supported by the grants from the Major Science Programs of China(Nos.2011CBA01101 and 2011CB943904);the National Natural Science Foundation of China(Nos.30971656 and 90919011)
Nodal, a member of the transforming growth factor β (TGF-β) superfamily, has been shown to play a role in mesendoderm induction and gastrulation movements. The activity of Nodal signaling can be modulated by micro...