Table 4.
Summary of Platynereis expression patterns during embryonic and post-embryonic development
| |
|
Segmentation process |
Nervous system patterning |
Other organogenesis |
Others | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Figure |
SAZ |
Stripes |
Segment epidermis patterning | Midline | VNC | PNS | Brain cells | Chaetal sacs | Stomodeum | Midgut | Parapodia | ||||
| Number | Ecto | Meso | Ecto | Meso | |||||||||||
|
Pdu-Hes 1 |
6 |
|
|
|
|
x |
x |
|
|
|
|
x |
|
|
24 hpf: ectodermal columns; 48 hpf: apical organ |
|
Pdu-Hes 1 PE |
x |
|
|
|
x |
x |
|
|
|
|
|
|
|
Anal cirri tentacles |
|
|
Pdu-Hes 2 |
7 |
x |
|
|
|
|
|
|
|
x |
x |
|
|
|
24 hpf: ectodermal patches |
|
Pdu-Hes 2 PE |
x |
|
|
|
|
|
|
|
|
x |
|
|
x |
Ectodermal columns |
|
|
Pdu-Hes 3 |
8 |
|
|
|
|
|
|
|
|
|
|
|
|
x |
|
|
Pdu-Hes 3 PE |
|
|
|
|
|
|
x |
|
|
|
|
|
x |
|
|
|
Pdu-Hes 4 |
9 |
|
x |
|
|
|
|
|
|
x |
|
x |
x |
x |
|
|
Pdu-Hes 4 PE |
x |
|
|
|
x |
|
|
|
|
|
|
|
x |
Blood vessels |
|
|
Pdu-Hes 5 |
10 |
|
x |
|
|
|
|
|
|
x |
|
x |
x |
x |
|
|
Pdu-Hes 5 PE |
x |
x |
|
x |
x |
|
|
|
|
|
|
|
x |
|
|
|
Pdu-Hes 6 |
11 |
|
|
|
|
x |
x |
|
|
x |
|
x |
|
x |
|
|
Pdu-Hes 6 PE |
x |
|
|
|
x |
x |
|
|
|
|
|
|
|
|
|
|
Pdu-Hes 8 |
12 |
|
x |
|
|
x |
|
|
|
x |
|
x |
|
x |
|
|
Pdu-Hes 8 PE |
x |
|
|
|
x |
x |
|
|
|
|
|
|
|
Anal cirri tentacles |
|
|
Pdu-Hes 10 |
13 |
|
|
|
|
|
|
|
|
x |
|
x |
x |
|
|
|
Pdu-Hes 10 PE |
|
|
|
|
|
|
x |
x |
|
|
|
|
|
|
|
|
Pdu-Hes 12 |
14 |
|
|
|
|
|
|
x |
|
|
x |
x |
|
|
|
|
Pdu-Hes 12 PE |
|
|
|
|
|
|
|
|
|
x |
|
|
|
|
|
|
Pdu-Hes 13 |
15 |
|
|
|
|
|
|
x |
|
x |
|
x |
x |
|
24 hpf: ectodermal patches |
|
Pdu-Hes 13 PE |
|
|
|
|
|
|
x |
|
|
|
|
|
|
Dispersed gut cells |
|
|
Pdu-Hey |
16 |
|
|
|
|
|
|
x |
|
x |
|
x |
|
x |
|
| Pdu-Hey PE | x | ||||||||||||||
Platynereis Hes/Hey-related genes are mainly (but not only) expressed in cells, tissues, organs or structures that are related to the patterning of two major developmental processes: segmentation and nervous system patterning. Hpf, hours post fertilization.