Access the full text.
Sign up today, get DeepDyve free for 14 days.
van Straaten van Straaten, Hekking Hekking, Wiertz‐Hoessels Wiertz‐Hoessels, Thors Thors, Drukker Drukker (1988)
Effect of the notochord on the differentiation of the floorplate area in the neural tube of the chick embryoAnat. Embryol., 177
R. Keller (1991)
Chapter 5 Early Embryonic Development of Xenopus laevisMethods in Cell Biology, 36
C. Kintner, D. Melton (1987)
Expression of Xenopus N-CAM RNA in ectoderm is an early response to neural induction.Development, 99 3
Keller Keller, Tibbetts Tibbetts (1989)
Mediolateral cell intercalation is a property of the dorsal, axial mesoderm of Xenopus laevisDev. Biol., 131
(1991)
Patterns of cell motility, cell interactions, and mechanism during convergent extension in Xenopus
R. Keller (1976)
Vital dye mapping of the gastrula and neurula of Xenopus laevis: I. Prospective areas and morphogenetic movements of the superficial layerDevelopmental Biology, 51
Paul Wilson, R. Keller (1991)
Cell rearrangement during gastrulation of Xenopus: direct observation of cultured explants.Development, 112 1
Shohei Mttani, Harumasa Okamoto (1991)
Inductive differentiation of two neural lineages reconstituted in a microculture system from Xenopus early gastrula cells.Development, 112 1
R. Keller, M. Danilchik (1988)
Regional expression, pattern and timing of convergence and extension during gastrulation of Xenopus laevis.Development, 103 1
(1992)
Neural induction in Xenopus embryos: Induction of neuronal differentiation
R. Keller (1980)
The cellular basis of epiboly: an SEM study of deep-cell rearrangement during gastrulation in Xenopus laevis.Journal of embryology and experimental morphology, 60
R. Keller, J. Shih, Paul Wilson (1991)
Cell Motility, Control and Function of Convergence and Extension during Gastrulation in Xenopus
J. Shih, Ray Keller (1992)
Patterns of cell motility in the organizer and dorsal mesoderm of Xenopus laevis.Development, 116 4
(1955)
Embryogenesis: Progressive Differentiation, Amphibians
Schroeder Schroeder (1970)
Neurulation in Xenopus laevisAn analysis and model based upon light and electron microscopy. J. Embryol. Exp. Morph., 23
C. Sharpe, J. Gurdon (1990)
The induction of anterior and posterior neural genes in Xenopus laevis.Development, 109 4
H. Straaten, J. Hekking, J. Beursgens, Els Terwindt-Rouwenhorst, J. Drukker (1989)
Effect of the notochord on proliferation and differentiation in the neural tube of the chick embryo.Development, 107 4
Thomas Jessell, P. Bovolenta, M. Placzek, Marc Tessier-Lavigne, Jane Dodd (1989)
Polarity and patterning in the neural tube: the origin and function of the floor plate.Ciba Foundation symposium, 144
P. Nieuwkoop, J. Faber (1958)
Normal Table of Xenopus Laevis (Daudin)Copeia, 1958
R. Gimlich, Jochen Braun (1985)
Improved fluorescent compounds for tracing cell lineage.Developmental biology, 109 2
Induction of dorsal morphogenesis and tissue differentiation by the dorsal epithelium of the Xenopus gastrula
Keller Keller, Schoenwolf Schoenwolf (1977)
An SEM study of cellular morphology, contact, and arrangement, as related to gastrulation in Xenopus laevisWilhelm Roux Arch., 181
J. Dixon, C. Kintner (1989)
Cellular contacts required for neural induction in Xenopus embryos: evidence for two signals.Development, 106 4
(1992)
Planar induction of position-specific homeobox genes in the neurectoderm of Xenopus Zueuis
R. Akers, C. Phillips, N. Wessells (1986)
Expression of an epidermal antigen used to study tissue induction in the early Xenopus laevis embryo.Science, 231 4738
R. Keller, P. Tibbetts (1989)
Mediolateral cell intercalation in the dorsal, axial mesoderm of Xenopus laevis.Developmental biology, 131 2
Antone Jacobson, Antone Jacobson, Richard Gordon, Richard Gordon (1976)
Changes in the shape of the developing vertebrate nervous system analyzed experimentally, mathematically and by computer simulation.The Journal of experimental zoology, 197 2
T. Yamada, T. Yamada, M. Placzek, H. Tanaka, J. Dodd, T. Jessell, T. Jessell (1991)
Control of cell pattern in the developing nervous system: Polarizing activity of the floor plate and notochordCell, 64
J. Moury, Antone Jacobson (1989)
Neural fold formation at newly created boundaries between neural plate and epidermis in the axolotl.Developmental biology, 133 1
A. Sater, R. Steinhardt, R. Keller (1993)
Induction of neuronal differentiation by planar signals in Xenopus embryosDevelopmental Dynamics, 197
R. Keller (1978)
Time‐lapse cinemicrographic analysis of superficial cell behavior during and prior to gastrulation in Xenopus laevisJournal of Morphology, 157
M. Servetnick, R. Grainger (1991)
Homeogenetic neural induction in Xenopus.Developmental biology, 147 1
R. Savage, C. Phillips (1989)
Signals from the dorsal blastopore lip region during gastrulation bias the ectoderm toward a nonepidermal pathway of differentiation in Xenopus laevis.Developmental biology, 133 1
A. Jacobson, A. Sater (1988)
Features of embryonic induction.Development, 104 3
Keller Keller, Danilchik Danilchik, Gimlich Gimlich, Shih Shih (1985b)
The function of convergent extension during gastrulation of Xenopus laevisJ. Embryol. Exp. Morph., 89
R. Keller, J. Shih, A. Sater, Cecelia Moreno (1992)
Planar induction of convergence and extension of the neural plate by the organizer of XenopusDevelopmental Dynamics, 193
R. Keller (1981)
An experimental analysis of the role of bottle cells and the deep marginal zone in gastrulation of Xenopus laevis.The Journal of experimental zoology, 216 1
Keller Keller (1975)
Vital dye mapping of the gastrula and neurula of Xenopus laevisI. Prospective areas and morphogenetic movements of the superficial layer. Dev. Biol., 42
A. Jacobson, G. Oster, G. Odell, L. Cheng (1986)
Neurulation and the cortical tractor model for epithelial folding.Journal of embryology and experimental morphology, 96
(1992)
The mechanism of mediolateral intercalation during Xenopus gastrulation: Directed protrusive activity and cell alignment
P. Nieuwkoop (1985)
Inductive interactions in early amphibian development and their general nature.Journal of embryology and experimental morphology, 89 Suppl
R. Warga, C. Kimmel (1990)
Cell movements during epiboly and gastrulation in zebrafish.Development, 108 4
Thomas Schroeder (1970)
Neurulation in Xenopus laevis. An analysis and model based upon light and electron microscopy.Journal of embryology and experimental morphology, 23 2
Geo Smith, R. Bensley, L. Stone (1938)
Embryonic Development and InductionThe Yale Journal of Biology and Medicine, 11
Jodi Smith, G. Schoenwolf (1989)
Notochordal induction of cell wedging in the chick neural plate and its role in neural tube formation.The Journal of experimental zoology, 250 1
I. Álvarez, G. Schoenwolf (1991)
Patterns of neurepithelial cell rearrangement during avian neurulation are determined prior to notochordal inductive interactions.Developmental biology, 143 1
(1991)
The effects of the dorsal blastopore lip and the involuted dorsal mesoderm on neural induction in Xenopus
H. Spemann (1938)
Embryonic development and induction
(1981)
Morphogenesis of the neural plate and tube
Holtfreter Holtfreter (1933)
Die totale Exogastrulation eine Selbstablosung Ektoderm von EntomesodermArch. Entwicklungsmech. Org., 129
C. London, R. Akers, C. Phillips (1988)
Expression of Epi 1, an epidermis-specific marker in Xenopus laevis embryos, is specified prior to gastrulation.Developmental biology, 129 2
G. Eagleson, W. Harris (1990)
Mapping of the presumptive brain regions in the neural plate of Xenopus laevis.Journal of neurobiology, 21 3
R. Keller (1975)
Vital Dye Mapping of the Gastrula and Neurula of Xenopus LaevisDevelopmental Biology, 42
M. Placzek, M. Tessier-Lavigne, Toshiya Yamada, T. Jessell, J. Dodd (1990)
Mesodermal control of neural cell identity: floor plate induction by the notochord.Science, 250 4983
Paul Wilson, George Oster, Ray Keller (1989)
Cell rearrangement and segmentation in Xenopus: direct observation of cultured explants.Development, 105 1
(1989)
area in the neural tube of the chick embryo. Anat. Embryol
G. Schoenwolf, Ignacio Alvarez (1989)
Roles of neuroepithelial cell rearrangement and division in shaping of the avian neural plate.Development, 106 3
Marcus, Jacobson (1981)
Clonal organization of the central nervous system of the frog. III. Clones stemming from individual blastomeres of the 128-, 256-, and 512- cell stages, 3
Ray Keller (1986)
The cellular basis of amphibian gastrulation.Developmental biology, 2
G. Schoenwolf (1985)
Shaping and bending of the avian neuroepithelium: morphometric analyses.Developmental biology, 109 1
P. Wigmore, N. Holder (1985)
Regeneration from isolated half limbs in the upper arm of the axolotl.Journal of embryology and experimental morphology, 89
(1942)
The mechanics of amphibian gastrulation . I . Gastrulation - producing interactions between various regions of an anuran egg ( Hyla regilia )
There is great interest in the patterning and morphogenesis of the vertebrate nervous system, but the morphogenetic movements involved in early neural development and their underlying cellular mechanisms are poorly understood. This paper describes the cellular basis of the early neural morphogenesis of Xenopus laevis. The results have important implications for neural induction. Mapping the fate map of the midneurula (Eagleson and Harris: J. Neurobiol. 21:427–440, 1990) back to the early gastrula with time‐lapse video recording demonstrates that the prospective hindbrain and spinal cord are initially very wide and very short, and thus at the beginning of gastrulation all their precursor cells lie within a few cell diameters of the inducing mesoderm. In the midgastrula, the prospective hindbrain and spinal cord undergo very strong convergence and extension movements in two phases: In the first phase they primarily undergo thinning in the radial direction and lengthening (extension) in the animal‐vegetal direction, and the second phase is characterized primarily by mediolateral narrowing (convergence) and anterior‐posterior lengthening (extension). These movements also occur in sandwich explants of the gastrula, thus demonstrating the local automomy of the forces producing them. Tracing cell movements with fluorescein dextran‐labeled cells in embryos or explants shows that the initial thinning and extension occurs by radial intercalation of deep cells to form fewer layers of greater area, all of which is expressed as increased length. The subsequent convergence and extension occurs by mediolateral intercalation of deep cells to form a longer, narrower array. These results establish that a similar if not identical sequence of radial and mediolateral cell intercalations underlie convergence and extension of the neural and the mesoderm tissues (Wilson and Keller: Development, 112:289–300, 1991). Moreover, these results establish that radial and mediolateral intercalation are the principal neural cell behaviors induced by the planar signals emanating from the dorsal involuting marginal zone (the Spemann organizer) in the early gastrula (Keller et al: Develop. Dynamics, 193: 218–234, 1992). Radial and mediolateral intercalation are induced among the 5 to 7 rows of cells comprising the prospective hindbrain and spinal cord, thus producing the massive convergence and extension movements that narrow and elongate these regions of the nervous system in the late gastrula. A more general significance of these results is that neural induction is best analyzed and understood in terms of the dynamics of the morphogenetic processes involved. © 1992 Wiley‐Liss, Inc.
Developmental Dynamics – Wiley
Published: Mar 1, 1992
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.