure. We described four new ND4 haplotypes in a total of 98 (4/98) and one CYTB in a total of 77 (1/77). As expected, we were able to establish that the Lu. longipalpis collected in two localities (i.e. Salto and Bella Unión) from the north of Uruguay are closely related to the populations from neighbouring countries. We also propose that the possible route for the vector arrival to the region may have been through vegetation and forest corridors of the Uruguay River system, as well as it may have benefited from landscape modifications generated by commercial forestation. The ecological-scale processes shaping Lu. longipalpis populations, the identification of genetically homogeneous groups and the gene flow among them must be carefully investigated by using highly sensible molecular markers (i.e. genome wide SNPs) since it will help to the understanding of VL transmission and contribute to the planification of public policies on its control. © 2023 Wiley-VCH GmbH. Published by John Wiley & Sons Ltd.
Palabras-Clave: | Infectious disease; Life on land (SDS Goal 15); Lutzomyia longipalpis complex; Molecular markers; MtDNA; Phylogeography; UNIDAD MIXTA PASTEUR + INIA.
Categoría del tema: | A50 Investigación agraria
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103389-1) - PXI - AP - DD - Zoonoses and Public Health/2023 -  -  - DIS