Lutzomyia longipalpis (Diptera: Psychodidae) Argentina-Bolivia border: new report and genetic diversity
Mem. Inst. Oswaldo Cruz
;
114: e190184, 2019. graf
Article
in English
| LILACS
| ID: biblio-1040604
ABSTRACT
American visceral leishmaniasis (AVL) has two main scenarios of transmission as follows scattered cases in rural areas and urban outbreaks. Urban AVL is in active dispersion from the northeastern border of Argentina-Paraguay-Brazil to the South. The presence of Lutzomyia longipalpis was initially reported in urban environments in the northwestern border of the country. The presence of Lu. longipalpis, environmental variables associated with its distribution, and its genetic diversity were assessed in Salvador Mazza, Argentina, on the border with Bolivia. The genetic analysis showed high haplotype diversity, low nucleotide diversity, and low nucleotide polymorphism index. We discuss the hypothesis of an expanding urban population with introgressive hybridisation of older haplogroups found in their path in natural forest or rural environments, acquiring a new adaptability to urban environments, and the possibility of changes in vector capacity.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Psychodidae
/
Genetic Variation
/
Animal Distribution
/
Insect Vectors
Limits:
Animals
Country/Region as subject:
South America
/
Argentina
/
Bolivia
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2019
Type:
Article
Affiliation country:
Argentina
Institution/Affiliation country:
CONICET/AR
/
Instituto Nacional de Medicina Tropical/AR
/
Ministerio de Salud y Acción Social/AR
/
Universidad Nacional de Tucumán/AR
Similar
MEDLINE
...
LILACS
LIS