Gene, die die Zahnform bestimmen, identifiziert: Wissenschaftler fanden erhebliche Zahnunterschiede zwischen ethnischen Gruppen, möglicherweise teilweise aufgrund eines von Neandertalern geerbten Gens, das nur bei Studienteilnehmern europäischer Herkunft gefunden wurde

>“We have now identified numerous genes that impact the development of our teeth, some of which are responsible for differences between ethnic groups.”

>One of the novel associations was on a gene believed to be inherited from Neanderthals due to interbreeding with ancient humans. This genetic variant, which contributes to the biological pathway of tooth development, was only found in those of European descent, and carriers of the variant have thinner incisors (thickness of the incisors, the eight teeth situated at the front of the mouth, was measured from back to front). On the whole, those of European descent had smaller teeth.
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>The researchers also found associations with tooth dimensions on a gene, EDAR, that was already known to impact incisor shape in East Asian people, while the new study found that the gene also determined the width of all teeth

Paper: [PITX2 expression and Neanderthal introgression in HS3ST3A1 contribute to variation in tooth dimensions in modern humans: Current Biology](https://www.cell.com/current-biology/fulltext/S0960-9822(24)01568-9)