A molecular assessment of phylogenetic relationships and lineage accumulation rates within the family Salamandridae (Amphibia, Caudata)

is a journal article

Molecular Phylogenetics and Evolution 41: 368 (2006)
 D Weisrock   T Papenfuss   J Macey   S Litvinchuk   R Polymeni   I Ugurtas   E Zhao   H Jowkar   A Larson 

Tags

 Lineage accumulation   Mitochondrial DNA   Newt   Salamander   Salamandridae 

We examine phylogenetic relationships among salamanders of the family Salamandridae using approximately 2700 bases of new mtDNA sequence data (the tRNALeu, ND1, tRNAIle, tRNAGln, tRNAMet, ND2, tRNATrp, tRNAAla, tRNAAsn, tRNACys, tRNATyr, and COI genes and the origin for light-strand replication) collected from 96 individuals representing 61 of the 66 recognized salamandrid species and outgroups. Phylogenetic analyses using maximum parsimony and Bayesian analysis are performed on the new data alone and combined with previously reported sequences from other parts of the mitochondrial genome. The basal phylogenetic split is a polytomy of lineages ancestral to (1) the Italian newt Salamandrina terdigitata, (2) a strongly supported clade comprising the “true” salamanders (genera Chioglossa, Mertensiella, Lyciasalamandra, and Salamandra), and (3) a strongly supported clade comprising all newts except S. terdigitata. Strongly supported clades within the true salamanders include monophyly of each genus and grouping Chioglossa and Mertensiella as the sister taxon to a clade comprising Lyciasalamandra and Salamandra. Among newts, genera Echinotriton, Pleurodeles, and Tylototriton form a strongly supported clade whose sister taxon comprises the genera Calotriton, Cynops, Euproctus, Neurergus, Notophthalmus, Pachytriton, Paramesotriton, Taricha, and Triturus. Our results strongly support monophyly of all polytypic newt genera except Paramesotriton and Triturus, which appear paraphyletic, and Calotriton, for which only one of the two species is sampled. Other well-supported clades within newts include (1) Asian genera Cynops, Pachytriton, and Paramesotriton, (2) North American genera Notophthalmus and Taricha, (3) the Triturus vulgaris species group, and (4) the Triturus cristatus species group; some additional groupings appear strong in Bayesian but not parsimony analyses. Rates of lineage accumulation through time are evaluated using this nearly comprehensive sampling of salamandrid species-level lineages. Rate of lineage accumulation appears constant throughout salamandrid evolutionary history with no obvious fluctuations associated with origins of morphological or ecological novelties.

Cites 48

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Taxon/gene matrix

Table lens view of sequences, grouped by taxon and gene feature. Click on accession number to see details for sequence. Note that if more than one sequence exists for the same gene for the same taxon, only one will be displayed here.

Features

Sequence features (such as genes) in this study

 contains tRNA-Leu, NADH dehydrogenase subunit 1, tRNA-Ile, tRNA-Gln, tRNA-Met, NADH dehydrogenase subunit 2, tRNA-Trp, tRNA-Ala, tRNA-Asn, tRNA-Cys, tRNA-Tyr, and cytochrome oxidase subunit I   contains 12S ribosomal RNA, tRNA-Val, and 16S ribosomal RNA   Necturus alabamensis   Ambystoma tigrinum   Phaeognathus hubrichti   Dicamptodon tenebrosus   Chioglossa lusitanica   Cynops cyanurus   Cynops ensicauda   Cynops orientalis   Cynops orphicus   Echinotriton andersoni   Euproctus platycephalus   Mertensiella luschani   Mertensiella caucasica   Neurergus crocatus   Neurergus kaiseri   Neurergus microspilotus   Neurergus strauchii   Notophthalmus viridescens   Pachytriton labiatus   Paramesotriton caudopunctatus   Paramesotriton chinensis   Paramesotriton   Paramesotriton deloustali   Paramesotriton fuzhongensis   Paramesotriton guanxiensis   Paramesotriton hongkongensis   Paramesotriton laoensis   Paramesotriton sp.   Pleurodeles poireti   Pleurodeles waltl   Salamandra salamandra   Salamandrina terdigitata   Taricha granulosa   Taricha rivularis   Taricha torosa   Triturus cristatus   Triturus karelinii   Triturus marmoratus   Triturus vittatus   Triturus vulgaris   Tylototriton hainanensis   Tylototriton kweichowensis   Tylototriton shanjing   Tylototriton taliangensis   Tylototriton sp.   Tylototriton wenxianensis 

Taxa

Taxa sequenced in thius study

 Necturus alabamensis   Ambystoma tigrinum   Eurycea wilderae   Phaeognathus hubrichti   Dicamptodon tenebrosus   Calotriton asper   Chioglossa lusitanica   Cynops cyanurus   Cynops ensicauda   Cynops orientalis   Cynops orphicus   Cynops pyrrhogaster   Echinotriton andersoni   Echinotriton chinhaiensis   Euproctus montanus   Euproctus platycephalus   Lyciasalamandra antalyana   Lyciasalamandra atifi   Lyciasalamandra billae   Lyciasalamandra fazilae   Lyciasalamandra flavimembris   Lyciasalamandra helverseni   Lyciasalamandra luschani   Lyciasalamandra luschani basoglui   Lyciasalamandra luschani finikensis   Mertensiella caucasica   Neurergus crocatus   Neurergus kaiseri   Neurergus microspilotus   Neurergus strauchii barani   Neurergus strauchii strauchii   Notophthalmus meridionalis   Notophthalmus perstriatus   Notophthalmus viridescens   Pachytriton brevipes   Pachytriton labiatus   Paramesotriton caudopunctatus   Paramesotriton chinensis   Paramesotriton deloustali   Paramesotriton fuzhongensis   Paramesotriton guanxiensis   Paramesotriton hongkongensis   Paramesotriton laoensis   Paramesotriton sp. ROM35433   Paramesotriton sp. FMNH259125   Paramesotriton sp. TP28303   Pleurodeles poireti   Pleurodeles waltl   Salamandra algira   Salamandra atra atra   Salamandra atra aurorae   Salamandra corsica   Salamandra infraimmaculata   Salamandra infraimmaculata semenovi   Salamandra lanzai   Salamandra salamandra   Salamandrina terdigitata   Taricha granulosa   Taricha rivularis   Taricha torosa   Triturus alpestris alpestris   Triturus alpestris cyreni   Triturus boscai   Triturus carnifex carnifex   Triturus carnifex macedonicus   Triturus cristatus   Triturus dobrogicus dobrogicus   Triturus dobrogicus macrosomus   Triturus karelinii   Triturus marmoratus   Triturus montandoni   Triturus pygmaeus   Triturus vittatus ophryticus   Triturus vulgaris vulgaris   Triturus vulgaris lantzi   Tylototriton asperrimus   Tylototriton hainanensis   Tylototriton kweichowensis   Tylototriton shanjing   Tylototriton taliangensis   Tylototriton verrucosus   Tylototriton sp. ROM35330   Tylototriton wenxianensis 

Sequences 95

Sequences cited by this article.