Early amphibians evolved distinct vertebrae for habitat invasions.

Living tetrapods owe their existence to a critical moment 360-340 million years ago when their ancestors walked on land. Vertebrae are central to locomotion, yet systematic testing of correlations between vertebral form and terrestriality and subsequent reinvasions of aquatic habitats is lacking, ob...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Aja Mia Carter, S Tonia Hsieh, Peter Dodson, Lauren Sallan
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b39d7b01853b44ba8791a51d61d032f0
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b39d7b01853b44ba8791a51d61d032f0
record_format	dspace
spelling	oai:doaj.org-article:b39d7b01853b44ba8791a51d61d032f02021-12-02T20:10:55ZEarly amphibians evolved distinct vertebrae for habitat invasions.1932-620310.1371/journal.pone.0251983https://doaj.org/article/b39d7b01853b44ba8791a51d61d032f02021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251983https://doaj.org/toc/1932-6203Living tetrapods owe their existence to a critical moment 360-340 million years ago when their ancestors walked on land. Vertebrae are central to locomotion, yet systematic testing of correlations between vertebral form and terrestriality and subsequent reinvasions of aquatic habitats is lacking, obscuring our understanding of movement capabilities in early tetrapods. Here, we quantified vertebral shape across a diverse group of Paleozoic amphibians (Temnospondyli) encompassing different habitats and nearly the full range of early tetrapod vertebral shapes. We demonstrate that temnospondyls were likely ancestrally terrestrial and had several early reinvasions of aquatic habitats. We find a greater diversity in temnospondyl vertebrae than previously known. We also overturn long-held hypotheses centered on weight-bearing, showing that neural arch features, including muscle attachment, were plastic across the water-land divide and do not provide a clear signal of habitat preferences. In contrast, intercentra traits were critical, with temnospondyls repeatedly converging on distinct forms in terrestrial and aquatic taxa, with little overlap between. Through our geometric morphometric study, we have been able to document associations between vertebral shape and environmental preferences in Paleozoic tetrapods and to reveal morphological constraints imposed by vertebrae to locomotion, independent of ancestry.Aja Mia CarterS Tonia HsiehPeter DodsonLauren SallanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0251983 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aja Mia Carter S Tonia Hsieh Peter Dodson Lauren Sallan Early amphibians evolved distinct vertebrae for habitat invasions.
description	Living tetrapods owe their existence to a critical moment 360-340 million years ago when their ancestors walked on land. Vertebrae are central to locomotion, yet systematic testing of correlations between vertebral form and terrestriality and subsequent reinvasions of aquatic habitats is lacking, obscuring our understanding of movement capabilities in early tetrapods. Here, we quantified vertebral shape across a diverse group of Paleozoic amphibians (Temnospondyli) encompassing different habitats and nearly the full range of early tetrapod vertebral shapes. We demonstrate that temnospondyls were likely ancestrally terrestrial and had several early reinvasions of aquatic habitats. We find a greater diversity in temnospondyl vertebrae than previously known. We also overturn long-held hypotheses centered on weight-bearing, showing that neural arch features, including muscle attachment, were plastic across the water-land divide and do not provide a clear signal of habitat preferences. In contrast, intercentra traits were critical, with temnospondyls repeatedly converging on distinct forms in terrestrial and aquatic taxa, with little overlap between. Through our geometric morphometric study, we have been able to document associations between vertebral shape and environmental preferences in Paleozoic tetrapods and to reveal morphological constraints imposed by vertebrae to locomotion, independent of ancestry.
format	article
author	Aja Mia Carter S Tonia Hsieh Peter Dodson Lauren Sallan
author_facet	Aja Mia Carter S Tonia Hsieh Peter Dodson Lauren Sallan
author_sort	Aja Mia Carter
title	Early amphibians evolved distinct vertebrae for habitat invasions.
title_short	Early amphibians evolved distinct vertebrae for habitat invasions.
title_full	Early amphibians evolved distinct vertebrae for habitat invasions.
title_fullStr	Early amphibians evolved distinct vertebrae for habitat invasions.
title_full_unstemmed	Early amphibians evolved distinct vertebrae for habitat invasions.
title_sort	early amphibians evolved distinct vertebrae for habitat invasions.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/b39d7b01853b44ba8791a51d61d032f0
work_keys_str_mv	AT ajamiacarter earlyamphibiansevolveddistinctvertebraeforhabitatinvasions AT stoniahsieh earlyamphibiansevolveddistinctvertebraeforhabitatinvasions AT peterdodson earlyamphibiansevolveddistinctvertebraeforhabitatinvasions AT laurensallan earlyamphibiansevolveddistinctvertebraeforhabitatinvasions
_version_	1718374968353357824

Early amphibians evolved distinct vertebrae for habitat invasions.

Ejemplares similares