Abstract:
:We describe the lineage and morphogenesis of neural plate cells in the ascidian, Ciona intestinalis, from reconstructed cell maps of embryos at 12-min intervals during and after neurulation, between 31 and 61% of embryonic development. Neurulation commences in a posterior to anterior wave following in the wake of the ninth cleavage, when all cells, except possibly four, are in their 10th generation. The neural plate then comprises 76 cells, in up to four posterior rows each of eight vegetal-hemisphere cells, and eight anterior rows each of six animal-hemisphere cells. Two cells are lost from the neural plate to the muscle cell line during neurulation and four cells are gained from ectoderm outside the plate. All cells become wedge-shaped. Simple, stereotyped positional changes transform cells from lateral locations in the plate to posterior locations in the tube; bilateral partners shear their midline positions to form the keel, and ectodermal cells zipper up dorsally to form the capstone, of a tube which is four cells in cross section posteriorly, but more complex anteriorly. Neither cell death nor migration occur during neurulation. Divisions become asynchronous and the cell-cycle extends; 170 10th- to 12th-generation cells exist by the time the neural tube becomes completely internalized. Generally, only one further division is required to complete the lineage analysis, two at the most. Neural plate cell divisions were invariant using our observational methods, and their lineage is compared with that from recent studies of H. Nishida (1987, Dev. Biol. 121, 526-541).
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Nicol D,Meinertzhagen IAdoi
10.1016/0012-1606(88)90364-8subject
Has Abstractpub_date
1988-12-01 00:00:00pages
737-66issue
2eissn
0012-1606issn
1095-564Xpii
0012-1606(88)90364-8journal_volume
130pub_type
杂志文章abstract::To examine whether the 200-kDa neurofilament protein (200K NFP) is involved in mechanically stabilizing axons, we studied the developmental appearance of immunoreactivity to nonphosphorylated and phosphorylated 200K NFP at the neuromuscular junction. Polyinnervated rat muscle fibers become singly innervated during the...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(88)90422-8
更新日期:1988-11-01 00:00:00
abstract::Enhancers are flexible in terms of their location and orientation relative to the genes they regulate. However, little is known about whether the flexibility can be applied in every combination of enhancers and genes. Enhancer detection with transposable elements is a powerful method to identify enhancers in the genom...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2012.12.012
更新日期:2013-03-01 00:00:00
abstract::The trkA gene encodes the tyrosine kinase receptor that transduces the NGF signal. We have used a defective herpes simplex virus-1 (HSV-1) vector containing a full-length rat trkA sequence (pHSVtrkA) to express NGF receptors in primary cultures of neonatal nodose neurons and embryonic spinal motor neurons which are no...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1994.1131
更新日期:1994-05-01 00:00:00
abstract::We defined the cellular mechanisms for genesis, migration, and differentiation of the initial population of olfactory bulb (OB) interneurons. This cohort of early generated cells, many of which become postmitotic on embryonic day (E) 14.5, differentiates into a wide range of mature OB interneurons by postnatal day (P)...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2006.05.009
更新日期:2006-09-15 00:00:00
abstract::Hedgehog (Hh) signaling is thought to occur in primary cilia, but the molecular basis of Gli2 and Gli3 activation by Hh signaling in cilia is unknown. Similarly, how ciliary gene mutations result in reduced Gli3 processing that generates a repressor is also not clear. Here we show that Hh signaling inhibits Gli2 and G...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2017.06.035
更新日期:2017-09-01 00:00:00
abstract::Polychaete annelids and arthropods are both segmented protostome invertebrates. To investigate whether the segmented body plan of these two phyla share a common molecular ground pattern, we report the developmental expression of orthologues of the arthropod segment polarity genes engrailed (en), hedgehog (hh), and win...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2005.10.025
更新日期:2006-01-01 00:00:00
abstract::The t haplotypes are variant forms of the proximal portion of chromosome 17 in the mouse. The t haplotypes alter spermatogenesis and many also contain lethal factors. Although the lethal factors vary between t haplotypes, all t haplotypes have the same effect on sperm, that of altering sperm function in fertilization....
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1993.1002
更新日期:1993-01-01 00:00:00
abstract::The sensory neurons of the Drosophila wing differentiate during the initial stages of metamorphosis, appearing in the imaginal wing disc as it everts and flattens. These identifiable neurons arise in a stereotyped sequence, and lay down a specific pattern of axon bundles which travel proximally to the CNS. In several ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(85)90044-2
更新日期:1985-04-01 00:00:00
abstract::In the Drosophila ventral nerve cord, the three pairs of Capability neuropeptide-expressing Va neurons are exclusively found in the second, third and fourth abdominal segments (A2-A4). To address the underlying mechanisms behind such segment-specific cell specification, we followed the developmental specification of t...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2011.02.015
更新日期:2011-05-01 00:00:00
abstract::The extracorporeal vasculature of the colonial ascidian Botryllus schlosseri plays a key role in several biological processes: transporting blood, angiogenesis, regeneration, self-nonself recognition, and parabiosis. The vasculature also interconnects all individuals in a colony and is composed of a single layer of ec...
journal_title:Developmental biology
pub_type: 杂志文章,评审
doi:10.1016/j.ydbio.2018.10.013
更新日期:2019-04-15 00:00:00
abstract::During endochondral ossification, the differentiation of proliferating into hypertrophic chondrocytes is a key step determining the pace of bone formation and the future length of the skeletal elements. A variety of transcription factors are expressed at the onset of hypertrophy coordinating the expression of differen...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2019.09.012
更新日期:2020-01-01 00:00:00
abstract::Integrins are expressed on the surface of some vertebrate eggs where they are thought to have a role in fertilization. The objective of this study is to determine if integrins are expressed on sea urchin eggs. The alphaB and betaC subunits were cloned using the homology polymerase chain reaction. Monoclonal and polycl...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2000.9910
更新日期:2000-11-15 00:00:00
abstract::Proper development of a multicellular organism relies on well-coordinated regulation of cell fate specification, cell proliferation and cell differentiation. The C. elegans postembryonic mesoderm provides a useful system for uncovering factors involved in these processes and for further dissecting their regulatory rel...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2017.06.011
更新日期:2017-09-01 00:00:00
abstract::Growth factor signaling regulates tissue-tissue interactions to control organogenesis and tissue homeostasis. Specifically, transforming growth factor beta (TGFβ) signaling plays a crucial role in the development of cranial neural crest (CNC) cell-derived bone, and loss of Tgfbr2 in CNC cells results in craniofacial s...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2015.02.010
更新日期:2015-04-15 00:00:00
abstract::Clotting is critical in limiting hemolymph loss and initiating wound healing in insects as in vertebrates. It is also an important immune defense, quickly forming a secondary barrier to infection, immobilizing bacteria and thereby promoting their killing. However, hemolymph clotting is one of the least understood immu...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2006.03.019
更新日期:2006-07-01 00:00:00
abstract::The task of the visual system is to translate light into neuronal encoded information. This translation of photons into neuronal signals is achieved by photoreceptor neurons (PRs), specialized sensory neurons, located in the eye. Upon perception of light the PRs will send a signal to target neurons, which represent a ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2011.07.006
更新日期:2011-10-01 00:00:00
abstract::The cardiac neural crest contains ectomesenchymal and neural anlagen that are necessary for normal heart development. It is not known whether other regions of the neural crest are capable of supporting normal heart development. In the experiments reported herein, quail donor embryos provided cardiac, trunk, or mesence...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(89)90112-7
更新日期:1989-08-01 00:00:00
abstract::The vertebrate pituitary gland is a key endocrine control organ that contains six distinct hormone secreting cell types. In this study, we analyzed the role of direct cell-to-cell Delta-Notch signaling in zebrafish anterior pituitary cell type specification. We demonstrate that initial formation of the anterior pituit...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2008.04.019
更新日期:2008-07-15 00:00:00
abstract::Previous studies from this laboratory (M. Bronner-Fraser (1985). J. Cell Biol. 101, 610) have demonstrated that an antibody to a cell surface receptor complex caused alterations in avian neural crest cell migration. Here, these observations are extended to examine the distribution and persistency of injected antibody,...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(86)90320-9
更新日期:1986-10-01 00:00:00
abstract::Cyclin J is a cyclin family member that appears to have evolved before the metazoan radiation. Its evolutionary conservation argues for an important role but functional characterizations of Cyclin J have remained very limited. In Drosophila, Cyclin J is expressed only in females. Using transgenic Drosophila lines expr...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2009.06.042
更新日期:2009-09-15 00:00:00
abstract::The morphology of skeletal tissues formed in each of the branchial arches of higher vertebrates is unique. In addition to these structures, which are derived from the neural crest, the crest-derived connective tissues and mesodermal muscles also form different patterns in each of the branchial arches. The objective of...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(83)90318-4
更新日期:1983-03-01 00:00:00
abstract::The formation of an anterior-posterior (AP) gradient of microtubules in Drosophila oocytes is essential for specification of the AP axis. Proper microtubule organization in the oocyte requires the function of serine/threonine kinase Par-1. The N1S isoform of Par-1 is enriched at the posterior cortex of the oocyte from...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2008.12.031
更新日期:2009-03-15 00:00:00
abstract::The contribution of cranial neural crest cells to the development and patterning of cranial muscles in amphibians was investigated in the phylogenetically basal and morphologically generalized frog, Bombina orientalis. Experimental methods included fluorescent marking of premigratory cranial neural crest and extirpati...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2001.0377
更新日期:2001-09-15 00:00:00
abstract::We report periodic movements during erection of Dictyostelium discoideum (Dd) sorocarps. Our observations lead to the working hypothesis that Dd sorocarp erection occurs by two superimposed processes: one periodic, with a modal period of 6 1/2 min, and one continuous. We tentatively identify the periodic process with ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(76)90237-2
更新日期:1976-09-01 00:00:00
abstract::The organization of the embryonic neural plate requires coordination of multiple signal transduction pathways, including fibroblast growth factors (FGFs), bone morphogenetic proteins (BMPs), and WNTs. Many studies have suggested that a critical component of this process is the patterning of posterior neural tissues by...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2009.06.019
更新日期:2009-09-01 00:00:00
abstract::Myf5 is a key myogenic determination factor, specifically present at sites of myogenesis. Surprisingly, during mouse development, this gene is also transcribed in restricted areas of the central nervous system, although the Myf5 protein is not detectable. We have investigated the regulation of Myf5 expression in the c...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2008.11.031
更新日期:2009-03-01 00:00:00
abstract::Chicken talpid(3) mutant embryos have a wide range of Hedgehog-signalling related defects and it is now known that the talpid(3) gene product encodes a novel protein essential for Hedgehog signalling which is required for both activator and repressor functions of Gli transcription factors (Davey, M.G., Paton, I.R., Yi...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2006.08.017
更新日期:2007-01-01 00:00:00
abstract::Sea urchin eggs secrete a serine protease activity, CGSP1, at fertilization that is essential for the block to polyspermy. Several targets of this proteolytic activity on the plasma membrane were identified here using a cell surface biotinylation approach. Amino acid microsequencing of one of these proteins led to the...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2004.03.043
更新日期:2004-08-01 00:00:00
abstract::In medusae of the hydrozoan Cytaeis uchidae, oocyte meiotic maturation and spawning occur as a consequence of dark-light transition. In this study, we investigated the mechanism underlying the initiation of meiotic maturation using in vitro (isolated oocytes from ovaries) and in vivo (ovarian oocytes in medusae) syste...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2006.06.034
更新日期:2006-10-01 00:00:00
abstract::Fetomodulin (FM) was previously shown to be a surface marker protein of parietal endoderm by in vitro differentiation of F9 embryonal carcinoma cells and by immunohistochemistry of in vivo embryos. BALB/3T3 and sarcoma S180 cells of the mouse were also shown to possess a protein which was indistinguishable from FM by ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(90)90058-q
更新日期:1990-07-01 00:00:00