Abstract：
:This work has identified the enzymes involved in the activation and conjugation of the ubiquitin-like protein NED-8 in Caenorhabditis elegans. A C. elegans conjugating enzyme, UBC-12, is highly specific in its ability to utilize NED-8 as a substrate. Immunostaining shows that NED-8 is conjugated in vivo to a major target protein with a conjugate size of 90 kDa. While the amount of this conjugate is developmentally regulated with reduced levels in the larval stages, the mRNA encoding C. elegans UBC-12 is constitutively produced throughout development, as is NED-8 itself. The importance of the NED-8 conjugating system in C. elegans was determined by RNA interference (RNAi) assays using double-stranded RNA encoding NED-8, UBC-12, or the NED-8 activating enzyme component ULA-1. The progeny of both ned-8 and ubc-12 RNAi-treated hermaphrodites either arrested during embryonic development or underwent abnormal postembryonic development. The effect on postembryonic development was pleiotropic, the most frequent gross abnormality being vulval eversion during the L4 stage. Individuals with an everted vulva either burst at the L4 to adult molt or gave rise to adults incapable of egg laying. Additionally, both ned-8 and ubc-12 RNAi induced a striking abnormality in the alae, structures produced by the lateral hypodermal seam cells in the adult nematode. Affected alae were patchy and frequently diverged around a central space. Vulval defects were also produced by RNAi directed at C. elegans ula-1. This is the first demonstration of a requirement for NED-8 conjugation in metazoan development.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Jones D,Candido EPdoi
10.1006/dbio.2000.9847subject
Has Abstractpub_date
2000-10-01 00:00:00pages
152-65issue
1eissn
0012-1606issn
1095-564Xpii
S0012-1606(00)99847-6journal_volume
226pub_type
杂志文章abstract：:In Xenopus gastrulation, the involuting mesodermal and non-involuting ectodermal cells remain separated from each other, undergoing convergent extension. Here, we show that Eph-ephrin signaling is crucial for the tissue separation and convergence during gastrulation. The loss of EphA4 function results in aberrant gast...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.12.012
更新日期：2011-02-15 00:00:00
abstract：:The left-right body axis is coordinately aligned with the orthogonal dorsoventral and anterioposterior body axes. The developmental mechanisms that regulate axis coordination are unknown. Here it is shown that the cardiac left-right orientation in zebrafish (Danio rerio) is randomized in notochord-defective no tail an...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1996.0148
更新日期：1996-07-10 00:00:00
abstract：:The CRISPR/Cas9 system is a rapid, simple, and often extremely efficient gene editing method. This method has been used in a variety of organisms and cell types over the past several years. However, using this technology for generating gene-edited animals involves a number of obstacles. One such obstacle is mosaicism,...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2018.10.008
更新日期：2019-01-15 00:00:00
abstract：:Neurons and glia are produced in stereotyped patterns after neuroblast cell division during development of the Drosophila central nervous system. The first cell division of thoracic neuroblast 6-4 (NB6-4T) is asymmetric, giving rise to a glial precursor cell and a neuronal precursor cell. In contrast, abdominal NB6-4 ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9727
更新日期：2000-06-15 00:00:00
abstract：:We describe the characterization and a functional analysis in Xenopus development of RalB, a small G protein. RalB RNA and protein are detectable during oogenesis and early development, but the gene is expressed only weakly in adult tissues. The RalB transcripts are processed by poly(A) extension during oocyte maturat...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9254
更新日期：1999-05-15 00:00:00
abstract：:The tail ascidian larval peripheral nervous system is made up of epidermal sensory neurons distributed more or less regularly in ventral and dorsal midlines. Their formation occurs in two-steps: the ventral and dorsal midlines are induced as neurogenic territories by Fgf9/16/20 and Admp respectively. The Delta2/Notch ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2015.11.009
更新日期：2016-01-01 00:00:00
abstract：:Morphogenesis is a fascinating but complex and incompletely understood developmental process. The sensory lateral line system consists of only a few hundred cells and is experimentally accessible making it an excellent model system to interrogate the cellular and molecular mechanisms underlying segmental morphogenesis...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.10.022
更新日期：2011-01-15 00:00:00
abstract：:We have previously shown that the adenosine analog 5-aminoimidazole-4-carboxamide-1-beta-d-ribofuranoside (AICAR), an activator of AMP-activated protein kinase (AMPK), stimulates an increase in AMPK activity and induces meiotic resumption in mouse oocytes [Downs, S.M., Hudson, E.R., Hardie, D.G., 2002. A potential rol...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2005.11.039
更新日期：2006-03-15 00:00:00
abstract：:The C-X-C motif ligand 14 (CXCL14) is a recently discovered chemokine that is highly conserved in vertebrates and expressed in various embryonic and adult tissues. CXCL14 signaling has been implicated to function as an antiangiogenic and anticancer agent in adults. However, its function during development is unknown. ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2017.01.008
更新日期：2017-03-01 00:00:00
abstract：:Quantification of GFP reporter gene expression at single cell level in living sea urchin embryos can now be accomplished by a new method of confocal laser scanning microscopy (CLSM). Eggs injected with a tissue-specific GFP reporter DNA construct were grown to gastrula stage and their fluorescence recorded as a series...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.06.016
更新日期：2006-11-15 00:00:00
abstract：:Previous experiments have demonstrated that in the septo-hippocampal system choline acetyltransferase (ChAT) is induced by nerve growth factor (NGF) (Gnahn et al. (1983) Dev. Brain Res. 9, 45-52) and that hippocampal NGF and mRNANGF levels are correlated with the density of cholinergic innervation (Korsching et al. (1...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(87)90235-1
更新日期：1987-04-01 00:00:00
abstract：:Syndecan, a cell surface proteoglycan, binds multiple extracellular ligands, and is developmentally regulated in epithelial and mesenchymal tissues. The branching morphogenesis of embryonic lung is dependent on epithelial-mesenchymal interactions and, based on studies with inhibitors, on proteoglycan synthesis. To ass...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(91)90286-c
更新日期：1991-10-01 00:00:00
abstract：:Ephrins and semaphorins regulate a wide variety of developmental processes, including axon guidance and cell migration. We have studied the roles of the ephrin EFN-4 and the semaphorin MAB-20 in patterning cell-cell contacts among the cells that give rise to the ray sensory organs of Caenorhabditis elegans. In wild-ty...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/s0012-1606(02)00129-x
更新日期：2003-04-15 00:00:00
abstract：:Cleft palate is one of the most common craniofacial congenital defects in humans. It is associated with multiple genetic and environmental risk factors, including mutations in the genes encoding signaling molecules in the sonic hedgehog (Shh) pathway, which are risk factors for cleft palate in both humans and mice. Ho...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2018.07.003
更新日期：2018-09-01 00:00:00
abstract：:In Drosophila, wing hairs are aligned in a distally oriented, parallel array. The frizzled pathway determines proximal-distal cell polarity in the wing; however, in frizzled pathway mutants, wing hairs remain parallel. How wing hairs align has not been determined. We have demonstrated a novel role for the septate junc...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.07.040
更新日期：2004-11-15 00:00:00
abstract：:Little is known about the biochemical changes underlying the morphological differentiation of the sea urchin egg during oogenesis. Because of this and the essential role of gamete recognition in fertilization, we studied the developmental expression of the recently identified egg surface receptor for sperm during ooge...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1994.1233
更新日期：1994-09-01 00:00:00
abstract：:In the marine bivalve Hiatella flaccida, full-grown oocytes in ovaries are arrested at the first prophase (prophase-I) of meiosis, whereas spawned oocytes have reinitiated meiosis from prophase-I and are again arrested at the first metaphase (metaphase-I). The neurohormone serotonin (5-hydroxytryptamine, 5-HT) was abl...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1995.1298
更新日期：1995-10-01 00:00:00
abstract：:In warm-blooded vertebrates it is generally accepted that after early stages of development new neurons are not added to the retina. Contrary to this belief, we show here that hatched chickens have a zone of proliferating cells at the peripheral margin of the retina, similar to that of fish and amphibians. We found th...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9640
更新日期：2000-04-15 00:00:00
abstract：:The iris sphincter muscle consists of striated muscle fibers in the adult chicken. The ontogenetic development of this muscle has been studied by immunocytochemistry, from Embryonic Day 7 to the time of hatching. The time course of expression of specific markers of either smooth or striated muscle, i.e., smooth and sk...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1254
更新日期：1993-10-01 00:00:00
abstract：:Prestalk cells are found in the anterior 15% of slugs of Dictyostelium discoideum and prespore cells are found in the remaining posterior portions. Neutral red staining as well as immunostaining with antisera prepared against spores or a spore-coat protein has indicated that there are cells in the posterior region whi...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(85)90318-5
更新日期：1985-02-01 00:00:00
abstract：:Early spermatids contain roughly 1000-fold more TATA-binding protein (TBP) mRNA than do somatic cells. The appearance of TBP-overexpressing spermatids in the developing testis is accompanied by a large increase in whole-organ levels of total RNA and of poly(A)+ RNA per cell. Whereas somatic cells initiate transcriptio...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1997.8514
更新日期：1997-04-01 00:00:00
abstract：:Mammalian sperm-egg adhesion occurs when sperm bind to the zona pellucida of the egg. In this study with guinea pig gametes, we have asked if sperm can initiate binding to the zona before and after the acrosome reaction and if the sperm surface protein PH-20 is involved in the binding at these two stages. Sperm bindin...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(87)90191-6
更新日期：1987-06-01 00:00:00
abstract：:Gr16 (chromosome 2, 6.9 cM) is a dominant, grey egg mutation of the domestic silkmoth, Bombyx mori, which produces an opaque instead of a translucent chorion. To determine the underlying cause of this defect, we examined the effects of the mutation on chorion ultrastructure, protein accumulation, and biosynthesis patt...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1112
更新日期：1993-05-01 00:00:00
abstract：:The aim of this study was to evaluate the role segmentation plays in the determination of neuronal identity in the hindbrain. We focused on two specific sets of hindbrain neurons, namely, the vestibulospinal and vestibulo-ocular neurons, which comprise distinct groups that can be identified and distinguished by virtue...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1998.8986
更新日期：1998-10-01 00:00:00
abstract：:Regulation of gene expression during early embryonic development in the rabbit was investigated by quantitative assay of firefly luciferase activity obtained by microinjection of three plasmid constructs using the regulatory region of polyomavirus promoter (PrPyV) with two different enhancer sequences (wild type or mu...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1994.1188
更新日期：1994-07-01 00:00:00
abstract：:Kidney development is a complex, little understood process based on inductive interactions and intricate epithelial and mesenchymal morphogenesis. Here, we report the use of subtractive hybridization to clone cDNAs expressed in early nephrogenesis. cDNA made from E14.5 mouse kidney was hybridized with adult mouse live...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1995.1139
更新日期：1995-05-01 00:00:00
abstract：:Developmental boundaries ensure that cells fated to participate in a particular structure are brought together or maintained at the appropriate locale within developing embryos. Parasegment grooves mark the position of boundaries that separate every segment of the Drosophila embryo into anterior and posterior compartm...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.04.026
更新日期：2008-09-15 00:00:00
abstract：:The Drosophila abnormal wing discs (awd) gene encodes the subunit of a protein that has nucleoside diphosphate kinase (NDP kinase) activity. Null mutations of the awd gene cause lethality after puparium formation. Larvae homozygous for such mutations have small imaginal discs, lymph glands, and brain lobes. Neither th...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1996.0184
更新日期：1996-08-01 00:00:00
abstract：:Aurora A is a mitotic kinase essential for cell proliferation. In mice, ablation of Aurora A results in mitotic arrest and pre-implantation lethality, preventing studies at later stages of development. Here we report the effects of Aurora A ablation on embryo patterning at early post-implantation stages. Inactivation ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2012.08.010
更新日期：2012-11-01 00:00:00
abstract：:Microtubule organization during the novel cell division of ameiotic microsporocytes was examined using indirect immunofluorescence microscopy. A recessive mutation of the maize gene Ameiotic causes the replacement of meiosis I with a synchronized mitotic division (Palmer, R. G. (1971). Chromosoma 35, 233-246). All ide...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(92)90063-m
更新日期：1992-11-01 00:00:00
