From: Evolution of bilaterian central nervous systems: a single origin?
Gene | S. kowalevskii | B. floridae | C. intestinalis | Vertebrate | References | ||||
---|---|---|---|---|---|---|---|---|---|
s.e. | CNCa | s.e. | CNS | Ectoderm | CNS | Placode | CNS | Â | |
SoxB | + | + | + | + | + | + | + | + | [131] |
Hu/Elav | + | + | + | + | ? | ? | + | + | Â |
Nrp/Musashi | + | + | + | + | ? | + | + | + | [141] |
Vax | + | – | ? | ? | gene | lost | – | retina, forebrain | [142] |
Rx | + | – | – | + | – | + | – | + | |
Six3 | + | +/− | + | + | – | + | – | + | |
Nkx2.1 | + | – | – | + | ? | ? | – | + | |
Bf-1 | + | +/− | + | + | + | ? | + | + | |
Dlx | + | + | + | + | + | + | + | + | [77] |
Pax6 | + | + | + | + | – | + | + | + | [75] |
Tll/Tlx | + | +/− | + | + | ? | ? | + | + | |
BarH | + | + | ? | ? | ? | ? | + | + | [149] |
Emx | + | + | ? | ? | ? | ? | + | + | [150] |
Otp | + | ? | ? | ? | + | + | ? | + | |
Dbx | + | + | ? | ? | ? | ? | – | + | [152] |
Lim1/5 | + | + | + | + | ? | ? | + | + | [153] |
Irx | + | + | + | + | ? | ? | + | + | [154] |
Otx | + | + | – | + | + | + | + | + | |
En | + | + | + | + | – | + | + lamprey | + | |
Gbx | + | + | + | + | gene | lost | + | + | [142] |
Hox1 | + | + | + | + | + | + | + | + | |
Hox3 | + | – | + | + | + | + | + | + | |
Hox4 | + | ? | + | + | – | – | – | + | [156] |
Hox7/8 | + | ? | ? | ? | gene | Lost | – | + | [156] |
Hox11/13 | + | – | ? | ? | Hox12+ | Hox12+ | Hox11+ | + |