Comparison of the external morphology of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) ticks from Brazil and Argentina

Oliveira, Patrícia Rosa de; Bechara, Gervásio Henrique; Denardi, Sandra Eloisi; Saito, Kelly Cristina; Nunes, Érika Takagi; Szabó, Matías Pablo Juan; Camargo‐Mathias, Maria Izabel

doi:10.1016/j.vetpar.2005.01.001

Cited by 62 publications

(43 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Oliveira et al (2005) described morphological differences between specimens of R. sanguineus collected in Brazil and Argentina, such as body size and genital pore and sensory structures, thus suggesting that the species found in Brazil may be different. While the mitochondrial 12S rDNA sequences of Argentinean ticks were closest to corresponding sequences of R. sanguineus from France, the sequences from Brazilian ticks were closest to Rhipicephalus turanicus from Zimbabwe (SZABÓ et al, 2005).…”

Section: Transmissionmentioning

confidence: 99%

Brazilian canine hepatozoonosis

O’Dwyer

2011

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

The genus Hepatozoon includes hundreds of species that infect birds, reptiles, amphibians and mammals, in all continents with tropical and subtropical climates. Two species have been described in domestic dogs: H. canis, reported in Europe, Asia, Africa, South America and the United States; and H. americanum, which so far has only been diagnosed in the United States. In Brazil, the only species found infecting dogs is H. canis. The objective of this review was to detail some aspects of canine hepatozoonosis, caused by H. canis, and the main points of its biology, transmission, pathogenicity, symptoms, epidemiology and diagnostic methods, with emphasis on research developed in Brazil.

show abstract

Section: Transmissionmentioning

confidence: 99%

Brazilian canine hepatozoonosis

O’Dwyer

2011

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

show abstract

“…sanguineus group, which includes at least five closely related Old World species (Walker et al 2000). Their differentiation and delineation remain subjects of an ongoing debate (Feldman-Muhsam 1952;Feldman-Muhsam 1968;Pegram et al 1987aPegram et al , b, 1989Farid 1996;Baker 1998;Oliveira et al 2005;Szabo et al 2005). Morphological identification of brown dog ticks is complicated by intraspecific variability of morphological traits and close similarity to those in related species (Farid 1996;Oliveira et al 2005) with the result that they are often misidentified (Pegram et al 1987b;Ioffe-Uspenskiy et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Crossbreeding between different geographical populations of the brown dog tick, Rhipicephalus sanguineus (Acari: Ixodidae)

et al. 2012

View full text Add to dashboard Cite

Brown dog ticks are distributed world-wide, and their systematics and phylogeny are the subject of an ongoing debate. The present study evaluates the reproductive compatibility between Rhipicephalus sanguineus ticks from North America, Israel, and Africa. Female ticks of the parent generation were mated with males from the same and alternate colonies. Every pure and hybrid cohort was maintained separately into the F2 generation with F1 females being allowed to mate only with males from the same cohort. The following survival parameters were measured and recorded for every developmental stage: feeding duration and success; engorgement weight, fertility, and fecundity of females; molting and hatching success. Ticks from North American and Mediterranean populations hybridized successfully. The survival parameters of all their hybrid lines were similar to those in pure lines throughout the F1 generation, and F1 adults were fully fertile. Parent adult ticks from the African population hybridized with either North American or Mediterranean ticks and produced viable progenies whose survival parameters were also similar to those in pure lines throughout the F1 generation. However, F1 adults in the four hybrid lines that included African ancestry were infertile. No parthenogenesis was observed in any pure or hybrid lines as proportion of males in F1 generation ranged from 40 to 60 %. Phylogenetic analysis of the 12S rDNA gene sequences placed African ticks into a separate clade from those of the North American or Mediterranean origins. Our results demonstrate that Rh. sanguineus ticks from North America and Israel represent the same species, whereas the African population used in this study is significantly distant and probably represents a different taxon.

show abstract

“…The ticks from Brazil seemed phylogenetically closer to R. turanicus from South Africa, while those from Argentina were more related to R. sanguineus from Europe Oliveira et al 2005). Moraes-Filho et al (2011), Nava et al (2012) and Sanches (2013) concluded that the taxonomy previously recognized as R. sanguineus is represented in the Neotropical Region by two genetically different lineages: one distributed in tropical and subtropical areas (comprising the strain from Jaboticabal, Brazil), and another restricted to temperate localities (comprising the strain from Rafaela, Argentina).…”

Section: Introductionmentioning

confidence: 89%

Lack of acquired resistance in dogs to successive infestations of Rhipicephalus sanguineus ticks from Brazil and Argentina

et al. 2015

Self Cite

View full text Add to dashboard Cite

Comparative studies between brown dog tick Rhipicephalus sanguineus populations from Brazil (Jaboticabal, São Paulo) and Argentina (Rafaela, Santa Fé) showed significant biological, morphological and genetic differences between them. This work aimed to study, in a comparative way, the acquisition of resistance in domestic dogs to R. sanguineus from Jaboticabal and Rafaela, after successive and controlled infestations. Ticks were kept in a BOD incubator under controlled conditions (27 °C, 80 % relative humidity, 12-h photoperiod). Ten dogs, Dachshund breed, males and females, 6 months old, short- or long-haired, without prior contact with ticks, were used as hosts. They were distributed into two experimental groups composed of five animals each: G1 infested with ten adult couples of R. sanguineus (Jaboticabal) per animal, and G2 infested with ten adult couples of R. sanguineus (Rafaela) per animal. Ticks' biological parameters and titration of antibodies from the dogs' sera by ELISA test were used for comparison between the strains. Results of the biological parameters showed that the dogs did not acquire immunity to either of the R. sanguineus strains after repeated infestations. The ELISA test showed low antibody titers in sera of dogs from G2, in successive infestations, and higher antibody responses post second and third infestations in G1. It also demonstrated cross-reactivity between sera of dogs infested with R. sanguineus (Jaboticabal) and antigens from R. sanguineus (Rafaela) and vice versa. We conclude that Dachshund dogs did not develop resistance against neither Jaboticabal nor Rafaela strains of R. sanguineus.

show abstract

Comparison of the external morphology of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) ticks from Brazil and Argentina

Cited by 62 publications

References 2 publications

Brazilian canine hepatozoonosis

Brazilian canine hepatozoonosis

Crossbreeding between different geographical populations of the brown dog tick, Rhipicephalus sanguineus (Acari: Ixodidae)

Lack of acquired resistance in dogs to successive infestations of Rhipicephalus sanguineus ticks from Brazil and Argentina

Contact Info

Product

Resources

About