The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone

Abstract The astragalus is a hinged bony organ common to many tetrapods. Several factors, including allometry, phylogeny, and environment, constrain its morphology. Due to the underlying risk of these factors being confounding, previous works have frequently highlighted the difficulty in discerning...

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Main Authors: Orgebin Pierre, Ilya Dziomber, Aiglstorfer Manuela, Mennecart Bastien
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-025-07898-z
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author Orgebin Pierre
Ilya Dziomber
Aiglstorfer Manuela
Mennecart Bastien
author_facet Orgebin Pierre
Ilya Dziomber
Aiglstorfer Manuela
Mennecart Bastien
author_sort Orgebin Pierre
collection DOAJ
description Abstract The astragalus is a hinged bony organ common to many tetrapods. Several factors, including allometry, phylogeny, and environment, constrain its morphology. Due to the underlying risk of these factors being confounding, previous works have frequently highlighted the difficulty in discerning the specific influence of each factor. Here, we conducted allometric and size-adjusted clade and ecomorphological analyses to assess the contribution of each of these three parameters to the morphological variation of the astragalus in ruminant artiodactyls. 3D geometric morphometric analyses confirm the astragalus’ highly integrated structure and multifactorial morphological responses. Sturdier astragali are correlated with heavier bodies. Bovids tend to display larger proximal trochlear ridges, and moschids show a prominent posterior process. The degree of development of areas where joints and ligaments intersect reflects the degree of freedom of the ankle and the locomotion type. This study provides new perspectives on the evolution of ruminants and their interactions with their environment.
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issn 2399-3642
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spelling doaj-art-8d5fdec85c854dd98495214e369b05ef2025-08-20T02:28:42ZengNature PortfolioCommunications Biology2399-36422025-03-018111310.1038/s42003-025-07898-zThe differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle boneOrgebin Pierre0Ilya Dziomber1Aiglstorfer Manuela2Mennecart Bastien3Natural Science Collections, Martin Luther University Halle-WittenbergInstitute of Plant Sciences, Université de BerneNaturhistorisches Museum Mainz/Landessammlung für NaturkundeNaturhistorisches Museum BaselAbstract The astragalus is a hinged bony organ common to many tetrapods. Several factors, including allometry, phylogeny, and environment, constrain its morphology. Due to the underlying risk of these factors being confounding, previous works have frequently highlighted the difficulty in discerning the specific influence of each factor. Here, we conducted allometric and size-adjusted clade and ecomorphological analyses to assess the contribution of each of these three parameters to the morphological variation of the astragalus in ruminant artiodactyls. 3D geometric morphometric analyses confirm the astragalus’ highly integrated structure and multifactorial morphological responses. Sturdier astragali are correlated with heavier bodies. Bovids tend to display larger proximal trochlear ridges, and moschids show a prominent posterior process. The degree of development of areas where joints and ligaments intersect reflects the degree of freedom of the ankle and the locomotion type. This study provides new perspectives on the evolution of ruminants and their interactions with their environment.https://doi.org/10.1038/s42003-025-07898-z
spellingShingle Orgebin Pierre
Ilya Dziomber
Aiglstorfer Manuela
Mennecart Bastien
The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone
Communications Biology
title The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone
title_full The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone
title_fullStr The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone
title_full_unstemmed The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone
title_short The differentiated impacts and constraints of allometry, phylogeny, and environment on the ruminants’ ankle bone
title_sort differentiated impacts and constraints of allometry phylogeny and environment on the ruminants ankle bone
url https://doi.org/10.1038/s42003-025-07898-z
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