| notochordal plate |
 |
detected |
| | Expression is detected in the streak, node, notochord and midline |
| node |
 |
detected |
| | Expression is detected in the streak, node, notochord and midline |
| primitive streak |
 |
detected |
| | Expression is detected in the streak, node, notochord and midline |
| notochordal process |
 |
detected |
| | Expression is detected in the streak, node, notochord and midline |