The taxonomic status of Rhipicephalus sanguineus (Latreille, 1806)

Nava, Stefano; Estrada-Peña, Agustı́n; Petney, Trevor N.; Béati, Lorenza; Labruna, Marcelo B.; Szabó, Matias Pablo Juán; Venzal, José M.; Mastropaolo, Mariano; Mangold, Atilio José; Guglielmone, Alberto A.

doi:10.1016/j.vetpar.2014.12.021

Cited by 147 publications

(99 citation statements)

References 27 publications

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“…In the case of Rhipicephalus, the errors in classification were mainly due to the lack of a harmonised definition of the R. sanguineus s.l. group, which needs a re-description and the designation of a neotype of R. sanguineus s.s. (Nava et al, 2015). As a further proof of the inherent identification difficulties within the genus Rhipicephalus, no participant was able to correctly identify the adults of the neglected R. rossicus (rarely included in most books used by European tick researchers) in the first round, and only one laboratory managed a correct identification after a key containing the species was circulated among the participants.…”

Section: Discussionmentioning

confidence: 99%

A comparative test of ixodid tick identification by a network of European researchers

Estrada-Peña¹,

D’Amico

Palomar

et al. 2017

Ticks and Tick-borne Diseases

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This study reports the results of a comparative test of identification of ticks occurring in Western Europe and Northern Africa. A total of 14 laboratories were voluntarily enrolled in the test. Each participant received between 22 and 25 specimens of adult and nymphal ticks of 11 species: Dermacentor marginatus, D. reticulatus, Haemaphysalis punctata, Hyalomma lusitanicum, Hy. marginatum, Ixodes ricinus, I. hexagonus, Rhipicephalus annulatus, R. bursa, R. rossicus, and/or R. sanguineus s.l. Ticks were morphologically identified by three of the co-authors and the identification confirmed by a fourth co-author who used molecular methods based on several genes. Then ticks were randomly selected and blindly distributed among participants, together with a questionnaire. Only specimens collected while questing and, if possible, in the same survey, were circulated. Because of the random nature of the test, a participant could receive several specimens of the same species. Species in the different genera had variable misidentification rates (MR) of 7% (Dermacentor), 14% (Ixodes), 19% (Haemaphysalis), 36% (Hyalomma), and 54% (Rhipicephalus). Within genera, the MR was also variable ranging from 5.4% for I. ricinus or 7.4% for D. marginatus or D. reticulatus to 100% for R. rossicus. The test provided a total misidentification rate of 29.6% of the species of ticks. There are no significant differences in MR according to the sex of the tick. Participants were requested to perform a second round of identifications on the same set of ticks, using only purposely prepared keys (without illustrations), circulated to the enrolled participants, including 2 species of the genus Dermacentor, 8 of Haemaphysalis, 10 of Hyalomma, 23 of Ixodes, and 6 of Rhipicephalus. The average MR in the second round was 28%: 0% (Dermacentor), 33% (Haemaphysalis), 30% (Hyalomma) 18% (Ixodes), and 50% (Rhipicephalus). Species which are not reported in the countries of a participating laboratory had always highest MR, i.e. purely Mediterranean species had highest MR by laboratories in Central and Northern Europe. Participants expressed their concerns about a correct identification for almost 50% of the ticks of the genera Hyalomma and Rhipicephalus. The results revealed less than total confidence in identifying the most prominent species of ticks in the Western Palearctic, and underpin the need for reference libraries for specialists involved in this task. Results also showed that a combination of certain genes may adequately identify the target species of ticks. (Résumé d'auteur

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Section: Discussionmentioning

confidence: 99%

A comparative test of ixodid tick identification by a network of European researchers

Estrada-Peña¹,

D’Amico

Palomar

et al. 2017

Ticks and Tick-borne Diseases

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“…It is transmitted to humans by ticks, most commonly by the species Amblyomma sculptum (formerly Amblyomma cajennense), which is considered to be the main vector of the disease in Brazil (2) .…”

Section: Introductionmentioning

confidence: 99%

A fatal case of Brazilian spotted fever in a non-endemic area in Brazil: the importance of having health professionals who understand the disease and its areas of transmission

Oliveira

Caldas

Colombo

et al. 2016

Rev. Soc. Bras. Med. Trop.

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“…Their identification down to the species level required a deeper analysis of morphologic descriptions of species belonging to this group. In fact, this has been the most controversial group within the genus Rhipicephalus (Pegram et al, 1987a) and more assembled information on both their morphological and genetic data is needed to take us closer to a consensus among the scientific community (Hekimoglu et al, 2016;Moraes-Filho et al, 2011;Nava et al, 2015). The R. sanguineus group includes 17 species (Camicas et al, 1998), so we addressed them individually, looking for candidate species descriptions suitable for these collected specimens.…”

Section: Tick Collections and Morphological Studiesmentioning

confidence: 99%

Tick (Acari: Ixodidae) infestations in cattle along Geba River basin in Guinea-Bissau

Zúquete

Coelho

Rosa

et al. 2017

Ticks and Tick-borne Diseases

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a b s t r a c tTick infestations are a major problem for animal production in tropical areas where prevention and control remain deficient. The present study sought to assess the awareness of traditional cattle producers towards the importance of ticks and aimed at the identification of tick species infesting bovines within the Geba River basin, Guinea-Bissau. Interviews with producers revealed that the majority directly correlates the presence of ticks with the occurrence of diseases in cattle. However, insufficient or inadequate control approaches prevail. A total of 337 ticks were collected on bovines at 18 different villages (10 during dry season, and 8 during rainy season). The tick species collected during the dry season were Rhipicephalus (Boophilus) geigyi (56.5%), followed by Amblyomma variegatum (23.3%), Rhipicephalus (Boophilus) annulatus (17.6%) and Hyalomma truncatum (1%). In the rainy season A. variegatum was the most collected (88.9%), followed by R. (Boophilus) geigyi (4.2%), R. (Boophilus) annulatus (3.4%), Rhipicephalus sanguineus group (2.8%) and H. truncatum (0.7%). To support species identification, segments of both cytochrome c oxidase I (COI) and 12S ribosomal RNA (12S) genes were sequenced and the data gathered were analysed by maximum likelihood and parsimony. Morphological and genetic data of individual specimens gathered in this study provide relevant information for future studies on tick population dynamics in the region. In addition, it led to a deeper characterization of R. sulcatus and a R. sanguineus-like specimen, exploring their genetic relationship with other R. sanguineus, which supports their classification as distinct species within R. sanguineus group.

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The taxonomic status of Rhipicephalus sanguineus (Latreille, 1806)

Cited by 147 publications

References 27 publications

A comparative test of ixodid tick identification by a network of European researchers

A comparative test of ixodid tick identification by a network of European researchers

A fatal case of Brazilian spotted fever in a non-endemic area in Brazil: the importance of having health professionals who understand the disease and its areas of transmission

Tick (Acari: Ixodidae) infestations in cattle along Geba River basin in Guinea-Bissau

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