Larger Image ctu1 gene expression in Xenopus laevis embryo via in situ hybridization, NF stage 28, lateral view, anterior left. Image copyrighted by Pollet, Nicolas Copyright © CNRS UMR 8080, Nicolas Pollet Image published in: AXELDB Database, AxelDB (Image Pages) Gene Synonyms Species Stage(s) Tissue ctu1.L atpbd3, ncs6 X. laevis Throughout NF stage 29 and 30 cement gland ectoderm eye head otic vesicle brain midbrain hindbrain spinal cord neural tube posterior neural tube anterior neural tube heart primordium neuroectoderm presomitic mesoderm olfactory region Image source: Large scale screen Permanent Image Page Printer Friendly View XB-IMG-28892