Evolutionary mechanisms modulating the mammalian skull development

Kyomen, Stella; Murillo-Rincón, Andrea P.; Kaucká, Markéta

doi:10.1098/rstb.2022.0080

Cited by 2 publications

(1 citation statement)

References 173 publications

(258 reference statements)

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“…The review paper by Kyomen et al . [ 16 ] focuses on the molecular control of the processes of evolutionary heterochrony, heterotopy and heterometry in mammalian skull, guiding the reader through the intricacies of the shape variability and cranial adaptive modifications in mammals.…”

Section: Development and Evolutionmentioning

confidence: 99%

The mammalian skull: development, structure and function

Fostowicz‐Frelik

Tseng

2023

Phil. Trans. R. Soc. B

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The mammalian skull is an informative and versatile study system critical to research efforts across the broad spectrum of molecular, cellular, organismal and evolutionary sciences. The amount of knowledge concerning mammalian skull continues to grow exponentially, fuelled by the advent of new research methods and new material. Computed microtomography, including X-ray imaging using synchrotron radiation, proved to be an important tool for the descriptive and quantitative analysis of cranial anatomy. A major conceptual change, namely combining genetics and development with evolution into ‘evo-devo’ studies, also contributed to our knowledge of the mammalian skull enormously. These advances, coupled with novel techniques now allow researchers to integrate the process of cranial development with data from the fossil record, which is also augmented by seminal discoveries from Africa, Asia and both Americas. However, for decades, there has been no comprehensive source covering fundamental aspects of this vibrant field of evolutionary biology. To address this gap, we offer in this theme issue a balanced mix of research papers and reviews from leading experts in the field and a younger generation of scientists from five continents. This article is part of the theme issue ‘The mammalian skull: development, structure and function’.

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Section: Development and Evolutionmentioning

confidence: 99%

The mammalian skull: development, structure and function

Fostowicz‐Frelik

Tseng

2023

Phil. Trans. R. Soc. B

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Prenatal growth patterns of the upper jaw complex with implications for laryngeal echolocation in bats

Pommery,

Koyabu,

Meguro

et al. 2024

Journal of Anatomy

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Craniofacial morphology is extremely diversified within bat phylogeny, however growth and development of the palate in bats remains unstudied. The formation of both midline and bilateral orofacial clefts in laryngeally echolocating bats, morphologically similar to the syndromic and non‐syndromic cleft palate in humans, are not well understood. Developmental series of prenatal samples (n = 128) and adults (n = 10) of eight bat species (two pteropodids, four rhinolophoids, and two yangochiropterans), and two non‐bat mammals (Mus musculus and Erinaceus amurensis), were CT‐scanned and cranial bones forming the upper jaw complex were three‐dimensionally visualised to assess whether differences in palate development can be observed across bat phylogeny. Volumetric data of bones composing the upper jaw complex were measured to quantify palate growth. The premaxilla is relatively reduced in bats compared to other mammals and its shape is heterogeneous depending on the presence and type of orofacial cleft across bat phylogeny. The palatine process of premaxillary bones is lacking in pteropodids and yangochiropterans, whereas the premaxilla is a mobile structure which is only in contact caudally with the maxilla by a fibrous membrane or suture in rhinolophoids. In all bats, maxillary bones progressively extend caudally and palatine bones, in some cases split into three branches, extend caudally so that they are completely fused to another one medially prior to the birth. Ossification of the vomer and fusion of the maxillary and palatine bones occur earlier in rhinolophoids than in pteropodids and yangochiropterans. The vomer ossifies bilaterally from two different ossification centres in yangochiropterans, which is uncommon in other bats and non‐bat mammals. Analysis of ontogenetic allometric trajectories of the upper jaw complex revealed faster development of maxillary, vomer, and palatine bones in yangochiropterans compared to other bats, especially rhinolophoids. Ancestral state reconstruction revealed that yangochiropterans have a higher magnitude of change in ossification rate compared to other bats and E. amurensis a lower magnitude compared to M. musculus and bats. This study provides new evidence of heterochronic shifts in craniofacial development and growth across bat phylogeny that can improve understanding of the developmental differences characterising nasal and oral emission strategies.

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Evolutionary mechanisms modulating the mammalian skull development

Cited by 2 publications

References 173 publications

The mammalian skull: development, structure and function

The mammalian skull: development, structure and function

Prenatal growth patterns of the upper jaw complex with implications for laryngeal echolocation in bats

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