Comparison of the wnt4B upstream region. Shuffle-LAGAN Vista plots , for wnt4B and its 5' adjacent gene chd4. Peaks indicate conservation identity of sequences above 50% across the tested species. Blue stands for coding and pink for noncoding regions, respectively. Light blue regions represent UTRs. Yellow block 1 and green block 2 were investigated in the process of transcription factor binding site analysis (Table 1).