Larger Image pde7b gene expression in Xenopus laevis, NF stage 25 embryo, in situ hybridization, lateral view, anterior left. Copyrighted by Pollet, Nicolas Copyright © XDB3 Gene Synonyms Species Stage(s) Tissue pde7b LOC108716793 Xenopus Throughout NF stage 25 mesoderm dorsal somite trunk somite head somite Image source: Community submitted Permanent Image Page Printer Friendly View XB-IMG-22798