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Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling

Three species belonging to the genus Dermacentor (Acari: Ixodidae), D. marginatus, D. nuttalli and D. silvarum are well known as vectors for a great variety of infection pathogens. All three of them are host ticks, which are very similar in morphology characteristics, life cycle, seasonal variation...

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Autores principales: Wang, Fang, Wang, Duo, Guo, Ge, Hu, Yonghong, Wei, Jiufeng, Liu, Jingze
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6512763/
https://www.ncbi.nlm.nih.gov/pubmed/31123639
http://dx.doi.org/10.7717/peerj.6911
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author Wang, Fang
Wang, Duo
Guo, Ge
Hu, Yonghong
Wei, Jiufeng
Liu, Jingze
author_facet Wang, Fang
Wang, Duo
Guo, Ge
Hu, Yonghong
Wei, Jiufeng
Liu, Jingze
author_sort Wang, Fang
collection PubMed
description Three species belonging to the genus Dermacentor (Acari: Ixodidae), D. marginatus, D. nuttalli and D. silvarum are well known as vectors for a great variety of infection pathogens. All three of them are host ticks, which are very similar in morphology characteristics, life cycle, seasonal variation and ecological conditions, making it difficult to distinguish the three species. In the present study, these three species were delimitated based on molecular data and ecological niche. The molecular analysis showed that the three species can be distinguished by COI and ITS2 sequences. We created future potential distribution maps for the three species under climate changes with MaxEnt, which highlighted the different levels of the suitable habitats for each tick species. In addition, niche comparisons among the three species in Dermacentor were conducted, and the analysis suggested that niche overlap was relatively high with D. nuttalli and D. silvarum compared to the other species pairs, which was consistent with the molecular data. Niche equivalency and similarity test confirmed that these Dermacentor species were closely related but distinct species. In conclusion, delimitation of these three species within Dermacentor was supported by molecular phylogeny and quantitative ecological space. This study will provide deep insights into the biology, ecology, and diversification processes within Dermacentor species, and for the development of effective control for ticks.
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spelling pubmed-65127632019-05-23 Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling Wang, Fang Wang, Duo Guo, Ge Hu, Yonghong Wei, Jiufeng Liu, Jingze PeerJ Taxonomy Three species belonging to the genus Dermacentor (Acari: Ixodidae), D. marginatus, D. nuttalli and D. silvarum are well known as vectors for a great variety of infection pathogens. All three of them are host ticks, which are very similar in morphology characteristics, life cycle, seasonal variation and ecological conditions, making it difficult to distinguish the three species. In the present study, these three species were delimitated based on molecular data and ecological niche. The molecular analysis showed that the three species can be distinguished by COI and ITS2 sequences. We created future potential distribution maps for the three species under climate changes with MaxEnt, which highlighted the different levels of the suitable habitats for each tick species. In addition, niche comparisons among the three species in Dermacentor were conducted, and the analysis suggested that niche overlap was relatively high with D. nuttalli and D. silvarum compared to the other species pairs, which was consistent with the molecular data. Niche equivalency and similarity test confirmed that these Dermacentor species were closely related but distinct species. In conclusion, delimitation of these three species within Dermacentor was supported by molecular phylogeny and quantitative ecological space. This study will provide deep insights into the biology, ecology, and diversification processes within Dermacentor species, and for the development of effective control for ticks. PeerJ Inc. 2019-05-10 /pmc/articles/PMC6512763/ /pubmed/31123639 http://dx.doi.org/10.7717/peerj.6911 Text en ©2019 Wang 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 (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Taxonomy
Wang, Fang
Wang, Duo
Guo, Ge
Hu, Yonghong
Wei, Jiufeng
Liu, Jingze
Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling
title Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling
title_full Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling
title_fullStr Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling
title_full_unstemmed Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling
title_short Species delimitation of the Dermacentor ticks based on phylogenetic clustering and niche modeling
title_sort species delimitation of the dermacentor ticks based on phylogenetic clustering and niche modeling
topic Taxonomy
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6512763/
https://www.ncbi.nlm.nih.gov/pubmed/31123639
http://dx.doi.org/10.7717/peerj.6911
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