On the origins of endothermy in amniotes.
| Autor: | Faure-Brac MG; Naturhistorisk museum, Univeristetet i Oslo, Sars' gate 1, 0562 Oslo, Norway., Woodward HN; Department of Anatomy and Cell Biology, Oklahoma State University Center for Health Sciences, 1111 W. 17th Street, Tulsa, OK 74107, USA., Aubier P; Sorbonne Université, Muséum national d'Histoire naturelle, CNRS, Centre de Recherche en Paléontologie - Paris (CR2P - UMR 7207), 4 place Jussieu, 75005 Paris, France., Cubo J; Sorbonne Université, Muséum national d'Histoire naturelle, CNRS, Centre de Recherche en Paléontologie - Paris (CR2P - UMR 7207), 4 place Jussieu, 75005 Paris, France. |
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| Jazyk: | angličtina |
| Zdroj: | IScience [iScience] 2024 Mar 02; Vol. 27 (4), pp. 109375. Date of Electronic Publication: 2024 Mar 02 (Print Publication: 2024). |
| DOI: | 10.1016/j.isci.2024.109375 |
| Abstrakt: | A recent study showed evidence that endothermy was ancestral for amniotes using a variety of proxies and a large sample of taxa. However, it did not include numerous crucial taxa. We reevaluated this hypothesis using a large sample of early amniotes and tetrapodomorphs. We inferred the probability of endothermy for each taxon using a model constructed through phylogenetic logistic regressions and using the size of their bone vascular cavities. An ancestral state reconstruction, based on these inferences, was performed to assess the probability of an ancestral endothermy at the node Amniota. Most outgroups were recovered as ectothermic, as is the node Amniota. Our results contradict the hypothesis of an ancestral endothermy and support several independent acquisitions. We discuss that endothermy should be regarded as a collection of acquisitions forming an "endothermic engine" and that studies aimed at inferring endothermy should consider as many of these features as possible. Competing Interests: The authors have nothing to declare. (© 2024 The Author(s).) |
| Databáze: | MEDLINE |
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