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Citation for Study 14894

Citation title: "Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation".

Study name: "Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation".

This study is part of submission 14894 (Status: Published).

Citation

Beati L., Nava S., Burkman E.J., Barros-battesti D., Labruna M.B., Guglielmone A.A., Caceres A.G., Guzman-cornejo C., Leon R., Durden L., & Faccini J.L. 2013. Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation. BMC Evolutionary Biology, .

Authors

• Beati L. (submitter) 9124785564
• Nava S.
• Burkman E.J.
• Barros-battesti D.
• Labruna M.B.
• Guglielmone A.A.
• Caceres A.G.
• Guzman-cornejo C.
• Leon R.
• Durden L.
• Faccini J.L.

Abstract

Background: Amblyomma cajennense F.is one of the best known and studied ticks in the New World because of its very wide distribution, its economical importance as pest of domestic ungulates, and its association with a variety of animal and human pathogens. Recent observations, however, have challenged the taxonomic status of this tick and indicated that intraspecific cryptic speciation might be occurring. In the present study, we investigate the evolutionary and demographic history of this tick and examine its genetic structure based on the analyses of three mitochondrial (12SrDNA, d-loop, and COII) and one nuclear (ITS2) genes. Because A. cajennense is characterized by a typical trans-Amazonian distribution, lineage divergence dating is also performed to establish whether genetic diversity can be linked to dated vicariant events which shaped the topology of the Neotropics. Results: Total evidence analyses of the concatenated mtDNA and nuclear+mtDNA datasets resulted in well-resolved and fully congruent reconstructions of the relationships within A. cajennense. The phylogenetic analyses consistently found A. cajennense to be monophyletic and to be separated into six genetic units defined by mutually exclusive haplotype compositions and habitat associations. Also, genetic divergence values showed that these lineages are as distinct from each other as recognized separate species of the same genus. The six clades are deeply split and node dating indicates that they started diverging in the middle-late Miocene. Conclusions: Behavioraldifferencesandtheresultsoflaboratorycross-breedingexperimentshadalreadyindicated that A. cajennense might be a complex of distinct taxonomic units. The combined and congruent mitochondrial and nuclear genetic evidence from this study reveals that A. cajennense is an assembly of six distinct species which have evolved separately from each other since at least 13.2 million years ago (Mya) in the earliest and 3.3 Mya in the latest lineages. The temporal and spatial diversification modes of the six lineages overlap the phylogeographical history of other organisms with similar extant trans-Amazonian distributions and are consistent with the present prevailing hypothesis that Neotropical diversity often finds its origins in the Miocene, after the Andean uplift changed the topology and consequently the climate and ecology of the Neotropics.

Keywords

Amblyomma cajennense, phylogeography, speciation

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S14894
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref22529,
  	 author = {Lorenza  Beati and Santiago   Nava and Erica J. Burkman and Darci  Barros-Battesti and Marcelo B. Labruna and Alberto A. Guglielmone and Abraham G. Caceres and Carmen  Guzman-Cornejo and Renato  Leon and Lance A.  Durden and Joao L.H. Faccini},
  	 title = {Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation},
  	 year = {2013},
  	 keywords = {Amblyomma cajennense, phylogeography, speciation},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {BMC Evolutionary Biology},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Background: Amblyomma cajennense F.is one of the best known and studied ticks in the New World because of its 	very wide distribution, its economical importance as pest of domestic ungulates, and its association with a variety of	animal and human pathogens. Recent observations, however, have challenged the taxonomic status of this tick and	indicated that intraspecific cryptic speciation might be occurring. In the present study, we investigate the evolutionary and demographic history of this tick and examine its genetic structure based on the analyses of three mitochondrial (12SrDNA, d-loop, and COII) and one nuclear (ITS2) genes. Because A. cajennense is characterized by a typical trans-Amazonian distribution, lineage divergence dating is also performed to establish whether genetic diversity can be linked to dated vicariant events which shaped the topology of the Neotropics.
  Results: Total evidence analyses of the concatenated mtDNA and nuclear+mtDNA datasets resulted in well-resolved and fully congruent reconstructions of the relationships within A. cajennense. The phylogenetic analyses consistently found A. cajennense to be monophyletic and to be separated into six genetic units defined by mutually exclusive haplotype compositions and habitat associations. Also, genetic divergence values showed that these lineages are as distinct from each other as recognized separate species of the same genus. The six clades are deeply split and node dating indicates that they started diverging in the middle-late Miocene.
  Conclusions: Behavioraldifferencesandtheresultsoflaboratorycross-breedingexperimentshadalreadyindicated that A. cajennense might be a complex of distinct taxonomic units. The combined and congruent mitochondrial and	nuclear genetic evidence from this study reveals that A. cajennense is an assembly of six distinct species which have evolved separately from each other since at least 13.2 million years ago (Mya) in the earliest and 3.3 Mya in the latest lineages. The temporal and spatial diversification modes of the six lineages overlap the phylogeographical history of other organisms with similar extant trans-Amazonian distributions and are consistent with the present prevailing
  hypothesis that Neotropical diversity often finds its origins in the Miocene, after the Andean uplift changed the topology and consequently the climate and ecology of the Neotropics.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 22529
  AU  - Beati,Lorenza 
  AU  - Nava,Santiago  
  AU  - Burkman,Erica J.
  AU  - Barros-Battesti,Darci 
  AU  - Labruna,Marcelo B.
  AU  - Guglielmone,Alberto A.
  AU  - Caceres,Abraham G.
  AU  - Guzman-Cornejo,Carmen 
  AU  - Leon,Renato 
  AU  - Durden,Lance A. 
  AU  - Faccini,Joao L.H.
  T1  - Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation
  PY  - 2013
  KW  - Amblyomma cajennense
  KW  - phylogeography
  KW  - speciation
  UR  - http://dx.doi.org/
  N2  - Background: Amblyomma cajennense F.is one of the best known and studied ticks in the New World because of its 	very wide distribution, its economical importance as pest of domestic ungulates, and its association with a variety of	animal and human pathogens. Recent observations, however, have challenged the taxonomic status of this tick and	indicated that intraspecific cryptic speciation might be occurring. In the present study, we investigate the evolutionary and demographic history of this tick and examine its genetic structure based on the analyses of three mitochondrial (12SrDNA, d-loop, and COII) and one nuclear (ITS2) genes. Because A. cajennense is characterized by a typical trans-Amazonian distribution, lineage divergence dating is also performed to establish whether genetic diversity can be linked to dated vicariant events which shaped the topology of the Neotropics.
  Results: Total evidence analyses of the concatenated mtDNA and nuclear+mtDNA datasets resulted in well-resolved and fully congruent reconstructions of the relationships within A. cajennense. The phylogenetic analyses consistently found A. cajennense to be monophyletic and to be separated into six genetic units defined by mutually exclusive haplotype compositions and habitat associations. Also, genetic divergence values showed that these lineages are as distinct from each other as recognized separate species of the same genus. The six clades are deeply split and node dating indicates that they started diverging in the middle-late Miocene.
  Conclusions: Behavioraldifferencesandtheresultsoflaboratorycross-breedingexperimentshadalreadyindicated that A. cajennense might be a complex of distinct taxonomic units. The combined and congruent mitochondrial and	nuclear genetic evidence from this study reveals that A. cajennense is an assembly of six distinct species which have evolved separately from each other since at least 13.2 million years ago (Mya) in the earliest and 3.3 Mya in the latest lineages. The temporal and spatial diversification modes of the six lineages overlap the phylogeographical history of other organisms with similar extant trans-Amazonian distributions and are consistent with the present prevailing
  hypothesis that Neotropical diversity often finds its origins in the Miocene, after the Andean uplift changed the topology and consequently the climate and ecology of the Neotropics.
  L3  - 
  JF  - BMC Evolutionary Biology
  VL  - 
  IS  - 
  ER  -