Team "Genetics"
Team "Embryology"
Embryological collection
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| The team "Embryology" of the Laboratory of Genetics and Embryology of the Czech Acad. Sci. studies the ontogenesis of vertebrates, mainly the origin and development of teeth in mammals. Our laboratory owns a large embryological collection that allows an investigation of developmental processes in different taxonomic groups. The main species under study are:
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The spotted dolphin (Stenella attenuata). This mammal is adapted to the life in water, it eats fishes. It has a large number of conical teeth, which are very similar to each other (homodont dentition). The dolphin has only one generation of functional teeth (monophyodont dentition). |
| The field vole (Microtus agrestis). This is a small rodent that eats plants. In the upper and lower jaw, respectively, it has on each side one incisor and three molars. All teeth are growing all the life to compensate tooth wearing. The field vole has also only one generation of functional teeth. |
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The domestic sheep (Ovis aries). In the upper jaw, it has no incisors and canines, but on each side three premolars and molars, respectively. In the lower jaw, there are on each side three incisors, one incisiform canine, three premolars and three molars. The sheep has one deciduous and one permanent tooth generation (diphyodont dentition). |
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