Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae)
Vences, Miguel et al.
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Elsevier
2014-04
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Subjects: | Amphibia, Caudata, Species tree, Steroidal toxins, Mediterranean biogeography, Salamandridae, |
Online Access: | http://hdl.handle.net/10261/115325 http://dx.doi.org/10.13039/100005156 |
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dig-ibe-es-10261-1153252018-09-27T07:29:47Z Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) Vences, Miguel Carranza, Salvador Steinfartz, S. Alexander von Humboldt Foundation Amphibia Caudata Species tree Steroidal toxins Mediterranean biogeography Salamandridae Vences, Miguel et al. The genus Salamandra represents a clade of six species of Palearctic salamanders of either contrasted black-yellow, or uniformly black coloration, known to contain steroidal alkaloid toxins in high concentrations in their skin secretions. This study reconstructs the phylogeny of the genus Salamandra based on DNA sequences of segments of 10 mitochondrial and 13 nuclear genes from 31 individual samples representing all Salamandra species and most of the commonly recognized subspecies. The concatenated analysis of the complete dataset produced a fully resolved tree with most nodes strongly supported, suggesting that a clade composed of the Alpine salamander (S. atra) and the Corsican fire salamander (S. corsica) is the sister taxon to a clade containing the remaining species, among which S. algira and S. salamandra are sister species. Separate analyses of mitochondrial and nuclear data partitions disagreed regarding basal nodes and in the position of the root but concordantly recovered the S. atra/. S. corsica as well as the S. salamandra/. S. algira relationship. A species-tree analysis suggested almost simultaneous temporal splits between these pairs of species, which we hypothesize was caused by vicariance events after the Messinian salinity crisis (from late Miocene to early Pliocene). A survey of toxins with combined gas chromatography/mass spectroscopy confirmed the presence of samandarine and/or samandarone steroidal alkaloids in all species of Salamandra as well as in representatives of their sister group, Lyciasalamandra. Samandarone was also detected in lower concentrations in other salamandrids including Calotriton, Euproctus, Lissotriton, and Triturus, suggesting that the presence and possible biosynthesis of this alkaloid is plesiomorphic within the Salamandridae. © 2014 Elsevier Inc. AR was supported by the Alexander von Humboldt foundation. Peer Reviewed 2015-05-18T11:25:36Z 2015-05-18T11:25:36Z 2014-04 2015-05-18T11:25:36Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.ympev.2013.12.009 issn: 1055-7903 Molecular Phylogenetics and Evolution 73: 208-216 (2014) http://hdl.handle.net/10261/115325 10.1016/j.ympev.2013.12.009 http://dx.doi.org/10.13039/100005156 http://dx.doi.org/10.1016/j.ympev.2013.12.009 Sí none Elsevier |
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Amphibia Caudata Species tree Steroidal toxins Mediterranean biogeography Salamandridae Amphibia Caudata Species tree Steroidal toxins Mediterranean biogeography Salamandridae |
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Amphibia Caudata Species tree Steroidal toxins Mediterranean biogeography Salamandridae Amphibia Caudata Species tree Steroidal toxins Mediterranean biogeography Salamandridae Vences, Miguel Carranza, Salvador Steinfartz, S. Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) |
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Vences, Miguel et al. |
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Alexander von Humboldt Foundation |
author_facet |
Alexander von Humboldt Foundation Vences, Miguel Carranza, Salvador Steinfartz, S. |
format |
artículo |
topic_facet |
Amphibia Caudata Species tree Steroidal toxins Mediterranean biogeography Salamandridae |
author |
Vences, Miguel Carranza, Salvador Steinfartz, S. |
author_sort |
Vences, Miguel |
title |
Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) |
title_short |
Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) |
title_full |
Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) |
title_fullStr |
Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) |
title_full_unstemmed |
Nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus Salamandra (Salamandridae) |
title_sort |
nuclear and mitochondrial multilocus phylogeny and survey of alkaloid content in true salamanders of the genus salamandra (salamandridae) |
publisher |
Elsevier |
publishDate |
2014-04 |
url |
http://hdl.handle.net/10261/115325 http://dx.doi.org/10.13039/100005156 |
work_keys_str_mv |
AT vencesmiguel nuclearandmitochondrialmultilocusphylogenyandsurveyofalkaloidcontentintruesalamandersofthegenussalamandrasalamandridae AT carranzasalvador nuclearandmitochondrialmultilocusphylogenyandsurveyofalkaloidcontentintruesalamandersofthegenussalamandrasalamandridae AT steinfartzs nuclearandmitochondrialmultilocusphylogenyandsurveyofalkaloidcontentintruesalamandersofthegenussalamandrasalamandridae |
_version_ |
1777668605853302784 |