- C. Birchmeier
- Cell Stem Cell
- Cell Stem Cell 30 (7): 907-908
In this issue, Lazaro et al. use iPSC-derived presomitic mesoderm cells to analyze the oscillatory expression of somitic clock genes. Comparison of a wide range of species, including mouse, rabbit, cattle, rhinoceros, human, and marmoset, demonstrates an excellent correlation between biochemical reaction speed and the tempo of the clock.