Box Jellyfish are strong and very maneuverable swimmers and it has been suggested that they use their visual system to track shoals of fish, fish being their chief prey. The nervous system of cubomedusans is also more advanced, paralleling that in some hydromedusae, by possessing a definite ...
Evolutionary origin of rhopalia: insights from cellular-level analyses of Otx and POU expression patterns in the developing rhopalial nervous system. Evol Dev. 2010;12(4):404–15. Article CAS PubMed Google Scholar Mazza ME, Pang K, Martindale MQ, Finnerty JR. Genomic organization, gene ...
Fig. 2: Homeobox genomic organisation. aSchematic diagram showing origin of bilaterian homeobox gene clusters from a hypothesised ANTP class megacluster, with ParaHox cluster, Hox cluster, NK cluster, and NK2 genes located on separate chromosomes;bSchematic summary of ANTP-class homeobox gene arran...
Their primary roles in bilaterians may have been to pattern the anteroposterior axis of the nervous system (Hox) and gut (ParaHox), and functional subdivision of mesoderm (NK), but whatever the initial roles, selective pressures have maintained their gene linkages while many other ANTP class ...