Abstract：
:Vertebrate pigment cells are derived from neural crest, a tissue that also forms most of the peripheral nervous system and a variety of ectomesenchymal cell types. Formation of pigment cells from multipotential neural crest cells involves a number of common developmental processes. Pigment cells must be specified; their migration, proliferation, and survival must be controlled and they must differentiate to the final pigment cell type. We previously reported a large set of embryonic mutations that affect pigment cell development from neural crest (R. N. Kelsh et al., 1996, Development 123, 369-389). Based on distinctions in pigment cell appearance between mutants, we proposed hypotheses as to the process of pigment cell development affected by each mutation. Here we describe the cloning and expression of an early zebrafish melanoblast marker, dopachrome tautomerase. We used this marker to test predictions about melanoblast number and pattern in mutant embryos, including embryos homozygous for mutations in the colourless, sparse, touchdown, sunbleached, punkt, blurred, fade out, weiss, sandy, and albino genes. We showed that in homozygous mutants for all loci except colourless and sparse, melanoblast number and pattern are normal. colourless mutants have a pronounced decrease in melanoblast cell number from the earliest stages and also show poor melanoblast differentiation and migration. Although sparse mutants show normal numbers of melanoblasts initially, their number is reduced later. Furthermore, their distribution indicates a defect in melanoblast dispersal. These observations permit us to refine our model of the genetic control of melanophore development in zebrafish embryos.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Kelsh RN,Schmid B,Eisen JSdoi
10.1006/dbio.2000.9840subject
Has Abstractpub_date
2000-09-15 00:00:00pages
277-93issue
2eissn
0012-1606issn
1095-564Xpii
S0012-1606(00)99840-3journal_volume
225pub_type
杂志文章abstract：:The Toll signaling pathway functions in several Drosophila processes, including dorsal-ventral pattern formation and the immune response. Here, we demonstrate that this pathway is required in the epidermis for proper muscle development. Previously, we showed that the zygotic Toll protein is necessary for normal muscle...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1998.8915
更新日期：1998-07-01 00:00:00
abstract：:The ability to express exogenous reporter genes in intact, externally developing embryos, such as Xenopus, is a powerful tool for characterizing the activity of cis-regulatory gene elements during development. Although methods exist for generating transgenic Xenopus lines, more simplified methods for use with F0 anima...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2014.11.010
更新日期：2015-02-01 00:00:00
abstract：:Expression of constitutively active Src protein tyrosine kinase in Xenopus oocytes has been shown to accelerate oocyte maturation suggesting that Src may be involved in meiotic progression. However, meiotic regulation of endogenous Src kinase in oocytes has not been investigated in detail. To address this problem, we ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.10.018
更新日期：2005-02-15 00:00:00
abstract：:Initial studies suggested that spatial organization of the putative polar body contractile ring was determined by the peripheral aster in Spisula [Biol. Bull. 205 (2003) 192]. Here we report detailed supporting observations, including testing of aster and ring function with inhibitors. The metaphase peripheral aster w...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.01.033
更新日期：2004-05-15 00:00:00
abstract：:Vulval epithelial tubes invaginate through concerted cell migration, ring formation, stacking of rings and intra-ring cell fusion in the nematodes Caenorhabditis elegans, Oscheius tipulae and Pristionchus pacificus. The number of rings forming the invaginations is invariantly seven, six, and eight, respectively. We hy...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.10.010
更新日期：2008-01-01 00:00:00
abstract：:Growth and Differentiation Factor 1 (GDF-1) has been implicated in left-right patterning of the mouse embryo but has no other known function. Here, we demonstrate a genetic interaction between Gdf1 and Nodal during anterior axis development. Gdf1-/-;Nodal+/- mutants displayed several abnormalities that were not presen...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.02.002
更新日期：2006-05-15 00:00:00
abstract：:The regulation of cell cycle rate is essential for the correct timing of proliferation and differentiation during development. Changes to cell cycle rate can have profound effects on the size, shape and cell types of a developing organ. We previously identified a zebrafish mutant ceylon (cey) that has a severe reducti...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2012.05.024
更新日期：2012-08-15 00:00:00
abstract：:The prostate undergoes branching morphogenesis dependent on paracrine interactions between the prostatic epithelium and the urogenital mesenchyme. To identify cell-surface molecules that function in this process, monoclonal antibodies raised against epithelial cell-surface antigens were screened for antigen expression...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0223
更新日期：2001-05-01 00:00:00
abstract：:Electroporation-based assays were used to test whether the myogenic regulatory factor (MRF) of Ciona intestinalis (CiMRF) interferes with endogenous developmental programs, and to evaluate the importance of its unusual N-terminus for muscle development. We found that CiMRF suppresses both notochord and endoderm develo...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2018.10.010
更新日期：2019-04-15 00:00:00
abstract：:The homebox gene Hlxb9, encoding Hb9, exhibits a dual expression profile during pancreatic development. The early expression in the dorsal and ventral pancreatic epithelium is transient and spans from embryonic day (e) 8 to e9-e10, whereas the later expression is confined to differentiating beta-cells as they appear. ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0440
更新日期：2001-12-01 00:00:00
abstract：:Caveolin-1 (Cav-1) is the principal component of plasma membrane caveolae that negatively regulates a number of cellular signaling events including canonical Wnt signaling. Activation of the Wnt/beta-catenin pathway is essential for dorsal organizer formation and specification in early vertebrate embryos, but it remai...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.04.033
更新日期：2010-08-01 00:00:00
abstract：:In many organisms early embryogenesis is characterised by a period refractory to transcription. In Caenorhabditis elegans, the one-cell embryo is transcriptionally inactive, but at around eight-cell stage transcription is activated in the somatic lineage. This model suggests that histone tail modifications associated ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2011.04.010
更新日期：2011-07-15 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：:This study tested the proposition that Na/K-ATPase activity could be involved in the morphogenetic aspects of mouse blastocyst formation by facilitating the localization of certain organelles to apposed borders, the production of nascent blastocoele fluid, and cavitation. It was assumed that such Na/K-ATPase activity ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(84)90290-2
更新日期：1984-10-01 00:00:00
abstract：:During metamorphosis of insect epithelial monolayers, cells die, divide, and rearrange. In Drosophila undifferentiated diploid cells destined to form the adult cuticle of each abdominal segment segregate early in development from the surrounding polyploid larval epithelial cells of that segment as eight groups of dipl...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2018.03.017
更新日期：2018-06-01 00:00:00
abstract：:Metamorphosis in Drosophila results from a hierarchy of ecdysone-induced gene expression initiated at the end of the third larval instar. A now classical model of this hierarchy was proposed based on observations of the activity of polytene chromosome "puffs" which distinguished "early" puffs as those directly induced...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9358
更新日期：1999-09-01 00:00:00
abstract：:The developing chick limb bud contains several stage-specific populations of muscle colony-forming (MCF) cells. The cell lineage relationships of these populations are not completely understood, but previous studies have suggested that there may be at least two myogenic precursor populations present in the limb bud. T...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(84)90237-9
更新日期：1984-12-01 00:00:00
abstract：:The level of early histone mRNA in Strongylocentrotus purpuratus changes abruptly at 6 hr of development, increasing an average of 10-fold by 9-10.5 hr and then decreasing over 2-fold by 13.5-15 hr. These changes occur when the late embryonic mRNA is still a very minor component of histone gene transcription. The exac...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(83)90340-8
更新日期：1983-07-01 00:00:00
abstract：:There is a natural curiosity about how organisms give rise to offspring like themselves through a series of reproducible developmental events and how, once mature, these offspring mate and continue the process giving rise the next generation. In the mid-1800s investigators started using gametes and embryos to explore ...
journal_title：Developmental biology
pub_type： 历史文章,杂志文章
doi：10.1016/j.ydbio.2011.06.021
更新日期：2011-10-15 00:00:00
abstract：:Trypsin-like activity is secreted from eggs of many species at fertilization, and this activity is believed to be critical for the block to polyspermy. Here we show that a cortical granule serine protease of sea urchins is the major and perhaps only protease family member important for fertilization. Zymography assays...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9299
更新日期：1999-07-01 00:00:00
abstract：:We have identified cDNA clones encoding a testis-specific poly(A) polymerase, termed TPAP, a candidate molecule responsible for cytoplasmic polyadenylation of preexisting mRNAs in male haploid germ cells. The TPAP gene was most abundantly expressed coincident with the additional elongation of mRNA poly(A) tails in rou...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9894
更新日期：2000-12-01 00:00:00
abstract：:Bone development is dependent on the functionality of three essential cell types: chondrocytes, osteoclasts and osteoblasts. If any of these cell types is dysfunctional, a developmental bone phenotype can result. The bone disease osteopetrosis is caused by osteoclast dysfunction or impaired osteoclastogenesis, leading...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.06.018
更新日期：2010-08-15 00:00:00
abstract：:John W. Saunders, Jr. made seminal discoveries unveiling how chick embryos develop their limbs. He discovered the apical ectodermal ridge (AER), the zone of polarizing activity (ZPA), and the domains of interdigital cell death within the developing limb and determined their function through experimental analysis. Thes...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2016.11.005
更新日期：2017-09-15 00:00:00
abstract：:Inverse gradients of transcriptional repressors antagonize the transcriptional effector response to morphogens. However, the role of such inverse regulation might not manifest solely from lack of repressors. Sonic hedgehog (Shh) patterns the forebrain by being expressed ventrally; however, absence of antagonizing Gli3...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2019.03.011
更新日期：2019-06-01 00:00:00
abstract：:The germinal vesicle (GV) of starfish oocytes contains a factor which is required to drive the cytoplasmic cycle of the meiotic division. Biochemical investigation of this factor has been difficult due to the small quantities of obtainable GV materials. To overcome this, we have developed a mass-isolation procedure fo...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(92)90187-l
更新日期：1992-06-01 00:00:00
abstract：:During anuran metamorphosis, larval-type myotubes in both trunk and tail are removed by apoptosis, and only trunk muscles are replaced by newly formed adult-type myotubes. In the present study, we clarified the regulatory mechanisms for specific developmental fates of adult and larval muscles. Two distinct (adult and ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2002.0800
更新日期：2002-11-01 00:00:00
abstract：:A simple assay has been developed to measure cGMP-specific phosphodiesterase (cGPD) activity in crude soluble extracts of amoebae of Dictyostelium discoideum. When amoebae of different wild-type strains were starved on buffered agar, all strains exhibited an 8- to 12-fold increase in cGMP-specific hydrolyzing activity...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(84)90026-5
更新日期：1984-05-01 00:00:00
abstract：:It has long been hypothesized that in fishes the contents of cortical granules are involved in the hardening of egg envelope following fertilization. We previously purified the egg envelope hardening initiation factor from the exudates released from activated medaka (Oryzias latipes) eggs and tentatively termed this p...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2012.09.016
更新日期：2012-12-15 00:00:00
abstract：:FOG-2 is a multi-zinc finger protein that binds the transcriptional activator GATA4 and modulates GATA4-mediated regulation of target genes during heart development. Our previous work has demonstrated that the Nucleosome Remodeling and Deacetylase (NuRD) complex physically interacts with FOG-2 and is necessary for FOG...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2014.08.030
更新日期：2014-11-01 00:00:00
abstract：:Vertebrate morphology has been evolutionarily modified by natural and/or artificial selection. The morphological variation of goldfish is a representative example. In particular, the twin-tail strain of ornamental goldfish shows highly diverged anal and caudal fin morphology: bifurcated anal and caudal fins. Recent mo...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2016.11.022
更新日期：2017-07-15 00:00:00
