Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia)
Embryogenesis of cetaceans (whales, dolphins, porpoises) is best known in Stenella attenuata, the pan‐tropical spotted dolphin, based on a remarkably complete and well‐studied prenatal ontogenetic series. Our study expands understanding of cetacean embryology by adding two additional cetacean taxa:...
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ftpubmed:oai:pubmedcentral.nih.gov:10107513 2023-06-11T04:10:26+02:00 Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) Gavazzi, Lia Cooper, Lisa N. Usip, Sharon Suydam, Robert Stimmelmayr, Raphaela George, John C. O'Corry‐Crowe, Greg Hsu, Chih‐Wei Thewissen, Johannes 2023-01-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10107513/ http://www.ncbi.nlm.nih.gov/pubmed/36538588 https://doi.org/10.1002/jmor.21543 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10107513/ http://www.ncbi.nlm.nih.gov/pubmed/36538588 http://dx.doi.org/10.1002/jmor.21543 © 2022 The Authors. Journal of Morphology published by Wiley Periodicals LLC. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. J Morphol Research Articles Text 2023 ftpubmed https://doi.org/10.1002/jmor.21543 2023-04-23T00:49:14Z Embryogenesis of cetaceans (whales, dolphins, porpoises) is best known in Stenella attenuata, the pan‐tropical spotted dolphin, based on a remarkably complete and well‐studied prenatal ontogenetic series. Our study expands understanding of cetacean embryology by adding two additional cetacean taxa: the beluga whale (Delphinapterus leucas, Odontoceti), and the bowhead whale (Balaena mysticetus, Mysticeti). We identify key features that characterize these taxa at specific stages and highlight heterochrony between the odontocetes and mysticetes. The toothed whales are more similar in developmental timing to each other than either is to Balaena. The two odontocete taxa, Stenella and Delphinapterus, share similar developmental trajectories while early Balaena specimens differ from the odontocetes. This developmental variation proves challenging to ascribe to the existing Carnegie staging system. Most notably, flippers, hindlimbs, and flukes all provide morphological traits for characterization within the Carnegie staging system. A presomitic Delphinapterus embryo is also described. This study applies the Carnegie staging system to two more cetacean taxa and forms a framework for future research on cetacean developmental genetics and the modeling of fetal growth. Text Balaena mysticetus Beluga Beluga whale Beluga* bowhead whale Delphinapterus leucas toothed whales PubMed Central (PMC) Journal of Morphology 284 2 |
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Research Articles |
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Research Articles Gavazzi, Lia Cooper, Lisa N. Usip, Sharon Suydam, Robert Stimmelmayr, Raphaela George, John C. O'Corry‐Crowe, Greg Hsu, Chih‐Wei Thewissen, Johannes Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) |
topic_facet |
Research Articles |
description |
Embryogenesis of cetaceans (whales, dolphins, porpoises) is best known in Stenella attenuata, the pan‐tropical spotted dolphin, based on a remarkably complete and well‐studied prenatal ontogenetic series. Our study expands understanding of cetacean embryology by adding two additional cetacean taxa: the beluga whale (Delphinapterus leucas, Odontoceti), and the bowhead whale (Balaena mysticetus, Mysticeti). We identify key features that characterize these taxa at specific stages and highlight heterochrony between the odontocetes and mysticetes. The toothed whales are more similar in developmental timing to each other than either is to Balaena. The two odontocete taxa, Stenella and Delphinapterus, share similar developmental trajectories while early Balaena specimens differ from the odontocetes. This developmental variation proves challenging to ascribe to the existing Carnegie staging system. Most notably, flippers, hindlimbs, and flukes all provide morphological traits for characterization within the Carnegie staging system. A presomitic Delphinapterus embryo is also described. This study applies the Carnegie staging system to two more cetacean taxa and forms a framework for future research on cetacean developmental genetics and the modeling of fetal growth. |
format |
Text |
author |
Gavazzi, Lia Cooper, Lisa N. Usip, Sharon Suydam, Robert Stimmelmayr, Raphaela George, John C. O'Corry‐Crowe, Greg Hsu, Chih‐Wei Thewissen, Johannes |
author_facet |
Gavazzi, Lia Cooper, Lisa N. Usip, Sharon Suydam, Robert Stimmelmayr, Raphaela George, John C. O'Corry‐Crowe, Greg Hsu, Chih‐Wei Thewissen, Johannes |
author_sort |
Gavazzi, Lia |
title |
Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) |
title_short |
Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) |
title_full |
Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) |
title_fullStr |
Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) |
title_full_unstemmed |
Comparative embryology of Delphinapterus leucas (beluga whale), Balaena mysticetus (bowhead whale), and Stenella attenuata (pan‐tropical spotted dolphin) (Cetacea: Mammalia) |
title_sort |
comparative embryology of delphinapterus leucas (beluga whale), balaena mysticetus (bowhead whale), and stenella attenuata (pan‐tropical spotted dolphin) (cetacea: mammalia) |
publisher |
John Wiley and Sons Inc. |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10107513/ http://www.ncbi.nlm.nih.gov/pubmed/36538588 https://doi.org/10.1002/jmor.21543 |
genre |
Balaena mysticetus Beluga Beluga whale Beluga* bowhead whale Delphinapterus leucas toothed whales |
genre_facet |
Balaena mysticetus Beluga Beluga whale Beluga* bowhead whale Delphinapterus leucas toothed whales |
op_source |
J Morphol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10107513/ http://www.ncbi.nlm.nih.gov/pubmed/36538588 http://dx.doi.org/10.1002/jmor.21543 |
op_rights |
© 2022 The Authors. Journal of Morphology published by Wiley Periodicals LLC. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_doi |
https://doi.org/10.1002/jmor.21543 |
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Journal of Morphology |
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284 |
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2 |
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1768384832610500608 |