Skeletal elements within teleost eyes and a discussion of their homology
Abstract Scleral ossicles and scleral cartilages form part of the craniofacial skeleton of many vertebrates. Some vertebrates, including all birds and most reptiles, but excluding most mammals, have scleral cartilages as well as scleral ossicles supporting their eyes. The teleost equivalent of these...
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crwiley:10.1002/jmor.10479 2024-06-02T08:14:00+00:00 Skeletal elements within teleost eyes and a discussion of their homology Franz‐Odendaal, Tamara A. Hall, Brian K. 2006 http://dx.doi.org/10.1002/jmor.10479 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.10479 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.10479 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Morphology volume 267, issue 11, page 1326-1337 ISSN 0362-2525 1097-4687 journal-article 2006 crwiley https://doi.org/10.1002/jmor.10479 2024-05-03T11:27:22Z Abstract Scleral ossicles and scleral cartilages form part of the craniofacial skeleton of many vertebrates. Some vertebrates, including all birds and most reptiles, but excluding most mammals, have scleral cartilages as well as scleral ossicles supporting their eyes. The teleost equivalent of these elements has received little attention in the literature. From radiographic and whole‐mount analyses of over 400 individuals from 376 teleost species, we conclude that the teleost scleral skeletal elements (ossicles and cartilage) differ significantly from those of reptiles (including birds). Scleral ossicles in teleosts have different developmental origins, different positions within the eyeball, and different relationships with the scleral cartilaginous element than those in reptiles. From whole‐mount staining of a growth series of four species of teleost ( Danio rerio, Salmo salar, Esox lucius, and Alosa pseudoharengus ), we interpret the development of these elements and show that they arise from within an Alcian blue‐staining cartilaginous ring that develops around the eye earlier in development. We present possible scenarios on the evolution of these scleral skeletal elements from a common gnathostome ancestor, and consider that teleost scleral skeletal elements may not be homologous to those in reptiles. Our study indicates that homology cannot be assumed for these elements, despite the fact that they share the same name, scleral ossicles. J. Morphol., 2006. © 2006 Wiley‐Liss, Inc. Article in Journal/Newspaper Salmo salar Wiley Online Library Journal of Morphology 267 11 1326 1337 |
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Wiley Online Library |
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English |
description |
Abstract Scleral ossicles and scleral cartilages form part of the craniofacial skeleton of many vertebrates. Some vertebrates, including all birds and most reptiles, but excluding most mammals, have scleral cartilages as well as scleral ossicles supporting their eyes. The teleost equivalent of these elements has received little attention in the literature. From radiographic and whole‐mount analyses of over 400 individuals from 376 teleost species, we conclude that the teleost scleral skeletal elements (ossicles and cartilage) differ significantly from those of reptiles (including birds). Scleral ossicles in teleosts have different developmental origins, different positions within the eyeball, and different relationships with the scleral cartilaginous element than those in reptiles. From whole‐mount staining of a growth series of four species of teleost ( Danio rerio, Salmo salar, Esox lucius, and Alosa pseudoharengus ), we interpret the development of these elements and show that they arise from within an Alcian blue‐staining cartilaginous ring that develops around the eye earlier in development. We present possible scenarios on the evolution of these scleral skeletal elements from a common gnathostome ancestor, and consider that teleost scleral skeletal elements may not be homologous to those in reptiles. Our study indicates that homology cannot be assumed for these elements, despite the fact that they share the same name, scleral ossicles. J. Morphol., 2006. © 2006 Wiley‐Liss, Inc. |
format |
Article in Journal/Newspaper |
author |
Franz‐Odendaal, Tamara A. Hall, Brian K. |
spellingShingle |
Franz‐Odendaal, Tamara A. Hall, Brian K. Skeletal elements within teleost eyes and a discussion of their homology |
author_facet |
Franz‐Odendaal, Tamara A. Hall, Brian K. |
author_sort |
Franz‐Odendaal, Tamara A. |
title |
Skeletal elements within teleost eyes and a discussion of their homology |
title_short |
Skeletal elements within teleost eyes and a discussion of their homology |
title_full |
Skeletal elements within teleost eyes and a discussion of their homology |
title_fullStr |
Skeletal elements within teleost eyes and a discussion of their homology |
title_full_unstemmed |
Skeletal elements within teleost eyes and a discussion of their homology |
title_sort |
skeletal elements within teleost eyes and a discussion of their homology |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1002/jmor.10479 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.10479 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.10479 |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
Journal of Morphology volume 267, issue 11, page 1326-1337 ISSN 0362-2525 1097-4687 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jmor.10479 |
container_title |
Journal of Morphology |
container_volume |
267 |
container_issue |
11 |
container_start_page |
1326 |
op_container_end_page |
1337 |
_version_ |
1800737686083862528 |