Georg Mayer

Summary

Publications

  1. doi request reprint Selective neuronal staining in tardigrades and onychophorans provides insights into the evolution of segmental ganglia in panarthropods
    Georg Mayer
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Talstraße 33, D 04103 Leipzig, Germany
    BMC Evol Biol 13:230. 2013
  2. pmc Neural markers reveal a one-segmented head in tardigrades (water bears)
    Georg Mayer
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Leipzig, Germany
    PLoS ONE 8:e59090. 2013
  3. pmc Growth patterns in Onychophora (velvet worms): lack of a localised posterior proliferation zone
    Georg Mayer
    Institute of Biology II, Animal Evolution and Development, University of Leipzig, Talstrasse 33, D 04103 Leipzig, Germany
    BMC Evol Biol 10:339. 2010
  4. pmc A revision of brain composition in Onychophora (velvet worms) suggests that the tritocerebrum evolved in arthropods
    Georg Mayer
    Institute of Biology II, Animal Evolution and Development, University of Leipzig, Talstrasse 33, D 04103 Leipzig, Germany
    BMC Evol Biol 10:255. 2010
  5. doi request reprint Neural development in Onychophora (velvet worms) suggests a step-wise evolution of segmentation in the nervous system of Panarthropoda
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria 3010, Australia
    Dev Biol 335:263-75. 2009
  6. pmc Velvet worm development links myriapods with chelicerates
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Melbourne, Victoria 3010, Australia
    Proc Biol Sci 276:3571-9. 2009
  7. doi request reprint Distribution of serotonin in the trunk of Metaperipatus blainvillei (Onychophora, Peripatopsidae): implications for the evolution of the nervous system in Arthropoda
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria 3010, Australia
    J Comp Neurol 507:1196-208. 2008
  8. pmc Immunolocalization of serotonin in Onychophora argues against segmental ganglia being an ancestral feature of arthropods
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria, Australia
    BMC Evol Biol 7:118. 2007
  9. doi request reprint Extensive duplication events account for multiple control regions and pseudo-genes in the mitochondrial genome of the velvet worm Metaperipatus inae (Onychophora, Peripatopsidae)
    Anke Braband
    Institute of Biology, Comparative Zoology, Humboldt Universitat zu Berlin, Berlin, Germany
    Mol Phylogenet Evol 57:293-300. 2010
  10. doi request reprint When are cellular oscillators sufficient for sequential segmentation?
    Rebecca H Chisholm
    Department of Mathematics and Statistics, University of Melbourne, Victoria 3010, Australia
    J Theor Biol 279:150-60. 2011

Collaborators

Detail Information

Publications21

  1. doi request reprint Selective neuronal staining in tardigrades and onychophorans provides insights into the evolution of segmental ganglia in panarthropods
    Georg Mayer
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Talstraße 33, D 04103 Leipzig, Germany
    BMC Evol Biol 13:230. 2013
    ....
  2. pmc Neural markers reveal a one-segmented head in tardigrades (water bears)
    Georg Mayer
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Leipzig, Germany
    PLoS ONE 8:e59090. 2013
    ..To clarify this, we applied a variety of histochemical and immunocytochemical markers to specimens of the tardigrade Macrobiotus cf. harmsworthi and the onychophoran Euperipatoides rowelli...
  3. pmc Growth patterns in Onychophora (velvet worms): lack of a localised posterior proliferation zone
    Georg Mayer
    Institute of Biology II, Animal Evolution and Development, University of Leipzig, Talstrasse 33, D 04103 Leipzig, Germany
    BMC Evol Biol 10:339. 2010
    ..To determine whether such a localised posterior proliferation zone is an ancestral feature of Panarthropoda (Onychophora + Tardigrada + Arthropoda), we examined cell division patterns in embryos of Onychophora...
  4. pmc A revision of brain composition in Onychophora (velvet worms) suggests that the tritocerebrum evolved in arthropods
    Georg Mayer
    Institute of Biology II, Animal Evolution and Development, University of Leipzig, Talstrasse 33, D 04103 Leipzig, Germany
    BMC Evol Biol 10:255. 2010
    ..However, the segmental origins of their brain neuropils and the number of cephalic appendages innervated by the brain--key issues in clarifying brain composition in the last common ancestor of Onychophora and Arthropoda--remain unclear...
  5. doi request reprint Neural development in Onychophora (velvet worms) suggests a step-wise evolution of segmentation in the nervous system of Panarthropoda
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria 3010, Australia
    Dev Biol 335:263-75. 2009
    ..Our data best support the hypothesis that the ancestral panarthropod had only a partially segmented nervous system, which evolved progressively into the segmental chain of ganglia seen in extant tardigrades and arthropods...
  6. pmc Velvet worm development links myriapods with chelicerates
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Melbourne, Victoria 3010, Australia
    Proc Biol Sci 276:3571-9. 2009
    ..Our findings, thus provide, to our knowledge, first morphological/embryological support for the monophyly of the Paradoxopoda and suggest that the mandible might have evolved twice within the arthropods...
  7. doi request reprint Distribution of serotonin in the trunk of Metaperipatus blainvillei (Onychophora, Peripatopsidae): implications for the evolution of the nervous system in Arthropoda
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria 3010, Australia
    J Comp Neurol 507:1196-208. 2008
    ..This finding implies that the "rope ladder-like" nervous system may have arisen independently in Panarthropoda and Annelida and does not represent a synapomorphy of these groups...
  8. pmc Immunolocalization of serotonin in Onychophora argues against segmental ganglia being an ancestral feature of arthropods
    Georg Mayer
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria, Australia
    BMC Evol Biol 7:118. 2007
    ....
  9. doi request reprint Extensive duplication events account for multiple control regions and pseudo-genes in the mitochondrial genome of the velvet worm Metaperipatus inae (Onychophora, Peripatopsidae)
    Anke Braband
    Institute of Biology, Comparative Zoology, Humboldt Universitat zu Berlin, Berlin, Germany
    Mol Phylogenet Evol 57:293-300. 2010
    ....
  10. doi request reprint When are cellular oscillators sufficient for sequential segmentation?
    Rebecca H Chisholm
    Department of Mathematics and Statistics, University of Melbourne, Victoria 3010, Australia
    J Theor Biol 279:150-60. 2011
    ..Furthermore, the model predicts segment deletions when there is an interruption in cell division, just as seen in heat shock experiments, as well as the growth and final shrinkage of the presomitic mesoderm during somitogenesis...
  11. doi request reprint The mitochondrial genome of the onychophoran Opisthopatus cinctipes (Peripatopsidae) reflects the ancestral mitochondrial gene arrangement of Panarthropoda and Ecdysozoa
    Anke Braband
    Institute of Biology, Comparative Zoology, Humboldt Universitat zu Berlin, Berlin, Germany
    Mol Phylogenet Evol 57:285-92. 2010
    ..biolleyi is less suitable for phylogenetic analyses of Ecdysozoa using mitochondrial genomic data than the peripatopsid O. cinctipes...
  12. doi request reprint Myoanatomy of Myzostoma cirriferum (Annelida, Myzostomida): implications for the evolution of the myzostomid body plan
    Conrad Helm
    Molecular Evolution and Systematics of Animals, Institute of Biology, University of Leipzig, Talstraße 33, D 04103 Leipzig, Germany
    J Morphol 274:456-66. 2013
    ..cirriferum arose secondarily in this species. Based on our data, we provide a scenario on the rearrangements of muscle fibers that might have taken place in the lineage leading to this species...
  13. pmc Unexplored character diversity in onychophora (velvet worms): A comparative study of three peripatid species
    Ivo de Sena Oliveira
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Leipzig, Germany
    PLoS ONE 7:e51220. 2012
    ....
  14. pmc Cryptic speciation in Brazilian Epiperipatus (Onychophora: Peripatidae) reveals an underestimated diversity among the peripatid velvet worms
    Ivo S Oliveira
    Institute of Biology Animal Evolution and Development, University of Leipzig, Leipzig, Germany
    PLoS ONE 6:e19973. 2011
    ..We therefore used molecular approaches, in addition to morphological methods, to explore the diversity of Epiperipatus from the Minas Gerais State of Brazil...
  15. doi request reprint Apodemes associated with limbs support serial homology of claws and jaws in Onychophora (velvet worms)
    Ivo de Sena Oliveira
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Talstraße 33, D 04103, Leipzig, Germany
    J Morphol 274:1180-90. 2013
    ....
  16. doi request reprint Opsins in onychophora (velvet worms) suggest a single origin and subsequent diversification of visual pigments in arthropods
    Lars Hering
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Leipzig, Germany
    Mol Biol Evol 29:3451-8. 2012
    ..We conclude that the diversification of visual pigments and color vision evolved in arthropods, along with the evolution of compound eyes-one of the most sophisticated visual systems known...
  17. doi request reprint Comparative anatomy of slime glands in onychophora (velvet worms)
    Alexander Baer
    Animal Evolution and Development, Institute of Biology, University of Leipzig, Talstrasse 33, D 04103 Leipzig, Germany
    J Morphol 273:1079-88. 2012
    ..However, the direction of evolutionary changes in duct composition cannot be determined unambiguously due to current uncertainty regarding the phylogenetic relationships of Onychophora...
  18. doi request reprint The origins of the arthropod nervous system: insights from the Onychophora
    Paul M Whitington
    Department of Anatomy and Cell Biology, University of Melbourne, Victoria 3010, Australia
    Arthropod Struct Dev 40:193-209. 2011
    ....
  19. pmc A living fossil tale of Pangaean biogeography
    Jerome Murienne
    Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA, CNRS, Universite Paul Sabatier, ENFA, UMR 5174 EDB Laboratoire Evolution et Diversité Biologique, Universite de Toulouse, 118 route de Narbonne, Toulouse 31062, France, Department of Botany and Zoology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa, Landcare Research, Auckland Mail Centre, Private Bag 92170, Auckland 1142, New Zealand, School of Biological Sciences, University of Auckland, Auckland, New Zealand, Allan Wilson Centre for Molecular Ecology and Evolution, Auckland, New Zealand, Animal Evolution and Development, Institute of Biology, University of Leipzig, Talstraße 33, Leipzig 04103, Germany
    Proc Biol Sci 281:20132648. 2014
    ..These results corroborate a growing body of evidence from palaeontology, palaeogeography and palaeoclimatic modelling depicting ancient biogeographic regionalization over the continuous landmass of Pangaea. ..
  20. ncbi request reprint The complete mitochondrial genome of the onychophoran Epiperipatus biolleyi reveals a unique transfer RNA set and provides further support for the ecdysozoa hypothesis
    Lars Podsiadlowski
    Institute of Biology, Freie Universitat Berlin, Berlin, Germany
    Mol Biol Evol 25:42-51. 2008
    ....
  21. ncbi request reprint Ultrastructure of mesoderm in embryos of Opisthopatus roseus (Onychophora, Peripatopsidae): revision of the "long germ band" hypothesis for Opisthopatus
    Georg Mayer
    Animal Systematics and Evolution, Institute of Biology Zoology, Freie Universität of Berlin, D 14195 Berlin, Germany
    J Morphol 263:60-70. 2005
    ..cinctipes. From this survey, no evidence in support of a "long germ band" hypothesis in Opisthopatus was found. Instead, the embryogenesis in representatives of Opisthopatus is more similar to that in other onychophorans than expected...