Dr. Conrad Helm


Research interests

Annelid evolution
Evolution of invertebrate organ systems
Development and evolution of invertebrate glial cells

Short CV

since 01/2018 Independent researcher at the Georg-August University Goettingen in the group "Animal Evolution and Biodiversity", financed by a personal research fellowship ("Rückkehrstipendium") from the german research foundation (DFG) (He 7224/2-1)
04/2017-12/2017 PostDoc at the Sars international centre for marine molecular biology, (University of Bergen) in the Hausen group – S11
04/2015-03/2017 Independent researcher at the Sars international centre for marine molecular biology, (University of Bergen) in the Hausen group – S11, financed by a personal research fellowship from the german research foundation (DFG) (He 7224/1-1)
05/2013-03/2015 Academic assistant in the lab of Prof. Dr. M. Schlegel (Molecular Evolution and Animal Systematics, University of Leipzig) and Prof. Dr. R. Rübsamen (General Zoology and Neurobiology, University of Leipzig)
05/2013 PhD thesis: "Integration of molecules and morphology reveals the phylogenetic position of Myzostomida" Grade: summa cum laude (supervised by Prof. Dr. M. Schlegel (Leipzig) and Prof. Dr. T. Bartolomaeus (Bonn))
2009-2013 PhD student at the University of Leipzig


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Selected publications

1. Helm C., Karl A., Beckers P., Kaul-Strehlow S., Ulbricht E., Kourtesis I., Kuhrt H., Hausen H., Bartolomaeus T., Reichenbach A. & Bleidorn C. (2017): Early evolution of radial glial cells in Bilateria. Proceedings of the Royal Society B 284: 20170743.
2. Helm C., Vöcking O., Kourtesis I. & Hausen H. (2016): Owenia fusiformis – a basally branching annelid suitable for studying ancestral features of annelid neural development. BMC Evolutionary Biology 16: 129.
3. Bleidorn C. & Helm C. (2016): Orbiniidae Hartmann, 1942. In: Handbook of Zoology Online, Publisher: De Gruyter, Editors: G. Purschke and W. Westheide.
4. Helm C. & Capa M. (2015): Comparative analyses of morphological characters in Sphaerodoridae and allies (Annelida) revealed by an integrative microscopical approach. Frontiers in Marine Science 1: 1-15.
5. Weidhase M., Bleidorn C., Beckers P. & Helm C. (2015): Myoanatomy and anterior muscle regeneration of the fireworm Eurythoe cf. complanata (Annelida: Amphinomidae). Journal of Morphology 277: 306-315.
6. Helm C., Krause A. & Bleidorn C. (2015): Immunohistochemical investigations of the development of Scoloplos armiger (“intertidalis clade”) indicate a paedomorphic origin of Proscoloplos cygnochaetus (Annelida, Orbiniidae). Invertebrate Biology 134: 214-230.
7. Bleidorn C., Helm C., Weigert A. & Aquado M.T. (2015): Annelida. In: Evolutionary Developmenal Biology of Invertebrates 2, 1. Edition, Chapter: 9, Publisher: Springer-Verlag Wien, Editors: Andreas Wanninger, pp.193-230.
8. Weigert A., Helm C., Meyer M., Nickel B., Arendt D., Hausdorf B., Santos S. R., Halanych K. M., Purschke G., Bleidorn C. & Struck T. H. (2014): Illuminating the base of the annelid tree using transcriptomics. Molecular Biology and Evolution, doi: 10.1093/molbev/msu080.
9. Helm C., Weigert A., Mayer G., Bleidorn C. (2013): Myoanatomy of Myzostoma cirriferum (Annelida, Myzostomida): Implications for the Evolution of the Myzostomid Body Plan. Journal of Morphology 274: 456–466.
10. Helm C., Schemel S., Bleidorn C. (2013): Temporal plasticity in annelid development - ontogeny of Phyllodoce groenlandica (Phyllodocidae, Annelida) reveals heterochronous patterns. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 320: 166-178.
11. Helm C., Bernhart S. H., Höner zu Siederdissen C., Nickel B., Bleidorn, C. (2012): Deep sequencing of small RNAs confirms an annelid affinity of Myzostomida. Molecular Phylogenetics and Evolution 64: 198–203.