Continuous dental replacement in a hyper-chisel tooth digging rodent

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Continuous dental replacement in a hyper-chisel tooth digging rodent

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Continuous dental replacement in a hyper-chisel tooth digging rodent

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Proceedings of The National Academy of Sciences of The United States of America

ISSN

0027-8424

e-ISSN

—

Svazek periodika

108

Číslo periodika v rámci svazku

42

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

17355-17359

Kód UT WoS článku

000295975300031

EID výsledku v databázi Scopus

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