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The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species
A comparative phylogeographic study on two economically important African tick species, Amblyomma hebraeum and Hyalomma rufipes was performed to test the influence of host specificity and host movement on dispersion. Pairwise AMOVA analyses of 277 mtDNA COI sequences supported significant population...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3793905/ https://www.ncbi.nlm.nih.gov/pubmed/24130813 http://dx.doi.org/10.1371/journal.pone.0076930 |
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author | Cangi, Nídia Horak, Ivan G. Apanaskevich, Dmitry A. Matthee, Sonja das Neves, Luís C. B. G. Estrada-Peña, Agustín Matthee, Conrad A. |
author_facet | Cangi, Nídia Horak, Ivan G. Apanaskevich, Dmitry A. Matthee, Sonja das Neves, Luís C. B. G. Estrada-Peña, Agustín Matthee, Conrad A. |
author_sort | Cangi, Nídia |
collection | PubMed |
description | A comparative phylogeographic study on two economically important African tick species, Amblyomma hebraeum and Hyalomma rufipes was performed to test the influence of host specificity and host movement on dispersion. Pairwise AMOVA analyses of 277 mtDNA COI sequences supported significant population differentiation among the majority of sampling sites. The geographic mitochondrial structure was not supported by nuclear ITS-2 sequencing, probably attributed to a recent divergence. The three-host generalist, A. hebraeum, showed less mtDNA geographic structure, and a lower level of genetic diversity, while the more host-specific H. rufipes displayed higher levels of population differentiation and two distinct mtDNA assemblages (one predominantly confined to South Africa/Namibia and the other to Mozambique and East Africa). A zone of overlap is present in southern Mozambique. A mechanistic climate model suggests that climate alone cannot be responsible for the disruption in female gene flow. Our findings furthermore suggest that female gene dispersal of ticks is more dependent on the presence of juvenile hosts in the environment than on the ability of adult hosts to disperse across the landscape. Documented interspecific competition between the juvenile stages of H. rufipes and H. truncatum is implicated as a contributing factor towards disrupting gene flow between the two southern African H. rufipes genetic assemblages. |
format | Online Article Text |
id | pubmed-3793905 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-37939052013-10-15 The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species Cangi, Nídia Horak, Ivan G. Apanaskevich, Dmitry A. Matthee, Sonja das Neves, Luís C. B. G. Estrada-Peña, Agustín Matthee, Conrad A. PLoS One Research Article A comparative phylogeographic study on two economically important African tick species, Amblyomma hebraeum and Hyalomma rufipes was performed to test the influence of host specificity and host movement on dispersion. Pairwise AMOVA analyses of 277 mtDNA COI sequences supported significant population differentiation among the majority of sampling sites. The geographic mitochondrial structure was not supported by nuclear ITS-2 sequencing, probably attributed to a recent divergence. The three-host generalist, A. hebraeum, showed less mtDNA geographic structure, and a lower level of genetic diversity, while the more host-specific H. rufipes displayed higher levels of population differentiation and two distinct mtDNA assemblages (one predominantly confined to South Africa/Namibia and the other to Mozambique and East Africa). A zone of overlap is present in southern Mozambique. A mechanistic climate model suggests that climate alone cannot be responsible for the disruption in female gene flow. Our findings furthermore suggest that female gene dispersal of ticks is more dependent on the presence of juvenile hosts in the environment than on the ability of adult hosts to disperse across the landscape. Documented interspecific competition between the juvenile stages of H. rufipes and H. truncatum is implicated as a contributing factor towards disrupting gene flow between the two southern African H. rufipes genetic assemblages. Public Library of Science 2013-10-09 /pmc/articles/PMC3793905/ /pubmed/24130813 http://dx.doi.org/10.1371/journal.pone.0076930 Text en © 2013 Cangi et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Cangi, Nídia Horak, Ivan G. Apanaskevich, Dmitry A. Matthee, Sonja das Neves, Luís C. B. G. Estrada-Peña, Agustín Matthee, Conrad A. The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species |
title | The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species |
title_full | The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species |
title_fullStr | The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species |
title_full_unstemmed | The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species |
title_short | The Influence of Interspecific Competition and Host Preference on the Phylogeography of Two African Ixodid Tick Species |
title_sort | influence of interspecific competition and host preference on the phylogeography of two african ixodid tick species |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3793905/ https://www.ncbi.nlm.nih.gov/pubmed/24130813 http://dx.doi.org/10.1371/journal.pone.0076930 |
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