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Citation for Study 10513

Citation title: "Phylogeographic analysis of the plain-bellied watersnake (Nerodia erythrogaster) reveals low genetic and ecological differentiation and no support for subspecies".

Study name: "Phylogeographic analysis of the plain-bellied watersnake (Nerodia erythrogaster) reveals low genetic and ecological differentiation and no support for subspecies".

This study is part of submission 10503 (Status: Published).

Citation

Makowsky R.A., Marshall J.C., Mcvay J.D., Chippindale P., & Rissler L.J. 2010. Phylogeographic analysis of the plain-bellied watersnake (Nerodia erythrogaster) reveals low genetic and ecological differentiation and no support for subspecies. Molecular Phylogenetics and Evolution, 55(3): 985-995.

Authors

• Makowsky R.A. 205-975-9122
• Marshall J.C.
• Mcvay J.D. (submitter) 225-241-3677
• Chippindale P.
• Rissler L.J.

Abstract

Species that exhibit geographically defined phenotypic variation have traditionally been divided into subspecies. Subspecies based on morphological features may not comprise monophyletic groups due to a possible combination of selection, gene flow, or convergent evolution. In many taxonomic groups the number of species once designated as widespread is dwindling rapidly, and many workers reject the concept of subspecies altogether. We tested whether currently recognized subspecies in the plain-bellied watersnake Nerodia erythrogaster are concordant with relationships based on mitochondrial markers. The range of this species spans multiple potential biogeographic barriers (Mississippi River and Apalachicola Rivers) that correspond with lineage breaks in many species, including other snakes. We sequenced three genes (NADH-II, Cyt-b, Cox-I) from 156 geo-referenced specimens and developed ecological niche models using Maxent and spatially-explicit climate data to examine historical and ecological factors affecting variation in N. erythrogaster across its range. Overall, we found little support for the recognized subspecies and conclude that although some genetic and niche differentiation has occurred, most populations assigned to N. erythrogaster appear to represent a single, widespread species. However, additional sampling and application of nuclear markers are necessary to clarify the status of the easternmost populations.

Keywords

Nerodia erythrogaster, Natricinae, Subspecies, Thamnophiinae, Watersnake, Phylogeography, Ecological niche modeling

External links

• DOI: 10.1016/j.ympev.2010.03.012
• PMID: 20302955

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S10513
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref18959,
  	 author = {Robert Aaron Makowsky and John C. Marshall and John David McVay and Paul T.  Chippindale and Leslie J. Rissler},
  	 title = {Phylogeographic analysis of the plain-bellied watersnake (Nerodia erythrogaster) reveals low genetic and ecological differentiation and no support for subspecies},
  	 year = {2010},
  	 keywords = {Nerodia erythrogaster, Natricinae, Subspecies, Thamnophiinae, Watersnake, Phylogeography, Ecological niche modeling},
  	 doi = {10.1016/j.ympev.2010.03.012},
  	 url = {http://},
  	 pmid = {20302955},
  	 journal = {Molecular Phylogenetics and Evolution},
  	 volume = {55},
  	 number = {3},
  	 pages = {985--995},
  	 abstract = {Species that exhibit geographically defined phenotypic variation have traditionally been divided into subspecies.  Subspecies based on morphological features may not comprise monophyletic groups due to a possible combination of selection, gene flow, or convergent evolution.  In many taxonomic groups the number of species once designated as widespread is dwindling rapidly, and many workers reject the concept of subspecies altogether.   We tested whether currently recognized subspecies in the plain-bellied watersnake Nerodia erythrogaster are concordant with relationships based on mitochondrial markers.  The range of this species spans multiple potential biogeographic barriers (Mississippi River and Apalachicola Rivers) that correspond with lineage breaks in many species, including other snakes.  We sequenced three genes (NADH-II, Cyt-b, Cox-I) from 156 geo-referenced specimens and developed ecological niche models using Maxent and spatially-explicit climate data to examine historical and ecological factors affecting variation in N. erythrogaster across its range.  Overall, we found little support for the recognized subspecies and conclude that although some genetic and niche differentiation has occurred, most populations assigned to N. erythrogaster appear to represent a single, widespread species.  However, additional sampling and application of nuclear markers are necessary to clarify the status of the easternmost populations.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 18959
  AU  - Makowsky,Robert Aaron
  AU  - Marshall,John C.
  AU  - McVay,John David
  AU  - Chippindale,Paul T. 
  AU  - Rissler,Leslie J.
  T1  - Phylogeographic analysis of the plain-bellied watersnake (Nerodia erythrogaster) reveals low genetic and ecological differentiation and no support for subspecies
  PY  - 2010
  KW  - Nerodia erythrogaster
  KW  - Natricinae
  KW  - Subspecies
  KW  - Thamnophiinae
  KW  - Watersnake
  KW  - Phylogeography
  KW  - Ecological niche modeling
  UR  - http://dx.doi.org/10.1016/j.ympev.2010.03.012
  N2  - Species that exhibit geographically defined phenotypic variation have traditionally been divided into subspecies.  Subspecies based on morphological features may not comprise monophyletic groups due to a possible combination of selection, gene flow, or convergent evolution.  In many taxonomic groups the number of species once designated as widespread is dwindling rapidly, and many workers reject the concept of subspecies altogether.   We tested whether currently recognized subspecies in the plain-bellied watersnake Nerodia erythrogaster are concordant with relationships based on mitochondrial markers.  The range of this species spans multiple potential biogeographic barriers (Mississippi River and Apalachicola Rivers) that correspond with lineage breaks in many species, including other snakes.  We sequenced three genes (NADH-II, Cyt-b, Cox-I) from 156 geo-referenced specimens and developed ecological niche models using Maxent and spatially-explicit climate data to examine historical and ecological factors affecting variation in N. erythrogaster across its range.  Overall, we found little support for the recognized subspecies and conclude that although some genetic and niche differentiation has occurred, most populations assigned to N. erythrogaster appear to represent a single, widespread species.  However, additional sampling and application of nuclear markers are necessary to clarify the status of the easternmost populations.
  L3  - 10.1016/j.ympev.2010.03.012
  JF  - Molecular Phylogenetics and Evolution
  VL  - 55
  IS  - 3
  SP  - 985
  EP  - 995
  ER  -