Continuous dental replacement in a hyper-chisel tooth digging rodent
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F11%3A43881333" target="_blank" >RIV/60076658:12310/11:43881333 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1073/pnas.1109615108" target="_blank" >http://dx.doi.org/10.1073/pnas.1109615108</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1073/pnas.1109615108" target="_blank" >10.1073/pnas.1109615108</a>
Alternative languages
Result language
angličtina
Original language name
Continuous dental replacement in a hyper-chisel tooth digging rodent
Original language description
Contrary to their reptilian ancestors, which had numerous dental generations, mammals are known to usually develop only two generations of teeth. However, a few mammal species have acquired the ability to continuously replace their dentition by the constant addition of supernumerary teeth moving secondarily toward the front of the jaw. The resulting treadmill-like replacement is thus horizontal, and differs completely from the vertical dental succession of other mammals and their extinct relatives. Despite the developmental implications and prospects regarding the origin of supernumerary teeth, this striking innovation remains poorly documented. Here we report another case of continuous dental replacement in an African rodent, Heliophobius argenteocinereus, which combines this dental system with the progressive eruption of high-crowned teeth. The escalator-like mechanism of Heliophobius constitutes an original adaptation to hyper-chisel tooth digging involving high dental wear. Compari
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of The National Academy of Sciences of The United States of America
ISSN
0027-8424
e-ISSN
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Volume of the periodical
108
Issue of the periodical within the volume
42
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
17355-17359
UT code for WoS article
000295975300031
EID of the result in the Scopus database
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