branchial arch |
|
detected |
| | See arrows in Fig 3G. |
gut |
|
detected |
| regional | Expressed in a discrete region of the gut (see arrow in Fig 3H). Transverse sections reveal Igsf8 expression in the dorsal epithelium of the gut (white arrow, Fig3J). |
neural tube |
|
detected |
| regional | Expressed as a longitudinal stripe, which in dorsal view appears as two domains on either side of the midline. See Fig3F. Intense expression is apparent in the ventral one-third of the neural tube (black arrow, Fig3J,K) but with absence from the floor plate (white arrowhead, Fig3J) and from the region of differentiating motor neurons (black arrowhead, Fig3J) |
3rd branchial arch ectoderm |
|
detected |
| | Transverse sections reveal Igsf8 expression in the mesodermal (arrow) and ectodermal (arrowhead) cell layers of the third pharyngeal arch (Fig3I) |
3rd branchial arch mesenchyme |
|
detected |
| | Transverse sections reveal Igsf8 expression in the mesodermal (arrow) and ectodermal (arrowhead) cell layers of the third pharyngeal arch (Fig3I) |
neural tube floor plate |
|
not detected |
| homogeneous | Absence of expression from the floor plate (white arrowhead, Fig3J) |