Genomic arrangement of Mnemiopsis photoprotein genes based on the current draft genome assembly. There are at least 10 putative full-length photoprotein genes, including seven on scaffold ML0857 and three on ML2154. There are also three partial photoprotein genes, indicated by a 'P'. Photoprotein sequences fall into three sequence groups based on similarity. Sequence groups are color-coded and labeled A, B, or C. Genomic coordinates are indicated below each gene cluster. Scaffold lengths (bp) are shown in black boxes at the end of the scaffold. Scaffolds and genes are not drawn to scale.