Zebrafish SoxC genes are homologs of their mammalian counterparts. A Phylogenetic tree depicting the evolutionary relationships of human, mouse, and zebrafish SoxC genes generated by PhyML software (http://www.atgc-montpellier.fr/phyml/). Bootstrap values are indicated at each branch point. B Multiple alignment of the amino-acid sequences of the HMG domain of SoxC genes. High consensus sequences (>90%) are shown in red, and low consensus sequences (>50%) are in blue; hs, Homo sapiens; mm, Mus musculus; dr, Danio rerio.