Genetic Structuring of One of the Main Vectors of Sylvatic Yellow Fever: Haemagogus (Conopostegus) leucocelaenus (Diptera: Culicidae)

Autor(es)

Wilk-da-Silva, Ramon ; Medeiros-Sousa, Antonio Ralph ; Mucci, Luis Filipe ; Alonso, Diego Peres ; Alvarez, Marcus Vinicius Niz ; Ribolla, Paulo Eduardo Martins ; Marrelli, Mauro Toledo

• Tipo de documento: Artigo Científico
• Fonte: GENES; v. 14, n. 9, p. 16-pg., 2023-09-01.

Resumo

Genetic diversity and population structuring for the species Haemogogus leucocelaenus, a sylvatic vector of yellow fever virus, were found to vary with the degree of agricultural land use and isolation of fragments of Atlantic Forest in municipalities in the state of Sao Paulo where specimens were collected. Genotyping of 115 mitochondrial SNPs showed that the populations with the highest indices of genetic diversity (polymorphic loci and mean pairwise differences between the sequences) are found in areas with high levels of agricultural land use (northeast of the State). Most populations exhibited statistically significant negative values for the Tajima D and Fu FS neutrality tests, suggesting recent expansion. The results show an association between genetic diversity in this species and the degree of agricultural land use in the sampled sites, as well as signs of population expansion of this species in most areas, particularly those with the highest forest edge densities. A clear association between population structuring and the distance between the sampled fragments (isolation by distance) was observed: samples from a large fragment of Atlantic Forest extending along the coast of the state of Sao Paulo exhibited greater similarity with each other than with populations in the northwest of the state. (AU)

• Processo FAPESP: 18/25437-6 - Estudo dos potenciais vetores e fatores ecológicos associados à emergência e circulação da febre amarela no Brasil
• Beneficiário: Mauro Toledo Marrelli
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular
• Processo FAPESP: 17/23127-7 - Análise da influência da paisagem sobre a estrutura populacional de mosquitos Haemagogus (Conopostegus) leucocelaenus (Diptera: Culicidae), em áreas com histórico de epizootias de Febre Amarela em primatas não humanos no estado de São Paulo
• Beneficiário: Ramon Wilk da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/18751-6 - Desenvolvimento de modelos preditivos para a dinâmica de transmissão e dispersão espacial da febre amarela silvestre no Brasil.
• Beneficiário: Antônio Ralph Medeiros de Sousa
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado