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Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain)
BACKGROUND: In the Canary Islands there are no previous data about tapeworms (Cestoda) of rodents. In order to identify the hymenolepidid species present in these hosts, a survey of 1,017 murine (349 Rattus rattus, 13 Rattus norvegicus and 655 Mus musculus domesticus) was carried out in the whole Ar...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3215934/ https://www.ncbi.nlm.nih.gov/pubmed/21943096 http://dx.doi.org/10.1186/1756-3305-4-185 |
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author | Foronda, Pilar López-González, Mercedes Hernández, Mariano Haukisalmi, Voitto Feliu, Carlos |
author_facet | Foronda, Pilar López-González, Mercedes Hernández, Mariano Haukisalmi, Voitto Feliu, Carlos |
author_sort | Foronda, Pilar |
collection | PubMed |
description | BACKGROUND: In the Canary Islands there are no previous data about tapeworms (Cestoda) of rodents. In order to identify the hymenolepidid species present in these hosts, a survey of 1,017 murine (349 Rattus rattus, 13 Rattus norvegicus and 655 Mus musculus domesticus) was carried out in the whole Archipelago. Molecular studies based on nuclear ITS1 and mitochondrial COI loci were performed to confirm the identifications and to analyse the levels of genetic variation and differentiation. RESULTS: Three species of hymenolepidids were identified: Hymenolepis diminuta, Rodentolepis microstoma and Rodentolepis fraterna. Hymenolepis diminuta (in rats) and R. microstoma (in mice) showed a widespread distribution in the Archipelago, and R. fraterna was the least spread species, appearing only on five of the islands. The hymenolepidids found on Fuerteventura, Lanzarote and La Graciosa were restricted to one area. The COI network of H. diminuta showed that the haplotypes from Lanzarote and Fuerteventura are the most distant with respect to the other islands, but clearly related among them. CONCLUSIONS: Founder effects and biotic and abiotic factors could have played important role in the presence/absence of the hymenolepidid species in determined locations. The haplotypes from the eastern islands (Fuerteventura and Lanzarote) seem to have shared an ancestral haplotype very distant from the most frequent one that was found in the rest of the islands. Two colonization events or a single event with subsequent isolation and reduced gene flow between western-central and eastern islands, have taken place in the Archipelago. The three tapeworms detected are zoonotic species, and their presence among rodents from this Archipelago suggests a potential health risk to human via environmental contamination in high risk areas. However, the relatively low prevalence of infestations detected and the focal distribution of some of these species on certain islands reduce the general transmission risk to human. |
format | Online Article Text |
id | pubmed-3215934 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-32159342011-11-16 Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) Foronda, Pilar López-González, Mercedes Hernández, Mariano Haukisalmi, Voitto Feliu, Carlos Parasit Vectors Research BACKGROUND: In the Canary Islands there are no previous data about tapeworms (Cestoda) of rodents. In order to identify the hymenolepidid species present in these hosts, a survey of 1,017 murine (349 Rattus rattus, 13 Rattus norvegicus and 655 Mus musculus domesticus) was carried out in the whole Archipelago. Molecular studies based on nuclear ITS1 and mitochondrial COI loci were performed to confirm the identifications and to analyse the levels of genetic variation and differentiation. RESULTS: Three species of hymenolepidids were identified: Hymenolepis diminuta, Rodentolepis microstoma and Rodentolepis fraterna. Hymenolepis diminuta (in rats) and R. microstoma (in mice) showed a widespread distribution in the Archipelago, and R. fraterna was the least spread species, appearing only on five of the islands. The hymenolepidids found on Fuerteventura, Lanzarote and La Graciosa were restricted to one area. The COI network of H. diminuta showed that the haplotypes from Lanzarote and Fuerteventura are the most distant with respect to the other islands, but clearly related among them. CONCLUSIONS: Founder effects and biotic and abiotic factors could have played important role in the presence/absence of the hymenolepidid species in determined locations. The haplotypes from the eastern islands (Fuerteventura and Lanzarote) seem to have shared an ancestral haplotype very distant from the most frequent one that was found in the rest of the islands. Two colonization events or a single event with subsequent isolation and reduced gene flow between western-central and eastern islands, have taken place in the Archipelago. The three tapeworms detected are zoonotic species, and their presence among rodents from this Archipelago suggests a potential health risk to human via environmental contamination in high risk areas. However, the relatively low prevalence of infestations detected and the focal distribution of some of these species on certain islands reduce the general transmission risk to human. BioMed Central 2011-09-26 /pmc/articles/PMC3215934/ /pubmed/21943096 http://dx.doi.org/10.1186/1756-3305-4-185 Text en Copyright ©2011 Foronda et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Foronda, Pilar López-González, Mercedes Hernández, Mariano Haukisalmi, Voitto Feliu, Carlos Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) |
title | Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) |
title_full | Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) |
title_fullStr | Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) |
title_full_unstemmed | Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) |
title_short | Distribution and genetic variation of hymenolepidid cestodes in murid rodents on the Canary Islands (Spain) |
title_sort | distribution and genetic variation of hymenolepidid cestodes in murid rodents on the canary islands (spain) |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3215934/ https://www.ncbi.nlm.nih.gov/pubmed/21943096 http://dx.doi.org/10.1186/1756-3305-4-185 |
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