Rhombomere development in a reptilian embryo

@article{Pritz1999RhombomereDI,
  title={Rhombomere development in a reptilian embryo},
  author={Michael B Pritz},
  journal={Journal of Comparative Neurology},
  year={1999},
  volume={411}
}
  • M. Pritz
  • Published 23 August 1999
  • Biology, Medicine
  • Journal of Comparative Neurology
Rhombomere development was investigated in a reptile, Alligator mississippiensis, using a variety of methodologies: cytoarchitecture (cresyl violet), histochemistry (peanut agglutinin), immunocytochemistry (antibodies to acetylated tubulin, vimentin, calretinin, and acetylcholinesterase), and external and internal morphology of wholemount embryos. Rhombomere boundaries form sequentially until 8 rhombomeres are present at stage 8. From stage 11 onwards, rhombomere borders fade. When present… 
Early Diencephalon Development in Alligator
  • M. Pritz
  • Medicine, Biology
    Brain, Behavior and Evolution
  • 2007
TLDR
Detailed analyses in reptiles (Alligator), birds (chick), and mammals (humans), suggest that the initial pattern of early diencephalon development in amniotes is similar.
Rhombomere boundaries and hindbrain patterning in the zebrafish.
TLDR
Testing a possible patterning role of boundaries, and to establish a genetic hierarchy between boundary genes by carrying out knockdowns of boundary-specific genes, found that wntl mediates a lateral inhibition of boundary fate by regulating neurogenesis in hindbrain segments.
Cell Proliferation during Early Hindbrain Development in Alligator
  • M. Pritz
  • Biology, Medicine
    Brain, Behavior and Evolution
  • 2003
TLDR
Observations in Alligator confirm the findings in other species that rhombomeres are centers of cell proliferation and are most likely common to hindbrain development in all gnathostomes.
Cell proliferation in the developing and adult hindbrain and midbrain of trout and medaka (teleosts): a segmental approach.
TLDR
The trout brain appears a suitable model for morphogenetic studies because it allows more gradual survey of the changes throughout development, and the segmental appearance of the brainstem is blurred earlier in the medaka than in the trout.
Crocodilian Forebrain: Evolution and Development.
  • M. Pritz
  • Biology, Medicine
    Integrative and comparative biology
  • 2015
TLDR
While crocodilians, as well as other sauropsids, demonstrate several features of neural circuitry in common with mammals, certain striking differences in organization of the forebrain are present, and embryos of Alligator misissippiensis were examined to address these differences.
Regionalization of the Shark Hindbrain: A Survey of an Ancestral Organization
TLDR
Three developmental periods are characterized that will serve as a framework to compare the development of different neuronal systems and may represent a suitable tool for comparing the absolute chronology of development among vertebrates.
Forebrain and midbrain fiber tract formation during early development in Alligator embryos
  • M. Pritz
  • Biology, Medicine
    Brain Research
  • 2010
The relationship between fiber tract formation and transverse and longitudinal borders of the diencephalon was investigated in Alligator embryos beginning when this structure was a single unit and
Reelin expression during embryonic brain development in Crocodylus niloticus
TLDR
Observations confirm that reelin is prominently expressed in many structures of the embryonic brain in all amniotes and further emphasize the unique amplification of reelin expression in mammalian Cajal‐Retzius cells and its putative role in the evolution of the cerebral cortex.
FGF3 and FGF8 mediate a rhombomere 4 signaling activity in the zebrafish hindbrain.
TLDR
It is shown that rhombomere 4 (r4) functions as an early-differentiating signaling center in the zebrafish hindbrain and a crucial role for FGF-mediated inter-rhombomeres signaling in promoting early hindbrain patterning is demonstrated.
Calcium binding protein expression in the optic tectum of Alligator during development
The onset and distribution of the calcium binding proteins, calretinin, calbindin, and parvalbumin, were examined in the optic tectum of Alligator mississipiensis embryos between Stages 18 and 26–28.
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