Research groups
Publications
Doctoral thesis (PhD)
Academic article
- Anne-Christin Zakrzewski; Anne Weigert; Conrad Helm et al. (2014). Early divergence, broad distribution, and high diversity of animal chitin synthases. (external link)
- Conrad Helm; Anett Karl; Patrick Beckers et al. (2017). Early evolution of radial glial cells in Bilateria. (external link)
- Fatemeh Mazloumi Gavgani; Johanna Kraus; Layla Al-Shaer et al. (2025). Ectopic head regeneration after nervous system ablation in a sea anemone. (external link)
- Johanna Kraus; Henriette Busengdal; Yulia Kraus et al. (2024). Doublecortin-like kinase is required for cnidocyte development in Nematostella vectensis. (external link)
- Carmen Döring; Jasmin Gosda; Kristin Tessmar-Raible et al. (2013). Evolution of clitellate phaosomes from rhabdomeric photoreceptor cells of polychaetes - a study in the leech Helobdella robusta (Annelida, Sedentaria, Clitellata). (external link)
- Conrad Helm; Oliver Vöcking; Ioannis Kourtesis et al. (2016). Owenia fusiformis - A basally branching annelid suitable for studying ancestral features of annelid neural development. (external link)
- Oliver Vöcking; Ioannis Kourtesis; Harald Hausen (2015). Posterior eyespots in larval chitons have a molecular identity similar to anterior cerebral eyes in other bilaterians. (external link)
- Suman Kumar; Sharat Chandra Tumu; Conrad Helm et al. (2020). The development of early pioneer neurons in the annelid Malacoceros fuliginosus. (external link)
- Lisbeth Charlotte Olsen; Ioannis Or John Kourtesis; Henriette Busengdal et al. (2018). Evidence for a centrosome-attracting body like structure in germ-soma segregation during early development, in the urochordate Oikopleura dioica. (external link)
- Anne Weigert; Conrad Helm; Harald Hausen et al. (2013). Expression pattern of Piwi-like genes in adult Myzostoma cirriferum (Annelida). (external link)
- Anna Cosima Seybold; Suman Kumar; Sharat Chandra Tumu et al. (2024). Neurons with larval synaptic targets pioneer the later nervous system in the annelid Malacoceros fuliginosus. (external link)
- Oliver Vöcking; Ioannis Kourtesis; Sharat Chandra Tumu et al. (2017). Co-expression of xenopsin and rhabdomeric opsin in photoreceptors bearing microvilli and cilia. (external link)
- Ester M Ullrich-Luter; Sam Dupont; Enrique Arboleda et al. (2011). Unique system of photoreceptors in sea urchin tube feet. (external link)
- Jan Inge Øvrebø; Coen Campsteijn; Ioannis Kourtesis et al. (2015). Functional specialization of chordate cdk1 paralogs during oogenic meiosis. (external link)
- Harald Hausen; Clemens Döring; Suman Kumar et al. (2020). The visual pigment xenopsin is widespread in protostome eyes and impacts the view on eye evolution. (external link)
- Ekin Tilic; Harald Hausen; Thomas Bartolomaeus (2014). Chaetal arrangement and chaetogenesis of hooded hooks in Lumbrineris (Scoletoma) fragilis and Lumbrineris tetraura (Eunicida, Annelida). (external link)
- Mowgli Dandamudi; Harald Hausen; Timothy Peter Lynagh (2022). Comparative analysis defines a broader FMRFamide-gated sodium channel family and determinants of neuropeptide sensitivity. (external link)
- Oliver Vöcking; Lucas Leclère; Harald Hausen (2021). The rhodopsin-retinochrome system for retinal re-isomerization predates the origin of cephalopod eyes. (external link)
See a complete overview of publications in Cristin.
Selected Publications
Kumar S, Tumu SC, Helm C, Hausen H. (2020) The development of early pioneer neurons in the annelid Malacocerosfuliginosus. BMC Evol Biol, 20(1):117. doi:10.1186/s12862-020-01680-x.
Döring CC, Kumar S, Tumu SC, Kourtesis I, Hausen H. (2020) The visual pigment xenopsin is widespread in protostome eyes and impacts the view on eye evolution. eLife doi:10.7554/eLife.55193
Olsen LC, Kourtesis I, Busengdal H, Jensen MF, Hausen H, Chourrout D. (2018) Evidence for a centrosome-attracting body like structure in germ-soma segregation duringearly development, in the urochordate Oikopleura dioica. BMC Dev Biol. 18(1):4. doi: 10.1186/s12861-018-0165-5.
- Vöcking O, Kourtesis I, Tumu S C, Hausen H (2017). Co-expression of xenopsin and rhabdomeric opsin in photoreceptors bearing microvilli and cilia. eLife doi: 10.7554/eLife.23435
- 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 radialglial cells in Bilateria. Proc Biol Sci. 284(1859). pii: 20170743.doi: 10.1098/rspb.2017.0743.
- Helm C, Vöcking O, Kourtesis I and Hausen H (2016). Owenia fusiformis – a basally branching annelid suitable for studying ancestral features of annelid neural development. BMC Evol Biol, 16(1), 129. http://doi.org/10.1186/s12862-016-0690-4
- Vöcking O, Kourtesis I and Hausen H (2015). Posterior eyespots in larval chitons have a molecular identity similar to anterior cerebral eyes in other bilaterians. EvoDevo 6:40 DOI 10.1186/s13227-015-0036-0.
- Zakrzewski A-C, Weigert A, Helm C, Adamski M, Adamska M, Bleidorn C, Raible F and Hausen H (2014). Early divergence, broad distribution and high diversity of animal chitin synthases. Genome Biol Evol 6(2):316-325.
- Weigert A, Helm C, Hausen H, Zakrzewski A-C, Bleidorn C (2013). Expression pattern of Piwi-like genes in adult Myzostoma cirriferum (Annelida). Dev Genes Evol (doi:10.1007/s00427-013-0444-x).
- Zakrzewski A-C, Suh A, Lüter C. (2012). New insights into the larval development of Macandrevia cranium (Müller, 1776) (Brachiopoda: Rhynchonelliformea). Zoologischer Anzeiger - A Journal of Comparative Zoology. (251): 263-269.
- Ullrich-Lüter EM, Dupont S, Arbodela E, Hausen H, Arnone MI (2011). Unique system of photoreceptors in sea urchin tube feet. Proc Natl Acad Sci USA 108(20): 8367-8372.
Prior to arrival at the Sars Centre
- Arendt, D., Hausen & Purschke, G. (2009). The 'division of labour' model of eye evolution. Philosophical Transactions of The Royal Society B 364 (1531): 2809-2817.
- Jékely G., Colombelli, J., Hausen, H., Guy, K., Stelzer, E., Nédélec, F.& Arendt, D (2008). Mechanism of phototaxis in marine zooplankton. Nature 456(20): 396-400.
- Kieselbach, D. & Hausen, H. (2008). Chaetal Arrangement Provides No Support for a Close Relationship of Sabellidae and Sabellariidae (Annelida). Journal of Morphology 269(1): 104-117.
- Meyer, A., Bleidorn, C., Rouse, G.W., Hausen, H. (2008). Morphological and molecular data suggests a cosmopolitan distribution of the polychaete Proscoloplos cygnochaetus Day, 1954 (Annelida, Orbiniidae). Marine Biology 153(5): 879-889.
- Tessmar-Raible, K., Raible, F., Christodoulou, F., Guy, K., Rembold, M., Hausen, H. & Arendt, D. (2007). Conserved sensory-neurosecretory cell types in annelid and fish forebrain: insights into hypothalamus evolution.Cell 129(7): 1389-1400.
- Hausen, H (2007). Ultrastructure of presumptive light sensitive ciliary organs in larvae of Poecilochaetidae, Trochochaetidae, Spionidae, Magelonidae (Annelida) and its phylogenetic significance. Zoomorphology 126 (3): 185-201.
- Hoffmann, S. & Hausen, H. (2007). Chaetal arrangement in Orbiniidae (Annelida, Polychaeta) and its significance for systematics. Zoomorphology 126(4): 215-227.
- Purschke, G. & Hausen, H (2007). Lateral organs in sedentary polychaetes (Annelida) – Ultrastructure and phylogenetic significance of an insufficiently known sense organ. Acta Zoologica 88: 23-39.
- Hausen, H. & Bleidorn, C. (2006). Significance of chaetal arrangement for maldanid systematics (Annelida, Maldanidae). Scientia Marina 70S3: 75-79.
- Purschke, G., Arendt, D., Hausen, H. Müller, M.C.M. (2006). Photoreceptor cells and eyes in Annelida. Arthropod Structure and Development 35: 211-230.
- Hausen, H. (2005). Comparative structure of the epidermis in polychaetes (Annelida). In: T. Bartolomaeus & G. Purschke (eds.) Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia535/536: 25-35.
- Hausen, H. (2005). Chaetae and chaetogenesis in polychaetes (Annelida). In: T. Bartolomaeus & G. Purschke (eds.) Morphology, Molecules, Evolution and Phylogeny in Polychaeta and related Taxa. Hydrobiologia 535/536: 37-52.