Molecular, biological, and morphometric comparisons between different geographical populations of Rhipicephalus sanguineus sensu lato (Acari: Ixodidae)

In this study, different geographical populations of Rhipicephalus sanguineus sensu lato were compared by molecular, biological, and morphometric methods. Phylogenetic trees were constructed using 12S and 16S rDNA sequences and showed two distinct clades: one composed of ticks from Brazil (Jaboticab...

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Detalhes bibliográficos
Autores: Sanches, Gustavo S. [UNESP]; Évora, Patrícia M. [UNESP]; Mangold, Atílio J.; Jittapalapong, Sattaporn; Rodriguez-Mallon, Alina; Guzmán, Pedro E.E.; Bechara, Gervásio H. [UNESP]; Camargo-Mathias, Maria I.
Tipo de documento: Artigo
Estado:Published version
Data de publicação:2016
País:Brasil
Recursos:UNESP
Repositório:Repositório Institucional da UNESP
Idioma:Inglês
OAI Identifier:oai:repositorio.unesp.br:11449/172564
Acesso em linha:http://dx.doi.org/10.1016/j.vetpar.2015.11.007
http://hdl.handle.net/11449/172564
Nível de acesso:Acesso aberto
Palavra-chave:Genetic analysis
Morphometry
Rhipicephalus sanguineus
Taxonomy
Descrição
Resumo:In this study, different geographical populations of Rhipicephalus sanguineus sensu lato were compared by molecular, biological, and morphometric methods. Phylogenetic trees were constructed using 12S and 16S rDNA sequences and showed two distinct clades: one composed of ticks from Brazil (Jaboticabal, SP), Cuba (Havana) Thailand (Bangkok) and the so-called tropical strain ticks. The second clade was composed of ticks from Spain (Zaragoza), Argentina (Rafaela, Santa Fe) and the so-called temperate strain ticks. Morphometric analysis showed good separation between females of the two clades and within the temperate clade. Males also exhibited separation between the two clades, but with some overlap. Multiple biological parameters revealed differences between the two clades, especially the weight of the engorged female. These results confirm the existence of at least two species under the name R. sanguineus.