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Notch signaling pathway in tooth shape variations throughout evolution

ABSTRACT: Notch signaling pathway in tooth shape variations throughout evolution

PROVIDER: PRJNA817423 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18362060.fastq.gz	Fastqsanger.gz
	SRR18362061.fastq.gz	Fastqsanger.gz
	SRR18362062.fastq.gz	Fastqsanger.gz
	SRR18362063.fastq.gz	Fastqsanger.gz
	SRR18362064.fastq.gz	Fastqsanger.gz

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Notch signaling pathway in tooth shape variations throughout evolution

Project description:Evolutionary changes in vertebrates are linked to genetic alterations that often affect tooth-crown shape, which is a criterion of speciation events, especially in mammals. The Notch pathway is highly conserved between species and controls morphogenetic processes in most developing organs, including teeth. Epithelial loss of the Notch-ligand Jagged1 in developing mouse molars affects the location, size and interconnections of their cusps that lead to minor tooth-crown shape modifications convergent to those observed along Muridae evolution. RNA sequencing analysis revealed that these alterations are due to the modulation of more than 2000 genes and that Notch signaling is a hub for significant morphogenetic networks, such as Wnts and Fibroblast Growth Factors. The modeling of these tooth-crown changes in mutant mice, via a three-dimensional metamorphosis approach, allowed prediction of how Jagged1-associated mutations in humans could affect the morphology of their teeth. These results shed new light on Notch/Jagged1-mediated signaling as one of the crucial components for dental variations in evolution.

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