Fig. 1

Genomic configuration of the rag and aicda loci. The configuration of the rag1-rag2 (A) and the aicda (B) loci from O. cubifrons is depicted, relative to the corresponding loci in T. rubripes. In O. cubifrons the rag1 and rag2 genes are found in a tail-to-tail configuration, with the rag1 gene comprised of three coding exons (shown in red), while the rag2 gene has a single coding exon (dark blue). The O. cubifrons aicda gene is comprised of five coding exons (B, green), and is flanked by nat14 (orange) and necap1 (light blue) genes, as is the case in T. rubripes. The depicted scale bar applies to both (A) and (B). Only coding exons are indicated. Sequences for the O. cubifrons rag- and aicda- loci are available under the GenBank accession numbers OP856783 and OP856782 respectively