Additional file 9.

Download video file ^{(14.8MB, mp4)}

Movie of average MIP expression in 6 dpf Platynereis in relation to digestive system marker genes. Surface representation of the average expression domains of MIP (blue) at 6 dpf relative to the axonal scaffold (grey). Surface representations of digestive enzyme genes are added sequentially to mark the digestive system. In order of appearance, genes are: alpha amylase (orange), enteropeptidase (cyan), subtilisin-2 (green), legumain protease precursor (purple), and subtilisin-1 (pink). Movie starts in dorsal view with head to the top and rotates around anterior-posterior axis.