The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis
The goal of this study was to clarify the taxonomic status of the Ixodes ricinus complex in the Southern Cone of America, by using morphological characters and molecular markers (mitochondrial 16SrDNA and cox1 genes). The morphological analysis indicates that three different taxa of the I. ricinus c...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Springer
2019
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| Online Access: | https://link.springer.com/article/10.1007%2Fs00436-019-06470-z http://hdl.handle.net/20.500.12123/6457 https://doi.org/10.1007/s00436-019-06470-z |
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| author | Saracho Bottero, Maria Noelia Venzal, José Manuel Tarragona, Evelina Luisa Thompson, Carolina Soledad Mangold, Atilio Jose Beati, Lorenza Guglielmone, Alberto Nava, Santiago |
| author_browse | Beati, Lorenza Guglielmone, Alberto Mangold, Atilio Jose Nava, Santiago Saracho Bottero, Maria Noelia Tarragona, Evelina Luisa Thompson, Carolina Soledad Venzal, José Manuel |
| author_facet | Saracho Bottero, Maria Noelia Venzal, José Manuel Tarragona, Evelina Luisa Thompson, Carolina Soledad Mangold, Atilio Jose Beati, Lorenza Guglielmone, Alberto Nava, Santiago |
| author_sort | Saracho Bottero, Maria Noelia |
| collection | INTA Digital |
| description | The goal of this study was to clarify the taxonomic status of the Ixodes ricinus complex in the Southern Cone of America, by using morphological characters and molecular markers (mitochondrial 16SrDNA and cox1 genes). The morphological analysis indicates that three different taxa of the I. ricinus complex occur in this region: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis. The most prominent diagnostic character among them is the size of scutal punctations in both male and female ticks. In the males of Ixodes sp. cf. I. affinis, the punctations on the central field and along the median marginal groove of the scutum are clearly larger than in the males of I. aragaoi and I. pararicinus, while the punctations of I. aragaoi are larger but less numerous than in I. pararicinus. The punctations in Ixodes sp. cf. I. affinis females are larger and deeper than in females of I. aragaoi and I. pararicinus, and those of I. aragaoi are slightly larger than in I. pararicinus. The length of the lateral posterior denticles of the male hypostome is comparatively longer in I. aragaoi than in the other two species, and longer in Ixodes sp. cf. I. affinis than in I. pararicinus. In the 16S analysis, I. pararicinus and I. aragaoi are monophyletic (99% and 98% bootstrap support, respectively), while Ixodes cf. I. affinis does not represent a single lineage. In the cox1 analysis, both I. pararicinus and I. aragaoi are well-defined taxa, but the bootstrap support for Ixodes sp. cf. I. affinis is low (67%). In general, there are considerable 16SrRNA differences among lineages of Ixodes sp. cf. I. affinis from different geographical areas. These results may be indicative of the existence of different species. The populations morphologically compatible with I. affinis from Argentina, Colombia, Panama, Belize, and USA should be provisionally named as Ixodes sp. cf. I. affinis until an integrative taxonomic work with further evidence redefines whether or not this taxon actually represents a species complex. |
| format | info:ar-repo/semantics/artículo |
| id | INTA6457 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA64572019-12-05T13:09:59Z The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis Saracho Bottero, Maria Noelia Venzal, José Manuel Tarragona, Evelina Luisa Thompson, Carolina Soledad Mangold, Atilio Jose Beati, Lorenza Guglielmone, Alberto Nava, Santiago Ixodidae Ixodes ricinus Identificación América del Sur Marcadores Genéticos Filogenia Identification South America Genetic Markers Phylogeny Ixodes pararicinus Ixodes aragaoi Ixodes sp. cf. I. affinis Marcadores Moleculares The goal of this study was to clarify the taxonomic status of the Ixodes ricinus complex in the Southern Cone of America, by using morphological characters and molecular markers (mitochondrial 16SrDNA and cox1 genes). The morphological analysis indicates that three different taxa of the I. ricinus complex occur in this region: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis. The most prominent diagnostic character among them is the size of scutal punctations in both male and female ticks. In the males of Ixodes sp. cf. I. affinis, the punctations on the central field and along the median marginal groove of the scutum are clearly larger than in the males of I. aragaoi and I. pararicinus, while the punctations of I. aragaoi are larger but less numerous than in I. pararicinus. The punctations in Ixodes sp. cf. I. affinis females are larger and deeper than in females of I. aragaoi and I. pararicinus, and those of I. aragaoi are slightly larger than in I. pararicinus. The length of the lateral posterior denticles of the male hypostome is comparatively longer in I. aragaoi than in the other two species, and longer in Ixodes sp. cf. I. affinis than in I. pararicinus. In the 16S analysis, I. pararicinus and I. aragaoi are monophyletic (99% and 98% bootstrap support, respectively), while Ixodes cf. I. affinis does not represent a single lineage. In the cox1 analysis, both I. pararicinus and I. aragaoi are well-defined taxa, but the bootstrap support for Ixodes sp. cf. I. affinis is low (67%). In general, there are considerable 16SrRNA differences among lineages of Ixodes sp. cf. I. affinis from different geographical areas. These results may be indicative of the existence of different species. The populations morphologically compatible with I. affinis from Argentina, Colombia, Panama, Belize, and USA should be provisionally named as Ixodes sp. cf. I. affinis until an integrative taxonomic work with further evidence redefines whether or not this taxon actually represents a species complex. EEA Rafaela Fil: Saracho Bottero, Maria Noelia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Venzal, José Manuel. Universidad de la República. CENUR Litoral Norte-Salto. Facultad de Veterinaria. Laboratorio de Vectores y Enfermedades Transmitidas; Uruguay Fil: Tarragona, Evelina Luisa. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Thompson, Carolina Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Mangold, Atilio Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Beati, Lorenza. Georgia Southern University. Institute for Coastal Plain Science. United States National Tick Collection; Estados Unidos Fil: Guglielmone, Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Nava, Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2019-12-05T13:07:40Z 2019-12-05T13:07:40Z 2019-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007%2Fs00436-019-06470-z http://hdl.handle.net/20.500.12123/6457 0932-0113 1432-1955 https://doi.org/10.1007/s00436-019-06470-z eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Parasitology Research : 1–12 (First Online: 28 November 2019) |
| spellingShingle | Ixodidae Ixodes ricinus Identificación América del Sur Marcadores Genéticos Filogenia Identification South America Genetic Markers Phylogeny Ixodes pararicinus Ixodes aragaoi Ixodes sp. cf. I. affinis Marcadores Moleculares Saracho Bottero, Maria Noelia Venzal, José Manuel Tarragona, Evelina Luisa Thompson, Carolina Soledad Mangold, Atilio Jose Beati, Lorenza Guglielmone, Alberto Nava, Santiago The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis |
| title | The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis |
| title_full | The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis |
| title_fullStr | The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis |
| title_full_unstemmed | The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis |
| title_short | The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis |
| title_sort | ixodes ricinus complex acari ixodidae in the southern cone of america ixodes pararicinus ixodes aragaoi and ixodes sp cf i affinis |
| topic | Ixodidae Ixodes ricinus Identificación América del Sur Marcadores Genéticos Filogenia Identification South America Genetic Markers Phylogeny Ixodes pararicinus Ixodes aragaoi Ixodes sp. cf. I. affinis Marcadores Moleculares |
| url | https://link.springer.com/article/10.1007%2Fs00436-019-06470-z http://hdl.handle.net/20.500.12123/6457 https://doi.org/10.1007/s00436-019-06470-z |
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