Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia
The rise of molecular techniques in the study of evolutionary histories has resulted in a gradual abandonment of morphological characters as the only sources of phylogenetic inference. However, morphological characters may be valuable for phylogenetic reconstruction, especially for tracking adaptive changes across phylogeographic groups defined by genetic markers. We examined the discriminative power of morphological characters between four mitochondrial clades covering almost the entire distribution area of the smooth snake Coronella girondica in the Western Mediterranean. We detected three characters showing sexual dimorphism (relative tail length, number of ventral and of subcaudal scale counts) and, more interestingly, two characters (number of subcaudal and of dorsal rows) displaying interclade differences. Almost all C. girondica examined had 21 dorsal rows except those from a narrow coastal belt in the south-eastern Iberian Peninsula, which had 19 dorsal rows. The distribution of these specimens matches a mitochondrial clade that originated approximately 1.4-2.0 million years ago. Both of these morphological characters support a Betic lineage with a rather well-defined contact zone with the other Iberian lineage, which has been maintained even without the existence of current geographic barriers. The long-term survival of the Betic lineage throughout the Pleistocene climatic oscillations suggests a systematic revision within C. girondica. © 2012 Elsevier GmbH.
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Elsevier
2012-12
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Subjects: | Interclade differences, Mitochondrial clade, Pholidosis, Phylogenetic reconstruction, Betic ranges, |
Online Access: | http://hdl.handle.net/10261/113874 http://dx.doi.org/10.13039/501100001871 |
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dig-ibe-es-10261-1138742018-09-27T07:29:47Z Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia Santos, Xavier Rato, Catarina Carranza, Salvador Carretero, Miguel A. González de la Vega, Juan Pablo Pleguezuelos, Juan M. Fundação para a Ciência e a Tecnologia (Portugal) Ministerio de Educación y Ciencia (España) Interclade differences Mitochondrial clade Pholidosis Phylogenetic reconstruction Betic ranges The rise of molecular techniques in the study of evolutionary histories has resulted in a gradual abandonment of morphological characters as the only sources of phylogenetic inference. However, morphological characters may be valuable for phylogenetic reconstruction, especially for tracking adaptive changes across phylogeographic groups defined by genetic markers. We examined the discriminative power of morphological characters between four mitochondrial clades covering almost the entire distribution area of the smooth snake Coronella girondica in the Western Mediterranean. We detected three characters showing sexual dimorphism (relative tail length, number of ventral and of subcaudal scale counts) and, more interestingly, two characters (number of subcaudal and of dorsal rows) displaying interclade differences. Almost all C. girondica examined had 21 dorsal rows except those from a narrow coastal belt in the south-eastern Iberian Peninsula, which had 19 dorsal rows. The distribution of these specimens matches a mitochondrial clade that originated approximately 1.4-2.0 million years ago. Both of these morphological characters support a Betic lineage with a rather well-defined contact zone with the other Iberian lineage, which has been maintained even without the existence of current geographic barriers. The long-term survival of the Betic lineage throughout the Pleistocene climatic oscillations suggests a systematic revision within C. girondica. © 2012 Elsevier GmbH. Xavier Santos was supported by a post-doctoral grant (SFRH/BPD/73176/2010) and C. Rato by the Ph.D. grant SFRH/BD/36387/2007, both from the Fundação para a Ciência e a Tecnologia (FCT, Portugal). Funding was provided by a grant from the Ministerio de Educación y Ciencia, Spain (CGL2009-11663/BOS to X.S., S.C. and J.M.P.) and by the projects PTDC/BIA-BDE/67678/2006 and PTDC/BIA-BEC/101256/2008 funded by FCT, Portugal (to M.A.C.). Peer Reviewed 2015-04-21T07:20:44Z 2015-04-21T07:20:44Z 2012-12 2015-04-21T07:20:44Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.zool.2012.05.004 issn: 0944-2006 Zoology 115(6): 398-404 (2012) http://hdl.handle.net/10261/113874 10.1016/j.zool.2012.05.004 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.1016/j.zool.2012.05.004 Sí none Elsevier |
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Interclade differences Mitochondrial clade Pholidosis Phylogenetic reconstruction Betic ranges Interclade differences Mitochondrial clade Pholidosis Phylogenetic reconstruction Betic ranges |
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Interclade differences Mitochondrial clade Pholidosis Phylogenetic reconstruction Betic ranges Interclade differences Mitochondrial clade Pholidosis Phylogenetic reconstruction Betic ranges Santos, Xavier Rato, Catarina Carranza, Salvador Carretero, Miguel A. González de la Vega, Juan Pablo Pleguezuelos, Juan M. Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia |
description |
The rise of molecular techniques in the study of evolutionary histories has resulted in a gradual abandonment of morphological characters as the only sources of phylogenetic inference. However, morphological characters may be valuable for phylogenetic reconstruction, especially for tracking adaptive changes across phylogeographic groups defined by genetic markers. We examined the discriminative power of morphological characters between four mitochondrial clades covering almost the entire distribution area of the smooth snake Coronella girondica in the Western Mediterranean. We detected three characters showing sexual dimorphism (relative tail length, number of ventral and of subcaudal scale counts) and, more interestingly, two characters (number of subcaudal and of dorsal rows) displaying interclade differences. Almost all C. girondica examined had 21 dorsal rows except those from a narrow coastal belt in the south-eastern Iberian Peninsula, which had 19 dorsal rows. The distribution of these specimens matches a mitochondrial clade that originated approximately 1.4-2.0 million years ago. Both of these morphological characters support a Betic lineage with a rather well-defined contact zone with the other Iberian lineage, which has been maintained even without the existence of current geographic barriers. The long-term survival of the Betic lineage throughout the Pleistocene climatic oscillations suggests a systematic revision within C. girondica. © 2012 Elsevier GmbH. |
author2 |
Fundação para a Ciência e a Tecnologia (Portugal) |
author_facet |
Fundação para a Ciência e a Tecnologia (Portugal) Santos, Xavier Rato, Catarina Carranza, Salvador Carretero, Miguel A. González de la Vega, Juan Pablo Pleguezuelos, Juan M. |
format |
artículo |
topic_facet |
Interclade differences Mitochondrial clade Pholidosis Phylogenetic reconstruction Betic ranges |
author |
Santos, Xavier Rato, Catarina Carranza, Salvador Carretero, Miguel A. González de la Vega, Juan Pablo Pleguezuelos, Juan M. |
author_sort |
Santos, Xavier |
title |
Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia |
title_short |
Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia |
title_full |
Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia |
title_fullStr |
Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia |
title_full_unstemmed |
Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from Iberia |
title_sort |
morphology matches mtdna lineages in the southern smooth snake (coronella girondica) from iberia |
publisher |
Elsevier |
publishDate |
2012-12 |
url |
http://hdl.handle.net/10261/113874 http://dx.doi.org/10.13039/501100001871 |
work_keys_str_mv |
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1777668600706891776 |