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Parasitism by Amblyomma rotundatum on Teiidae lizards in the eastern part of the state of Acre, Brazil

Parasitismo de Amblyomma rotundatum em lagartos Teiidae no leste do Estado do Acre, Brasil

Abstract

The aim of the present study was to report on the occurrence of parasitism by Amblyomma rotundatum ticks on two species of Teiidae lizards and test the presence of rickettsiae in the collected ticks, in the western Brazilian Amazon region. Ticks were collected in July 2019, from a fragment of terra firme forest in the municipality of Senador Guiomard, Acre, Brazil. Two lizards that were infested by immature stages of ticks were caught using mist net and Tomahawk traps. Ectoparasites were collected manually, and the lizard specimens were identified and released at the same location where they had been caught. Three nymphs and 49 larvae were collected from Ameiva ameiva, while 25 nymphs and nine larvae were collected from Tupinambis cuzcoensis, which are both in the family Teiidae. The ticks were identified morphologically as belonging to the genus Amblyomma. Nymphs were identified at species level through molecular analysis, resulting in the tick species Amblyomma rotundatum. This is the first record of parasitism by the tick A. rotundatum on T. cuzcoensis lizard, and the first report of an association between A. rotundatum and the lizard species A. ameiva and T. cuzcoensis in Acre, in the western part of the Amazon region.

Keywords:
Ticks; ectoparasites; Squamata; hosts; Amazonia

Resumo

O objetivo do presente estudo foi relatar a ocorrência de parasitismo por carrapatos Amblyomma rotundatum em duas espécies de lagartos Teiidae, e testar a presença de riquétsias nos carrapatos coletados, na região da Amazônia Ocidental brasileira. Os carrapatos foram coletados em julho de 2019, em um fragmento de floresta de terra firme no município de Senador Guiomard, Acre, Brasil. Dois lagartos infestados por estágios imaturos de carrapatos foram capturados com rede de neblina e armadilhas Tomahawk. Os ectoparasitos foram coletados manualmente, e os espécimes de lagartos foram identificados e soltos no mesmo local onde foram capturados. Três ninfas e 49 larvas foram coletadas de Ameiva ameiva, enquanto 25 ninfas e nove larvas foram coletadas de Tupinambis cuzcoensis, ambas da família Teiidae. Os carrapatos foram identificados morfologicamente como pertencentes ao gênero Amblyomma. As ninfas foram identificadas em nível de espécie por meio de análise molecular, resultando na espécie de carrapato Amblyomma rotundatum. Este é o primeiro registro de parasitismo pelo carrapato A. rotundatum em lagarto T. cuzcoensis, e o primeiro relato de associação entre A. rotundatum e as espécies de lagartos A. ameiva e T. cuzcoensis, no Acre, na parte ocidental da região amazônica.

Palavras-chave:
Carrapatos; ectoparasitos; Squamata; hospedeiros; Amazônia

Amblyomma rotundatum Koch, 1844, is an ixodid tick with widespread biogeographical distribution extending from the southern part of the United States to northern Argentina (Labruna et al., 2005aLabruna MB, Camargo LMA, Terrassini FA, Ferreira F, Schumaker TTS, Camargo EP. Ticks (Acari: Ixodidae) from the state of Rondônia, Western Amazon, Brazil. Syst Appl Acarol 2005a; 10(1): 17-32. http://dx.doi.org/10.11158/saa.10.1.5.
http://dx.doi.org/10.11158/saa.10.1.5...
; Guglielmone & Nava, 2010Guglielmone AA, Nava S. Hosts of Amblyomma dissimile Koch, 1844 and Amblyomma rotundatum Koch, 1844 (Acari: ixodidae). Zootaxa 2010; 2541(1): 27-49. http://dx.doi.org/10.11646/zootaxa.2541.1.2.
http://dx.doi.org/10.11646/zootaxa.2541....
). It is a parthenogenetic species that is known to feed on ectothermic animals (amphibians and reptiles) (Labruna et al., 2004Labruna MB, Whitworth T, Bouyer DH, McBride JW, Camargo LMA, Camargo EP, et al. Rickettsia bellii and Rickettsia amblyommii in Amblyomma ticks from the state of Rondônia, Western Amazon, Brazil. J Med Entomol 2004; 41(6): 1073-1081. http://dx.doi.org/10.1603/0022-2585-41.6.1073. PMid:15605647.
http://dx.doi.org/10.1603/0022-2585-41.6...
).

Parasitism by A. rotundatum, in all its parasitic stages, has been most frequently recorded on frogs of the genus Rhinella and on the snake species Boa constrictor Linnaeus, 1758 (Guglielmone & Nava, 2010Guglielmone AA, Nava S. Hosts of Amblyomma dissimile Koch, 1844 and Amblyomma rotundatum Koch, 1844 (Acari: ixodidae). Zootaxa 2010; 2541(1): 27-49. http://dx.doi.org/10.11646/zootaxa.2541.1.2.
http://dx.doi.org/10.11646/zootaxa.2541....
). However, reports of A. rotundatum feeding on some mammals have also been published, including accidental findings on humans (Guglielmone & Nava, 2010Guglielmone AA, Nava S. Hosts of Amblyomma dissimile Koch, 1844 and Amblyomma rotundatum Koch, 1844 (Acari: ixodidae). Zootaxa 2010; 2541(1): 27-49. http://dx.doi.org/10.11646/zootaxa.2541.1.2.
http://dx.doi.org/10.11646/zootaxa.2541....
).

In Brazil, reports of parasitism by A. rotundatum on a variety of reptiles are becoming increasingly frequent, with especially to Squamata (Mendoza-Roldan et al., 2020Mendoza-Roldan J, Ribeiro SR, Castilho-Onofrio V, Grazziotin FG, Rocha B, Ferreto-Fiorillo B, et al. Mites and ticks of reptiles and amphibians in Brazil. Acta Trop 2020; 208: 105515. http://dx.doi.org/10.1016/j.actatropica.2020.105515. PMid:32407792.
http://dx.doi.org/10.1016/j.actatropica....
; Souza et al., 2020Souza VL, Martins TF, Melo-Sampaio PR, Labruna MB, Denardi-Ghelle SE, Guilherme E, et al. Infestation of free-ranging reptiles by ticks of the genus Amblyomma (Acari: Ixodidae) in the state of Acre, western Brazilian Amazon. Int J Acarol 2020; 46(8): 606-610. http://dx.doi.org/10.1080/01647954.2020.1846615.
http://dx.doi.org/10.1080/01647954.2020....
; Pacheco et al., 2021Pacheco RC, Martins TF, Semedo TBF, Morais DH, Soares HS, Melo ALT, et al. Richness of hard ticks (Acari: Ixodidae) from Eastern Brazilian Amazonia, state of Pará, Brazil. Int J Acarol 2021; 47(2): 159-169. http://dx.doi.org/10.1080/01647954.2021.1880475.
http://dx.doi.org/10.1080/01647954.2021....
; Dantas-Torres et al., 2022Dantas-Torres F, Picelli AM, Sales KGS, Sousa-Paula LC, Mejía P, Kaefer IL, et al. Ticks on reptiles and amphibians in Central Amazonia, with notes on rickettsial infections. Exp Appl Acarol 2022; 86(1): 129-144. http://dx.doi.org/10.1007/s10493-021-00682-8. PMid:34914021.
http://dx.doi.org/10.1007/s10493-021-006...
).

Reports of infestations by A. rotundatum on lizards are relatively rare in Brazil. In the Brazilian Amazon region, this parasite has been found feeding on species in the families Teiidae (on Ameiva ameiva Linnaeus, 1758, Kentropyx calcarata Spix, 1825, Tupinambis teguixin Linnaeus, 1758 species) and Tropiduridae (Plica plica Linnaeus, 1758, Uranoscodon superciliosus Linnaeus, 1758, Tropidurus sp.) (Labruna et al., 2005bLabruna MB, Terrassini FA, Camargo LMA. First Report of the Male of Amblyomma rotundatum (Acari: Ixodidae) from a Field-Collected Host. J Med Entomol 2005b; 42(6): 945-947. http://dx.doi.org/10.1603/0022-2585(2005)042[0945:FROTMO]2.0.CO;2. PMid:16465732.
http://dx.doi.org/10.1603/0022-2585(2005...
; Gomides et al., 2015Gomides SC, Maturano R, Daemon E, Garcia PCA, Rodrigues MT. New reports of Acari ectoparasites on lizards of the genus Plica (Squamata: Tropiduridae) and a list of parasites known from this genus. Salamandra (Frankf) 2015; 51(2): 195-198.; Zimmermann et al., 2018Zimmermann NP, Aguirre AAR, Rodrigues VS, Garcia MV, Medeiros JF, Blecha IMZ, et al. Wildlife species, Ixodid fauna and new host records for ticks in an Amazon forest area, Rondônia, Brazil. Rev Bras Parasitol Vet 2018; 27(2): 177-182. http://dx.doi.org/10.1590/s1984-296120180022. PMid:29846452.
http://dx.doi.org/10.1590/s1984-29612018...
; Pacheco et al., 2021Pacheco RC, Martins TF, Semedo TBF, Morais DH, Soares HS, Melo ALT, et al. Richness of hard ticks (Acari: Ixodidae) from Eastern Brazilian Amazonia, state of Pará, Brazil. Int J Acarol 2021; 47(2): 159-169. http://dx.doi.org/10.1080/01647954.2021.1880475.
http://dx.doi.org/10.1080/01647954.2021....
; Dantas-Torres et al., 2022Dantas-Torres F, Picelli AM, Sales KGS, Sousa-Paula LC, Mejía P, Kaefer IL, et al. Ticks on reptiles and amphibians in Central Amazonia, with notes on rickettsial infections. Exp Appl Acarol 2022; 86(1): 129-144. http://dx.doi.org/10.1007/s10493-021-00682-8. PMid:34914021.
http://dx.doi.org/10.1007/s10493-021-006...
). About these studies in Amazon, analysing the association of lizard-A. rotundatum-microorganism, Dantas-Torres et al. (2022)Dantas-Torres F, Picelli AM, Sales KGS, Sousa-Paula LC, Mejía P, Kaefer IL, et al. Ticks on reptiles and amphibians in Central Amazonia, with notes on rickettsial infections. Exp Appl Acarol 2022; 86(1): 129-144. http://dx.doi.org/10.1007/s10493-021-00682-8. PMid:34914021.
http://dx.doi.org/10.1007/s10493-021-006...
, obtained positive result for bacteria from the genus Rickettsia in A. rotundatum.

The Brazilian state of Acre forms part of Amazonia, with a variety of ecosystems and habitats, and diversity high in the reptile fauna (Bernarde et al., 2013Bernarde PS, Albuquerque S, Miranda DB, Turci LCB. Herpetofauna da floresta do baixo rio Moa em Cruzeiro do Sul, Acre - Brasil. Biota Neotrop 2013; 13(1): 220-244. http://dx.doi.org/10.1590/S1676-06032013000100023.
http://dx.doi.org/10.1590/S1676-06032013...
). Knowledge about ticks that feed on reptiles in this state is limited to recent publications (Mendoza-Roldan et al., 2020Mendoza-Roldan J, Ribeiro SR, Castilho-Onofrio V, Grazziotin FG, Rocha B, Ferreto-Fiorillo B, et al. Mites and ticks of reptiles and amphibians in Brazil. Acta Trop 2020; 208: 105515. http://dx.doi.org/10.1016/j.actatropica.2020.105515. PMid:32407792.
http://dx.doi.org/10.1016/j.actatropica....
; Souza et al., 2020Souza VL, Martins TF, Melo-Sampaio PR, Labruna MB, Denardi-Ghelle SE, Guilherme E, et al. Infestation of free-ranging reptiles by ticks of the genus Amblyomma (Acari: Ixodidae) in the state of Acre, western Brazilian Amazon. Int J Acarol 2020; 46(8): 606-610. http://dx.doi.org/10.1080/01647954.2020.1846615.
http://dx.doi.org/10.1080/01647954.2020....
). Moreover, only Souza et al. (2020)Souza VL, Martins TF, Melo-Sampaio PR, Labruna MB, Denardi-Ghelle SE, Guilherme E, et al. Infestation of free-ranging reptiles by ticks of the genus Amblyomma (Acari: Ixodidae) in the state of Acre, western Brazilian Amazon. Int J Acarol 2020; 46(8): 606-610. http://dx.doi.org/10.1080/01647954.2020.1846615.
http://dx.doi.org/10.1080/01647954.2020....
has reported parasitism of a lizard species by a tick species of the genus Amblyomma. The aim of the present study was to report on the occurrence of parasitism by A. rotundatum ticks on two species of Teiidae lizards and test the presence of rickettsiae in the collected ticks, in the eastern part of the state of Acre, in the western Brazilian Amazon region.

Tick collection was performed on July 12, 2019, in a reserve belonging to the Federal University of Acre (Catuaba Experimental Farm: 10°03’41” S; 67°36’09” W). This area consists of a fragment of terra firme forest, located in the municipality of Senador Guiomard, in the eastern part of the state of Acre, Brazil (Silveira et al., 2020Silveira M, Souza AF, Ribeiro VMF, Castro W, Tojal SD. Fazenda Experimental Catuaba: o seringal que virou laboratório vivo. In: Silveira M, Guilherme E, Vieira LJS, editors. Fazenda Experimental Catuaba: o seringal que virou laboratório-vivo em uma paisagem fragmentada no Acre. Rio Branco: Stricto Sensu; 2020. p. 46-70. http://dx.doi.org/10.35170/ss.ed.9786586283402.02
http://dx.doi.org/10.35170/ss.ed.9786586...
) (Figure 1). The hosts were caught in traps that are unusual for this taxon: one lizard (A. ameiva) was caught in a mist net and the other (Tupinambis cuzcoensis) in a Tomahawk trap (Figure 2). Ameiva ameiva lizard was being preyed on by a bird-of-prey that bumped into the mist net, releasing its prey into it. Both lizards were infested by immature stages of ticks, which were collected manually using tweezers and placed inside plastic tubes containing 70% alcohol (ethanol). The lizards were identified using a guide and a recent paper (Vitt & Zani, 1998Vitt LJ, Zani PA. Ecological relationships among sympatric lizards in a transitional forest in the northern Amazon of Brazil. J Trop Ecol 1998; 14(1): 63-86. http://dx.doi.org/10.1017/S0266467498000066.
http://dx.doi.org/10.1017/S0266467498000...
; Silva et al., 2018Silva MB, Ribeiro-Júnior MA, Ávila-Pires TCS. A New Species of Tupinambis Daudin, 1802 (Squamata: Teiidae) from Central South America. J Herpetol 2018; 52(1): 94-110. http://dx.doi.org/10.1670/16-036.
http://dx.doi.org/10.1670/16-036...
) and then released at the same capture site. The specimens were collected under authorization from the Chico Mendes Institute for Biodiversity Conservation: SisBio license number 69.943-4.

Figure 1
(A) Map showing the location of the municipality of Senador Guiomard, Acre, Brazil; (B) Location of the collection area.
Figure 2
(A) Tupinambis cuzcoensis lizard; (B) Ameiva ameiva lizard.

The ticks thus collected were transported to the laboratory of the School of Veterinary Medicine and Animal Science of the University of São Paulo for morphological examination with the aid of a stereoscopic magnifying glass and a taxonomic key for nymphs (Martins et al., 2010Martins TF, Onofrio VC, Barros-Battesti DM, Labruna MB. Nymphs of the genus Amblyomma (Acari: Ixodidae) of Brazil: descriptions, redescriptions, and identification key. Ticks Tick Borne Dis 2010; 1(2): 75-99. http://dx.doi.org/10.1016/j.ttbdis.2010.03.002. PMid:21771514.
http://dx.doi.org/10.1016/j.ttbdis.2010....
) and larvae by specialist. Subsequently, larvae and nymphs were taken to the Entomology Laboratory of the Oswaldo Cruz Foundation of Rondônia for molecular analysis.

Tick DNA was extracted using the guanidinium isothiocyanate and phenol/chloroform (Sangioni et al., 2005Sangioni LA, Horta MC, Vianna MCB, Gennari SM, Soares RM, Galvão MAM, et al. Rickettsial infection in animals and Brazilian spotted fever endemicity. Emerg Infect Dis 2005; 11(2): 265-270. http://dx.doi.org/10.3201/eid1102.040656. PMid:15752445.
http://dx.doi.org/10.3201/eid1102.040656...
). The extracted DNA was stored at Fiocruz Rondônia, Porto Velho, Rondônia state. For molecular identification of tick species, the DNA samples were submitted to Polymerase Chain Reaction (PCR) to amplify fragments of three genes: one from 16S mitochondrial rDNA of 460 bp (Mangold et al., 1998Mangold AJ, Bargues MD, Mas-Coma S. Mitochondrial 16S rDNA sequences and phylogenetic relationships of species of Rhipicephalus and other tick genera among Metastriata (Acari: ixodidae). Parasitol Res 1998; 84(6): 478-484. http://dx.doi.org/10.1007/s004360050433. PMid:9660138.
http://dx.doi.org/10.1007/s004360050433...
), another fragment of 649 bp from ribossomal Internal Transcribed Spacer 2 (ITS2) gene, using ITS-2F e ITS-2R primers (Csordas et al., 2016Csordas BG, Garcia MV, Cunha RC, Giachetto PF, Blecha IMZ, Andreotti R. New insights from molecular characterization of the tick Rhipicephalus (Boophilus) microplus in Brazil. Rev Bras Parasitol Vet 2016; 25(3): 317-326. http://dx.doi.org/10.1590/S1984-29612016053. PMid:27579530.
http://dx.doi.org/10.1590/S1984-29612016...
), and other fragment of 658 bp of the mitochondrial gene cytochrome oxidase I (COI) (Folmer et al., 1994Folmer O, Black M, Hoeh W, Lutz R, Vrijenhoek R. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Mol Mar Biol Biotechnol 1994; 3(5): 294-299. PMid:7881515.). Other PCR assays were performed to analyze the presence of Rickettsia DNA, with PCRs to amplify a 401-bp fragment of the citrate synthase gene (gltA), which is present in all species of Rickettsia (Labruna et al., 2004Labruna MB, Whitworth T, Bouyer DH, McBride JW, Camargo LMA, Camargo EP, et al. Rickettsia bellii and Rickettsia amblyommii in Amblyomma ticks from the state of Rondônia, Western Amazon, Brazil. J Med Entomol 2004; 41(6): 1073-1081. http://dx.doi.org/10.1603/0022-2585-41.6.1073. PMid:15605647.
http://dx.doi.org/10.1603/0022-2585-41.6...
).

PCR products with specific bands on agarose gels were purified using ExoSAP-ITTM (Thermo Fisher Scientific, USA) and were sequenced on the DNA sequencing platform of the René Rachou Institute, Fiocruz Minas Gerais, Fundação Oswaldo Cruz, Brazil.

The Sanger method (Sanger et al., 1977Sanger F, Nicklen S, Coulson AR. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci USA 1977; 74(12): 5463-5467. http://dx.doi.org/10.1073/pnas.74.12.5463. PMid:271968.
http://dx.doi.org/10.1073/pnas.74.12.546...
) was applied, in replicate, using an ABI 3730xL sequencer (Applied Biosystems, USA). A phylogenetic tree was constructed to compare the nucleotide sequences from ticks, with the sequences of Amblyomma spp. in GenBank. The evolutionary history was inferred by using the Maximum Likelihood method and Tamura 3-parameter model (Tamura, 1992Tamura K. Estimation of the number of nucleotide substitutions when there are strong transition-transversion and G+C-content biases. Mol Biol Evol 1992; 9(4): 678-687. http://dx.doi.org/10.1093/oxfordjournals.molbev.a040752PMid:1630306. PMid:1630306.
http://dx.doi.org/10.1093/oxfordjournals...
). The bootstrap consensus tree inferred from 500 replicates is taken to represent the evolutionary history of the taxa analyzed. Branches corresponding to partitions reproduced in less than 50% bootstrap replicates are collapsed. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (500 replicates) are shown next to the branches. Initial tree(s) for the heuristic search were obtained automatically by applying Neighbor-Join and BioNJ algorithms to a matrix of pairwise distances estimated using the Maximum Composite Likelihood (MCL) approach, and then selecting the topology with superior log likelihood value. A discrete Gamma distribution was used to model evolutionary rate differences among sites (5 categories (+G, parameter = 0.2085)). This analysis involved 17 nucleotide sequences. All positions containing gaps and missing data were eliminated (complete deletion option). There was a total of 398 positions in the final dataset. Evolutionary analyses were conducted in MEGA X (Kumar et al., 2018Kumar S, Stecher G, Li M, Knyaz C, Tamura K. MEGA X: Molecular Evolutionary Genetics Analysis across Computing Platforms. Mol Biol Evol 2018; 35(6): 1547-1549. http://dx.doi.org/10.1093/molbev/msy096. PMid:29722887.
http://dx.doi.org/10.1093/molbev/msy096...
).

Eighty-six ticks were collected from the lizards: three nymphs (N) and 49 larvae (L) were collected from A. ameiva (Linnaeus, 1758), while 25 nymphs and nine larvae were collected from T. cuzcoensis Murphy, Jowers, Lehtinen, Charles, Colli, Peres, Hendry & Pyron, 2016. Both of these lizards belong to the family Teiidae (Squamata, Sauria). All the ticks were morphologically identified as belonging to the genus Amblyomma.

Individual nymphs (3 N found on A. ameiva, 25 N on T. cuzcoensis) and pools containing 9-10 larval specimens (5 pool-L on A. ameiva, 1 pool-L on T. cuzcoensis) (n = 34) were sent for amplification of the COI gene. However, only 26 PCR products from the fragment of this gene were observed on the agarose gel.

A total of 19 sequences were identical to A. rotundatum partial COI sequences. The other 7 sequences obtained were of poor quality and could not be compared with other COI sequences in GenBank. Among the 19 sequences, 13 presented a sequence of 658 bp that was 100% identical to A. rotundatum isolates from the state of Amapá, in the eastern Brazilian Amazon region. These 13 sequences were named here as ARAcre1 (GenBank: MH105048.1): three larval pools (10 specimens each) and two nymphs of A. ameiva; and eight nymphs of T. cuzcoensis. The other 6 sequences were 100% identical to A. rotundatum isolates from Peru (western Amazon region), named here as ARAcre2 (GenBank: KU720275.1): six nymphs of T. cuzcoensis (Figure 3). The ARAcre1 and ARAcre2 sequences are 4 single nucleotide polymorphisms (SNPs) from the consensus sequence of the Peru isolates. No amplification of DNA from Rickettsia spp. was observed on the agarose gel, from the tick samples analyzed.

Figure 3
Phylogenetic tree of the Amblyomma rotundatum partial sequences ARAcre1 and ARAcre2. The maximum likelihood method was used to infer the evolutionary history of the COI sequences of this study and other sequences found in GenBank.

According to the literature, A. rotundatum seems to be a species that is widely distributed in Brazil. Its presence has been reported in all regions of the country, encompassing the states of Acre, Amazonas, Rondônia, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Pará, Paraná, Maranhão, Pernambuco, Ceará, Rio Grande do Sul, Rio de Janeiro, Santa Catarina and São Paulo (Labruna et al., 2005aLabruna MB, Camargo LMA, Terrassini FA, Ferreira F, Schumaker TTS, Camargo EP. Ticks (Acari: Ixodidae) from the state of Rondônia, Western Amazon, Brazil. Syst Appl Acarol 2005a; 10(1): 17-32. http://dx.doi.org/10.11158/saa.10.1.5.
http://dx.doi.org/10.11158/saa.10.1.5...
; Polo et al., 2021Polo G, Luz HL, Regolin AL, Martins TF, Winck GR, Silva HR, et al. Distribution modeling of Amblyomma rotundatum and Amblyomma dissimile in Brazil: estimates of environmental suitability. Parasitol Res 2021; 120(3): 797-806. http://dx.doi.org/10.1007/s00436-020-06924-9. PMid:33068151.
http://dx.doi.org/10.1007/s00436-020-069...
).

Recently, a distribution model for the populations of A. rotundatum and A. dissimile was constructed by Polo et al. (2021)Polo G, Luz HL, Regolin AL, Martins TF, Winck GR, Silva HR, et al. Distribution modeling of Amblyomma rotundatum and Amblyomma dissimile in Brazil: estimates of environmental suitability. Parasitol Res 2021; 120(3): 797-806. http://dx.doi.org/10.1007/s00436-020-06924-9. PMid:33068151.
http://dx.doi.org/10.1007/s00436-020-069...
. They demonstrated that the species A. rotundatum presented greater aptitude for dispersion in all of Brazil’s biomes, whereas A. dissimile was restricted to the Amazon and Pantanal biomes. From this perspective of the distribution of A. rotundatum and A. dissimile, which are close-related tick species, the importance of our study is that it provides molecular confirmation that nymphs of A. rotundatum were found in the southwestern Amazon region. It is noteworthy that although we have molecularly detected A. rotundatum larvae parasitizing A. ameiva, it is not possible to affirm that all the thirty larvae belong to this tick species, because the PCRs were performed in three pools of larvae DNA, and larvae were not tested individually.

Regarding the hosts that were found, Teiidae are diurnal terrestrial lizards that are commonly encountered foraging in cleared and transitional areas of the Amazon Forest, Cerrado and Caatinga (Vitt & Zani, 1998Vitt LJ, Zani PA. Ecological relationships among sympatric lizards in a transitional forest in the northern Amazon of Brazil. J Trop Ecol 1998; 14(1): 63-86. http://dx.doi.org/10.1017/S0266467498000066.
http://dx.doi.org/10.1017/S0266467498000...
). The species of this study, popularly known in the region as "calango" (A. ameiva) and "teju-açú" (T. cuzcoensis), were found close to areas that had been altered for crop cultivation. Parasitism by A. rotundatum in the Teiidae species A. ameiva in the Neotropical region (Guglielmone & Nava, 2010Guglielmone AA, Nava S. Hosts of Amblyomma dissimile Koch, 1844 and Amblyomma rotundatum Koch, 1844 (Acari: ixodidae). Zootaxa 2010; 2541(1): 27-49. http://dx.doi.org/10.11646/zootaxa.2541.1.2.
http://dx.doi.org/10.11646/zootaxa.2541....
), including in Brazil, is already known, with reports from the Amazon biome (Dantas-Torres et al., 2022Dantas-Torres F, Picelli AM, Sales KGS, Sousa-Paula LC, Mejía P, Kaefer IL, et al. Ticks on reptiles and amphibians in Central Amazonia, with notes on rickettsial infections. Exp Appl Acarol 2022; 86(1): 129-144. http://dx.doi.org/10.1007/s10493-021-00682-8. PMid:34914021.
http://dx.doi.org/10.1007/s10493-021-006...
) and from a sandbar terrain (restinga), on the coast of the state of Rio de Janeiro (Viana et al., 2012Viana LA, Winck GR, Almeida-Santos M, Telles FBS, Gazêta GS, Rocha CFD. New host records for Amblyomma rotundatum (Acari: Ixodidae) from Grussaí restinga, Rio de Janeiro, Brazil. Rev Bras Parasitol Vet 2012; 21(3): 319-322. http://dx.doi.org/10.1590/S1984-29612012000300028. PMid:23070450.
http://dx.doi.org/10.1590/S1984-29612012...
). Silva et al. (2018)Silva MB, Ribeiro-Júnior MA, Ávila-Pires TCS. A New Species of Tupinambis Daudin, 1802 (Squamata: Teiidae) from Central South America. J Herpetol 2018; 52(1): 94-110. http://dx.doi.org/10.1670/16-036.
http://dx.doi.org/10.1670/16-036...
provided a description of a new species of lizard of the genus Tupinambis in the central region of South America and presented a new distribution map for the species of the genus Tupinambis. They demonstrated that the only species of this genus with distribution in Acre is T. cuzcoensis, and not T. teguixin, how it was described. Thus, the present study provides the first record on the tick-host relationship between A. rotundatum and the Teiidae species T. cuzcoensis in the Amazon, as well as the first report on the association between A. rotundatum and both of these Teiidae lizards (A. ameiva and T. cuzcoensis) in the state of Acre.

The findings regarding T. cuzcoensis nymphs are also of interest because the specimen examined here was parasitized with two distinct COI partial sequences of A. rotundatum, which had previously only been found in two separate localities in the Amazon region, (state of Amapá, in the eastern Amazon region of northern Brazil; and Peru; in the western Amazon region). This question is one of the limitations of the present study because answering it requires more robust analyses, including the thorough analysis of other genes, such as 12S rRNA, 16S rRNA and ITS2. Here, we can propose further investigations on the identification of distinct genotypes of this tick species and the limiting factors of its populations.

This study is the first record of parasitism by A. rotundatum tick on T. cuzcoensis lizard, a Teiidae lizard species, and the first report on the association between A. rotundatum and both of the lizard species A. ameiva and T. cuzcoensis in Acre, in the western Brazilian Amazon region. Considering that studies on ticks in association with reptiles in the Amazon region are uncommon, the present study adds knowledge about the biology and ecology of this tick species, for which lifecycle and preferred-host information is sparse.

Acknowledgements

This study was supported by the National Epidemiological Institute for the Western Amazon Region (Instituto Nacional de Epidemiologia na Amazônia Ocidental, INCT-EpiAmO), National Council for Scientific and Technological Development (Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq) and Pro-Rectorate for Research and Postgraduation of the Federal University of Acre (Universidade Federal do Acre, UFAC). Special thanks to the Dr. Edson Guilherme, and students Tallysson Cavalcante Amorim and Raissa Souza de Morais for their assistance in the fieldwork.

  • How to cite: Tojal SD, Costa IN, Aguirre AAR, Martins TF, Labruna MB, Meneguetti DUO, et al. Parasitism by Amblyomma rotundatum on Teiidae lizards in the eastern part of the state of Acre, Brazil. Braz J Vet Parasitol 2023; 32(3): e004923. https://doi.org/10.1590/S1984-29612023050

References

  • Bernarde PS, Albuquerque S, Miranda DB, Turci LCB. Herpetofauna da floresta do baixo rio Moa em Cruzeiro do Sul, Acre - Brasil. Biota Neotrop 2013; 13(1): 220-244. http://dx.doi.org/10.1590/S1676-06032013000100023
    » http://dx.doi.org/10.1590/S1676-06032013000100023
  • Csordas BG, Garcia MV, Cunha RC, Giachetto PF, Blecha IMZ, Andreotti R. New insights from molecular characterization of the tick Rhipicephalus (Boophilus) microplus in Brazil. Rev Bras Parasitol Vet 2016; 25(3): 317-326. http://dx.doi.org/10.1590/S1984-29612016053 PMid:27579530.
    » http://dx.doi.org/10.1590/S1984-29612016053
  • Dantas-Torres F, Picelli AM, Sales KGS, Sousa-Paula LC, Mejía P, Kaefer IL, et al. Ticks on reptiles and amphibians in Central Amazonia, with notes on rickettsial infections. Exp Appl Acarol 2022; 86(1): 129-144. http://dx.doi.org/10.1007/s10493-021-00682-8 PMid:34914021.
    » http://dx.doi.org/10.1007/s10493-021-00682-8
  • Folmer O, Black M, Hoeh W, Lutz R, Vrijenhoek R. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Mol Mar Biol Biotechnol 1994; 3(5): 294-299. PMid:7881515.
  • Gomides SC, Maturano R, Daemon E, Garcia PCA, Rodrigues MT. New reports of Acari ectoparasites on lizards of the genus Plica (Squamata: Tropiduridae) and a list of parasites known from this genus. Salamandra (Frankf) 2015; 51(2): 195-198.
  • Guglielmone AA, Nava S. Hosts of Amblyomma dissimile Koch, 1844 and Amblyomma rotundatum Koch, 1844 (Acari: ixodidae). Zootaxa 2010; 2541(1): 27-49. http://dx.doi.org/10.11646/zootaxa.2541.1.2
    » http://dx.doi.org/10.11646/zootaxa.2541.1.2
  • Kumar S, Stecher G, Li M, Knyaz C, Tamura K. MEGA X: Molecular Evolutionary Genetics Analysis across Computing Platforms. Mol Biol Evol 2018; 35(6): 1547-1549. http://dx.doi.org/10.1093/molbev/msy096 PMid:29722887.
    » http://dx.doi.org/10.1093/molbev/msy096
  • Labruna MB, Camargo LMA, Terrassini FA, Ferreira F, Schumaker TTS, Camargo EP. Ticks (Acari: Ixodidae) from the state of Rondônia, Western Amazon, Brazil. Syst Appl Acarol 2005a; 10(1): 17-32. http://dx.doi.org/10.11158/saa.10.1.5
    » http://dx.doi.org/10.11158/saa.10.1.5
  • Labruna MB, Terrassini FA, Camargo LMA. First Report of the Male of Amblyomma rotundatum (Acari: Ixodidae) from a Field-Collected Host. J Med Entomol 2005b; 42(6): 945-947. http://dx.doi.org/10.1603/0022-2585(2005)042[0945:FROTMO]2.0.CO;2 PMid:16465732.
    » http://dx.doi.org/10.1603/0022-2585(2005)042[0945:FROTMO]2.0.CO;2
  • Labruna MB, Whitworth T, Bouyer DH, McBride JW, Camargo LMA, Camargo EP, et al. Rickettsia bellii and Rickettsia amblyommii in Amblyomma ticks from the state of Rondônia, Western Amazon, Brazil. J Med Entomol 2004; 41(6): 1073-1081. http://dx.doi.org/10.1603/0022-2585-41.6.1073 PMid:15605647.
    » http://dx.doi.org/10.1603/0022-2585-41.6.1073
  • Mangold AJ, Bargues MD, Mas-Coma S. Mitochondrial 16S rDNA sequences and phylogenetic relationships of species of Rhipicephalus and other tick genera among Metastriata (Acari: ixodidae). Parasitol Res 1998; 84(6): 478-484. http://dx.doi.org/10.1007/s004360050433 PMid:9660138.
    » http://dx.doi.org/10.1007/s004360050433
  • Martins TF, Onofrio VC, Barros-Battesti DM, Labruna MB. Nymphs of the genus Amblyomma (Acari: Ixodidae) of Brazil: descriptions, redescriptions, and identification key. Ticks Tick Borne Dis 2010; 1(2): 75-99. http://dx.doi.org/10.1016/j.ttbdis.2010.03.002 PMid:21771514.
    » http://dx.doi.org/10.1016/j.ttbdis.2010.03.002
  • Mendoza-Roldan J, Ribeiro SR, Castilho-Onofrio V, Grazziotin FG, Rocha B, Ferreto-Fiorillo B, et al. Mites and ticks of reptiles and amphibians in Brazil. Acta Trop 2020; 208: 105515. http://dx.doi.org/10.1016/j.actatropica.2020.105515 PMid:32407792.
    » http://dx.doi.org/10.1016/j.actatropica.2020.105515
  • Pacheco RC, Martins TF, Semedo TBF, Morais DH, Soares HS, Melo ALT, et al. Richness of hard ticks (Acari: Ixodidae) from Eastern Brazilian Amazonia, state of Pará, Brazil. Int J Acarol 2021; 47(2): 159-169. http://dx.doi.org/10.1080/01647954.2021.1880475
    » http://dx.doi.org/10.1080/01647954.2021.1880475
  • Polo G, Luz HL, Regolin AL, Martins TF, Winck GR, Silva HR, et al. Distribution modeling of Amblyomma rotundatum and Amblyomma dissimile in Brazil: estimates of environmental suitability. Parasitol Res 2021; 120(3): 797-806. http://dx.doi.org/10.1007/s00436-020-06924-9 PMid:33068151.
    » http://dx.doi.org/10.1007/s00436-020-06924-9
  • Sanger F, Nicklen S, Coulson AR. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci USA 1977; 74(12): 5463-5467. http://dx.doi.org/10.1073/pnas.74.12.5463 PMid:271968.
    » http://dx.doi.org/10.1073/pnas.74.12.5463
  • Sangioni LA, Horta MC, Vianna MCB, Gennari SM, Soares RM, Galvão MAM, et al. Rickettsial infection in animals and Brazilian spotted fever endemicity. Emerg Infect Dis 2005; 11(2): 265-270. http://dx.doi.org/10.3201/eid1102.040656 PMid:15752445.
    » http://dx.doi.org/10.3201/eid1102.040656
  • Silva MB, Ribeiro-Júnior MA, Ávila-Pires TCS. A New Species of Tupinambis Daudin, 1802 (Squamata: Teiidae) from Central South America. J Herpetol 2018; 52(1): 94-110. http://dx.doi.org/10.1670/16-036
    » http://dx.doi.org/10.1670/16-036
  • Silveira M, Souza AF, Ribeiro VMF, Castro W, Tojal SD. Fazenda Experimental Catuaba: o seringal que virou laboratório vivo. In: Silveira M, Guilherme E, Vieira LJS, editors. Fazenda Experimental Catuaba: o seringal que virou laboratório-vivo em uma paisagem fragmentada no Acre Rio Branco: Stricto Sensu; 2020. p. 46-70. http://dx.doi.org/10.35170/ss.ed.9786586283402.02
    » http://dx.doi.org/10.35170/ss.ed.9786586283402.02
  • Souza VL, Martins TF, Melo-Sampaio PR, Labruna MB, Denardi-Ghelle SE, Guilherme E, et al. Infestation of free-ranging reptiles by ticks of the genus Amblyomma (Acari: Ixodidae) in the state of Acre, western Brazilian Amazon. Int J Acarol 2020; 46(8): 606-610. http://dx.doi.org/10.1080/01647954.2020.1846615
    » http://dx.doi.org/10.1080/01647954.2020.1846615
  • Tamura K. Estimation of the number of nucleotide substitutions when there are strong transition-transversion and G+C-content biases. Mol Biol Evol 1992; 9(4): 678-687. http://dx.doi.org/10.1093/oxfordjournals.molbev.a040752PMid:1630306 PMid:1630306.
    » http://dx.doi.org/10.1093/oxfordjournals.molbev.a040752PMid:1630306
  • Viana LA, Winck GR, Almeida-Santos M, Telles FBS, Gazêta GS, Rocha CFD. New host records for Amblyomma rotundatum (Acari: Ixodidae) from Grussaí restinga, Rio de Janeiro, Brazil. Rev Bras Parasitol Vet 2012; 21(3): 319-322. http://dx.doi.org/10.1590/S1984-29612012000300028 PMid:23070450.
    » http://dx.doi.org/10.1590/S1984-29612012000300028
  • Vitt LJ, Zani PA. Ecological relationships among sympatric lizards in a transitional forest in the northern Amazon of Brazil. J Trop Ecol 1998; 14(1): 63-86. http://dx.doi.org/10.1017/S0266467498000066
    » http://dx.doi.org/10.1017/S0266467498000066
  • Zimmermann NP, Aguirre AAR, Rodrigues VS, Garcia MV, Medeiros JF, Blecha IMZ, et al. Wildlife species, Ixodid fauna and new host records for ticks in an Amazon forest area, Rondônia, Brazil. Rev Bras Parasitol Vet 2018; 27(2): 177-182. http://dx.doi.org/10.1590/s1984-296120180022 PMid:29846452.
    » http://dx.doi.org/10.1590/s1984-296120180022

Publication Dates

  • Publication in this collection
    01 Sept 2023
  • Date of issue
    2023

History

  • Received
    16 Mar 2023
  • Accepted
    04 July 2023
Colégio Brasileiro de Parasitologia Veterinária FCAV/UNESP - Departamento de Patologia Veterinária, Via de acesso Prof. Paulo Donato Castellane s/n, Zona Rural, , 14884-900 Jaboticabal - SP, Brasil, Fone: (16) 3209-7100 RAMAL 7934 - Jaboticabal - SP - Brazil
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