Schematic diagram of Tasmanian devil genomic regions containing MHC genes. Arrows represent annotated genes. BAC clones used for sequence assembly are indicated by lines below the annotation. For the Class I Region 1, alignment of two haplotypes is shown, as significant differences are found between them. The three gaps within haplotype 2 (and BAC C158O23 and C161A10) represent three segments that are not present in this haplotype as compared to haplotype 1. Asterisks indicate positions of 12 putative LINE fragments.