Fig. 3.

Genomic analysis of zebrafish cadm genes. Comparison of the zebrafish (Dr) and mouse (Mm) loci. Exons are represented by numbered boxes. Shaded boxes show exons subjected to alternative splicing. Exon–intron boundaries that correspond between zebrafish and mouse genes are represented by dashed lines. All corresponding exons between the two species are of identical length, unless indicated otherwise in the text. The scale bar (100 nt) is for exons; the sizes of introns are indicated in kilobases. Notice that zebrafish cadm1b and 3 are both aligned on two different scaffolds in Zv7 assembled zebrafish genome. The first exon of cadm1b is found on Zv7_scaffold1472, whereas the other exons on Zv7_scaffold1487, suggesting a large first intron. Similarly, the first two exons of cadm3 are found in Zv7_scaffold147, while the rest of the gene is on Zv7_scaffold151.