Figure 3.

KRT18 and MYL6 expression in in vitro produced bovine blastocysts. A) Image of the surface of a bovine blastocyst day 8 p.i.labelled for KRT18. The nuclei were stained with propidium iodide. KRT18 was expressed at the cell-cell contact sites of the trophectoderm cells. B) Image of a midplane section through a bovine blastocyst day 8 p.i. labelled with antibodies for MYL6. The nuclei were stained with propidium iodide. MYL6 proteins were located in the trophectoderm cells surrounding the blastocoel cavity.