Fig. 5From: Mutation of amphioxus Pdx and Cdx demonstrates conserved roles for ParaHox genes in gut, anus and tail patterningReporter gene analysis of Cyp26-3. a Region 5′ of Cyp26-3 gene showing two putative Cdx-binding sites (BS1, BS2). Numbers are distance before start codon. Four reporter gene constructs were tested in amphioxus embryos with 0, 1 or 2 Cdx sites mutated. b Violin plot showing relative levels of luciferase expression for each construct, a control luciferase vector pGL3 without Cyp26-3 sequence, and uninjected control (values in Additional file 1: Table S4)Back to article page