Bleidorn, Christoph

[["dc.bibliographiccitation.artnumber","36"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Frontiers in Zoology"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Helm, Conrad"],["dc.contributor.author","Beckers, Patrick"],["dc.contributor.author","Bartolomaeus, Thomas"],["dc.contributor.author","Drukewitz, Stephan H"],["dc.contributor.author","Kourtesis, Ioannis"],["dc.contributor.author","Weigert, Anne"],["dc.contributor.author","Purschke, Günter"],["dc.contributor.author","Worsaae, Katrine"],["dc.contributor.author","Struck, Torsten H"],["dc.contributor.author","Bleidorn, Christoph"],["dc.date.accessioned","2019-07-09T11:45:58Z"],["dc.date.available","2019-07-09T11:45:58Z"],["dc.date.issued","2018"],["dc.description.abstract","Abstract Background A median, segmented, annelid nerve cord has repeatedly been compared to the arthropod and vertebrate nerve cords and became the most used textbook representation of the annelid nervous system. Recent phylogenomic analyses, however, challenge the hypothesis that a subepidermal rope-ladder-like ventral nerve cord (VNC) composed of a paired serial chain of ganglia and somata-free connectives represents either a plesiomorphic or a typical condition in annelids. Results Using a comparative approach by combining phylogenomic analyses with morphological methods (immunohistochemistry and CLSM, histology and TEM), we compiled a comprehensive dataset to reconstruct the evolution of the annelid VNC. Our phylogenomic analyses generally support previous topologies. However, the so far hard-to-place Apistobranchidae and Psammodrilidae are now incorporated among the basally branching annelids with high support. Based on this topology we reconstruct an intraepidermal VNC as the ancestral state in Annelida. Thus, a subepidermal ladder-like nerve cord clearly represents a derived condition. Conclusions Based on the presented data, a ladder-like appearance of the ventral nerve cord evolved repeatedly, and independently of the transition from an intraepidermal to a subepidermal cord during annelid evolution. Our investigations thereby propose an alternative set of neuroanatomical characteristics for the last common ancestor of Annelida or perhaps even Spiralia."],["dc.identifier.doi","10.1186/s12983-018-0280-y"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15357"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59348"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","BioMed Central"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Convergent evolution of the ladder-like ventral nerve cord in Annelida"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","196"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","BMC Evolutionary Biology"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Weidhase, Michael"],["dc.contributor.author","Beckers, Patrick"],["dc.contributor.author","Bleidorn, Christoph"],["dc.contributor.author","Aguado, M. Teresa"],["dc.date.accessioned","2018-03-13T08:42:04Z"],["dc.date.available","2018-03-13T08:42:04Z"],["dc.date.issued","2016"],["dc.description.abstract","Syllids are a species rich annelid family possessing remarkable regenerative ability, which is not only the response after traumatic injury, but also a key step during the life cycle of several syllid taxa. In these animals the posterior part of the body becomes an epitoke and is later detached as a distinct unit named stolon. Such a sexual reproductive mode is named schizogamy or stolonization. The prostomium and the proventricle, a modified foregut structure, have been proposed to have a control function during this process, though the concrete mechanisms behind it have never been elucidated."],["dc.identifier.doi","10.1186/s12862-016-0770-5"],["dc.identifier.pmid","27716025"],["dc.identifier.scopus","2-s2.0-84992316396"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12972"],["dc.identifier.url","http://www.scopus.com/inward/record.url?eid=2-s2.0-84992316396&partnerID=MN8TOARS"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.eissn","1471-2148"],["dc.title","On the role of the proventricle region in reproduction and regeneration in Typosyllis antoni (Annelida: Syllidae)"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]