The remarkable dynamics in the establishment, rearrangement, and loss of dentition during the ontogeny of the sterlet sturgeon
| العنوان: | The remarkable dynamics in the establishment, rearrangement, and loss of dentition during the ontogeny of the sterlet sturgeon |
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| المؤلفون: | Jindrich Brejcha, Anna Pospisilova, Brian D. Metscher, Vladimir Soukup, Martin Pšenička, Jan Stundl, Robert Cerny |
| المصدر: | Developmental Dynamics. 251:826-845 |
| بيانات النشر: | Wiley, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Dentition, biology, Lineage (evolution), Ontogeny, Fishes, Vertebrate, Biological Evolution, Dental lamina, Sturgeon, Extant taxon, Evolutionary biology, biology.animal, Vertebrates, Animals, Odontogenesis, Evolutionary dynamics, Tooth, Developmental Biology |
| الوصف: | BACKGROUND Sturgeons belong to an early-branching lineage often used as a proxy of ancestor-like traits of ray-finned fishes. However, many features of this lineage, such as the transitory presence and the eventual loss of dentition, exemplify specializations that, in fact, provide important information on lineage-specific evolutionary dynamics. RESULTS Here, we introduce a detailed overview of the dentition during the development of the sterlet sturgeon. The dentition is composed of tooth fields at oral, palatal, and anterior pharyngeal regions. Oral fields are single-rowed, non-renewed and are shed early. Palatal and pharyngeal fields are multi-rowed and renewed from the adjacent superficial epithelium without the presence of the successional dental lamina. The early loss of oral fields and subsequent establishment of palatal and pharyngeal fields leads to a translocation of the functional dentition from the front to the rear of the oropharyngeal cavity until the eventual loss of all teeth. CONCLUSION Our survey shows the sterlet dentition as a dynamic organ system displaying differential composition at different time points in the lifetime of this fish. These dynamics represent a conspicuous feature of sturgeons, unparalleled among extant vertebrates, and appropriate to scrutinize developmental and evolutionary underpinnings of vertebrate odontogenesis. This article is protected by copyright. All rights reserved. |
| وصف الملف: | application/pdf |
| تدمد: | 1097-0177 1058-8388 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48441274e2af039711c066cefde8a5bcTest https://doi.org/10.1002/dvdy.444Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....48441274e2af039711c066cefde8a5bc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10970177 10588388 |
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