Six3 demarcates the anterior-most developing brain region in bilaterian animals

• Verfasst von: Steinmetz, Patrick R. H. [VerfasserIn]
• Verfasst von: Guy, Keren [VerfasserIn]
• Verfasst von: Arendt, Detlev [VerfasserIn]
• Titel: Six3 demarcates the anterior-most developing brain region in bilaterian animals
• Verf.angabe: Patrick RH Steinmetz, Rolf Urbach, Nico Posnien, Joakim Eriksson, Roman P. Kostyuchenko, Carlo Brena, Keren Guy, Michael Akam, Gregor Bucher, Detlev Arendt
• Umfang: 9 S.
• Fussnoten: Gesehen am 31.05.2017
• Titel Quelle: Enthalten in: EvoDevo
• Jahr Quelle: 2010
• Band/Heft Quelle: 1(2010), 14, S. 1-9
• ISSN Quelle: 2041-9139
• DOI: doi:10.1186/2041-9139-1-14
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1559168838

Abstract

The heads of annelids (earthworms, polychaetes, and others) and arthropods (insects, myriapods, spiders, and others) and the arthropod-related onychophorans (velvet worms) show similar brain architecture and for this reason have long been considered homologous. However, this view is challenged by the 'new phylogeny' placing arthropods and annelids into distinct superphyla, Ecdysozoa and Lophotrochozoa, together with many other phyla lacking elaborate heads or brains. To compare the organisation of annelid and arthropod heads and brains at the molecular level, we investigated head regionalisation genes in various groups. Regionalisation genes subdivide developing animals into molecular regions and can be used to align head regions between remote animal phyla.