| OTR | non-immortalized ovine trophoblast cells |
| iOTR | immortalized ovine trophoblast cells |
| TE | trophectoderm |
| SC | scramble control shRNA |
| AKD | knockdown of LIN28A |
| BKD | knockdown of LIN28B |
| EVC | iOTR cells infected with empty lentiviral expression vectors |
| AKI | iOTR cells overexpressing LIN28A |
| BKI | iOTR cells overexpressing LIN28B |