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Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology

The diversity of the vertebrate cranial shape of phylogenetically related taxa allows conclusions on ecology and life history. As pleurodeline newts (the genera Echinotriton, Pleurodeles and Tylototriton) have polymorphic reproductive modes, they are highly suitable for following cranial shape evolu...

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Autores principales: Pogoda, Peter, Zuber, Marcus, Baumbach, Tilo, Schoch, Rainer R., Kupfer, Alexander
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7369190/
https://www.ncbi.nlm.nih.gov/pubmed/32297321
http://dx.doi.org/10.1111/joa.13201
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author Pogoda, Peter
Zuber, Marcus
Baumbach, Tilo
Schoch, Rainer R.
Kupfer, Alexander
author_facet Pogoda, Peter
Zuber, Marcus
Baumbach, Tilo
Schoch, Rainer R.
Kupfer, Alexander
author_sort Pogoda, Peter
collection PubMed
description The diversity of the vertebrate cranial shape of phylogenetically related taxa allows conclusions on ecology and life history. As pleurodeline newts (the genera Echinotriton, Pleurodeles and Tylototriton) have polymorphic reproductive modes, they are highly suitable for following cranial shape evolution in relation to reproduction and environment. We investigated interspecific differences externally and differences in the cranial shape of pleurodeline newts via two‐dimensional geometric morphometrics. Our analyses also included the closely related but extinct genus Chelotriton to better follow the evolutionary history of cranial shape. Pleurodeles was morphologically distinct in relation to other phylogenetically basal salamanders. The subgenera within Tylototriton (Tylototriton and Yaotriton) were well separated in morphospace, whereas Echinotriton resembled the subgenus Yaotriton more than Tylototriton. Oviposition site choice correlated with phylogeny and morphology. Only the mating mode, with a random distribution along the phylogenetic tree, separated crocodile newts into two morphologically distinct groups. Extinct Chelotriton likely represented several species and were morphologically and ecologically more similar to Echinotriton and Yaotriton than to Tylototriton subgenera. Our data also provide the first comprehensive morphological support for the molecular phylogeny of pleurodeline newts.
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spelling pubmed-73691902020-07-21 Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology Pogoda, Peter Zuber, Marcus Baumbach, Tilo Schoch, Rainer R. Kupfer, Alexander J Anat Original Articles The diversity of the vertebrate cranial shape of phylogenetically related taxa allows conclusions on ecology and life history. As pleurodeline newts (the genera Echinotriton, Pleurodeles and Tylototriton) have polymorphic reproductive modes, they are highly suitable for following cranial shape evolution in relation to reproduction and environment. We investigated interspecific differences externally and differences in the cranial shape of pleurodeline newts via two‐dimensional geometric morphometrics. Our analyses also included the closely related but extinct genus Chelotriton to better follow the evolutionary history of cranial shape. Pleurodeles was morphologically distinct in relation to other phylogenetically basal salamanders. The subgenera within Tylototriton (Tylototriton and Yaotriton) were well separated in morphospace, whereas Echinotriton resembled the subgenus Yaotriton more than Tylototriton. Oviposition site choice correlated with phylogeny and morphology. Only the mating mode, with a random distribution along the phylogenetic tree, separated crocodile newts into two morphologically distinct groups. Extinct Chelotriton likely represented several species and were morphologically and ecologically more similar to Echinotriton and Yaotriton than to Tylototriton subgenera. Our data also provide the first comprehensive morphological support for the molecular phylogeny of pleurodeline newts. John Wiley and Sons Inc. 2020-04-15 2020-08 /pmc/articles/PMC7369190/ /pubmed/32297321 http://dx.doi.org/10.1111/joa.13201 Text en © 2020 The Authors. Journal of Anatomy published by John Wiley & Sons Ltd on behalf of Anatomical Society This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Pogoda, Peter
Zuber, Marcus
Baumbach, Tilo
Schoch, Rainer R.
Kupfer, Alexander
Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
title Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
title_full Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
title_fullStr Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
title_full_unstemmed Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
title_short Cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
title_sort cranial shape evolution of extant and fossil crocodile newts and its relation to reproduction and ecology
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7369190/
https://www.ncbi.nlm.nih.gov/pubmed/32297321
http://dx.doi.org/10.1111/joa.13201
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