Larger Image Etv1 expression in stage 26 Xenopus embryo, lateral view tail only, in situ hybridization. Copyright © XDB3, Naoto Ueno Image published in: NIBB XDB3 (Probe Pages), NIBB XDB3 Images Gene Synonyms Species Stage(s) Tissue etv1.S er81, XER81 X. laevis Throughout NF stage 26 tail bud Image source: Large scale screen Permanent Image Page Printer Friendly View XB-IMG-15224