Getting out of an egg: Merging of tooth germs to create an egg tooth in the snake

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F20%3A00533583" target="_blank" >RIV/67985904:_____/20:00533583 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378041:_____/20:00533583 RIV/00216224:14310/20:00115552

Výsledek na webu

<a href="https://anatomypubs.onlinelibrary.wiley.com/doi/abs/10.1002/dvdy.120" target="_blank" >https://anatomypubs.onlinelibrary.wiley.com/doi/abs/10.1002/dvdy.120</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/dvdy.120" target="_blank" >10.1002/dvdy.120</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Getting out of an egg: Merging of tooth germs to create an egg tooth in the snake

Popis výsledku v původním jazyce

Background The egg tooth is a vital structure allowing hatchlings to escape from the egg. In squamates (snakes and lizards), the egg tooth is a real tooth that develops within the oral cavity at the top of the upper jaw. Most squamates have a single large midline egg tooth at hatching, but a few families, such as Gekkonidae, have two egg teeth. In snakes the egg tooth is significantly larger than the rest of the dentition and is one of the first teeth to develop. Results We follow the development of the egg tooth in four snake species and show that the single egg tooth is formed by two tooth germs. These two tooth germs are united at the midline and grow together to produce a single tooth. In culture, this merging can be perturbed to give rise to separate smaller teeth, confirming the potential of the developing egg tooth to form two teeth. Conclusions Our data agrees with previous hypotheses that during evolution one potential mechanism to generate a large tooth is through congrescence of multiple tooth germs and suggests that the ancestors of snakes could have had two egg teeth.

Název v anglickém jazyce

Getting out of an egg: Merging of tooth germs to create an egg tooth in the snake

Popis výsledku anglicky

Background The egg tooth is a vital structure allowing hatchlings to escape from the egg. In squamates (snakes and lizards), the egg tooth is a real tooth that develops within the oral cavity at the top of the upper jaw. Most squamates have a single large midline egg tooth at hatching, but a few families, such as Gekkonidae, have two egg teeth. In snakes the egg tooth is significantly larger than the rest of the dentition and is one of the first teeth to develop. Results We follow the development of the egg tooth in four snake species and show that the single egg tooth is formed by two tooth germs. These two tooth germs are united at the midline and grow together to produce a single tooth. In culture, this merging can be perturbed to give rise to separate smaller teeth, confirming the potential of the developing egg tooth to form two teeth. Conclusions Our data agrees with previous hypotheses that during evolution one potential mechanism to generate a large tooth is through congrescence of multiple tooth germs and suggests that the ancestors of snakes could have had two egg teeth.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10605 - Developmental biology

Projekt

<a href="/cs/project/GA18-04859S" target="_blank" >GA18-04859S: Určení buněčného osudu v zubní plakodě: výzkum signálních faktorů, které determinují předurčení osudu buněk v časné ústní dutině</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Developmental Dynamics

ISSN

1058-8388

e-ISSN

—

Svazek periodika

249

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

199-208

Kód UT WoS článku

000490019300001

EID výsledku v databázi Scopus

2-s2.0-85074363381