Abstract:
:Population data suggest that many parasitic protozoa (e.g. Trypanosoma, Leishmania, Entamoeba and Giardia) reproduce clonally, but this hypothesis has been highly controversial for Plasmodium falciparum. Although reproduction is predominantly clonal in the enteric bacteria Escherichia coli and Salmonella, the level of recombination affecting short (< 1 kb) regions of the chromosome is sufficient such that many genes are obviously mosaics of different ancestries. Transposable insertion sequences in E. coli are examples of selfish DNA whose short-term population dynamics are determined mainly by transposition and horizontal transmission among strains balanced against the regulation of transposition as a function of copy number, and negative effects on fitness. Occasional advantageous effects of transposable elements have also been documented.
journal_name
Curr Opin Genet Devjournal_title
Current opinion in genetics & developmentauthors
Hartl DLdoi
10.1016/s0959-437x(05)80119-4subject
Has Abstractpub_date
1992-12-01 00:00:00pages
937-42issue
6eissn
0959-437Xissn
1879-0380pii
S0959-437X(05)80119-4journal_volume
2pub_type
杂志文章,评审abstract::Several advances have been made in our understanding of the control of the growth and patterning of embryonic limbs. Development of the vertebrate limb is dependent on reciprocal interactions between the ectoderm and mesoderm that regulate the structure and function of the apical ectodermal ridge. One key component of...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章
doi:10.1016/s0959-437x(00)00101-5
更新日期:2000-08-01 00:00:00
abstract::Eukaryotic messenger RNA utilization is a tightly controlled process. Control of translation is exerted at several levels, but the predominant step is ribosome binding, which is rate limiting for translation of most mRNAs. There appear to be several alternative modes by which ribosomes bind to the mRNA and initiate tr...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(05)80059-0
更新日期:1994-04-01 00:00:00
abstract::DNA methylation and chromatin modification are two global mechanisms that regulate gene expression. Recent studies provide insight into the mechanism of transcriptional silencing by a methyl-CpG binding protein, MeCP2. MeCP2 is shown to interact with the Sin3/histone deacetylase co-repressor complex. Thus, this intera...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(99)80024-0
更新日期:1999-04-01 00:00:00
abstract::New structural studies of RNA polymerase II (Pol II) complexes mark the beginning of a detailed mechanistic analysis of the eukaryotic mRNA transcription cycle. Crystallographic models of the complete Pol II, together with new biochemical and electron microscopic data, give insights into transcription initiation. The ...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2004.01.003
更新日期:2004-04-01 00:00:00
abstract::The digital reconstruction of the embryogenesis of model organisms from 3D+time data is revolutionizing practices in quantitative and integrative Developmental Biology. A manual and fully supervised image analysis of the massive complex data acquired with new microscopy technologies is no longer an option and automate...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2011.08.001
更新日期:2011-10-01 00:00:00
abstract::To control changes in shape during development, the molecular regulatory networks have to interact with the mechanical, structural components of the individual cells, in particular the cytoskeleton and the cell wall. A widely accepted hypothesis proposes that molecular regulation interferes with wall synthesis and sti...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2018.04.001
更新日期:2018-08-01 00:00:00
abstract::After fertilization, mouse embryos go through preimplantation development to give rise to blastocyst. Two key molecular events, zygotic genome activation (ZGA) and the first cell lineage specification, are essential for the process. Recent advances in low-input epigenomics profiling techniques allow the analysis of th...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2020.05.015
更新日期:2020-10-01 00:00:00
abstract::Human pluripotent stem cells derived from embryos (human Embryonic Stem Cells or hESCs) or generated by direct reprogramming of somatic cells (human Induced Pluripotent Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell type...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2017.07.004
更新日期:2017-10-01 00:00:00
abstract::Human epilepsy is a common and heterogeneous condition in which genetics play an important etiological role. We begin by reviewing the past history of epilepsy genetics, a field that has traditionally included studies of pedigrees with epilepsy caused by defects in ion channels and neurotransmitters. We highlight impo...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2011.01.005
更新日期:2011-06-01 00:00:00
abstract::In recent years, the classical approaches of experimental embryology have been used in combination with more modern techniques to investigate aspects of neurogenesis. This combination has advanced our knowledge of several areas of neuronal development, including the lineages of neuronal precursors, the segmentation of...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(05)80073-5
更新日期:1991-08-01 00:00:00
abstract::Recent studies have supported the hypothesis that the high heritability of schizophrenia reflects a combination of relatively common alleles of small effect and some rare alleles with relatively large effects. Genome-wide association studies have identified at least one common allele of small effect at ZNF804a, which ...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2009.02.008
更新日期:2009-06-01 00:00:00
abstract::The processes by which the canonical protein synthesis machinery is modified by environmental stresses to allow healthy cells to respond to external conditions to maintain homeostasis, are frequently hijacked by tumour cells to enhance their survival. Two major stress response pathways that play a major role in this r...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2017.10.006
更新日期:2018-02-01 00:00:00
abstract::Recent studies have uncovered a bifunctional role of the diffusible axon guidance molecules netrin-1 and UNC-6 in that they attract some axons and steer others away simultaneously. Homology screens have extended the semaphorin and collapsin family to include at least 20 members, in both secreted and membrane-bound for...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(96)80069-4
更新日期:1996-08-01 00:00:00
abstract::Recent studies in invertebrates have provided important mechanistic insights into several general aspects of muscle development. Two new genes have been identified that are involved in muscle fusion in Drosophila and a novel maternal component was shown to be responsible for myogenic determination in an ascidian. In a...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(00)00214-8
更新日期:2001-08-01 00:00:00
abstract::The formation of new blood vessels through the process of angiogenesis is critical in vascular development and homeostasis. Aberrant angiogenesis leads to a variety of diseases, such as ischemia and cancer. Recent studies have revealed important roles for miRNAs in regulating endothelial cell (EC) function, especially...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2009.04.002
更新日期:2009-06-01 00:00:00
abstract::The eukaryotic nucleus is a highly compartmentalized and dynamic environment. Chromosome territories are arranged nonrandomly within the nucleus and numerous studies have indicated that a gene's position in the nucleus can impact its transcriptional activity. Here, we focus on recent advances in our understanding of t...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2009.02.007
更新日期:2009-04-01 00:00:00
abstract::The past year has been a spectacular one for Drosophila research. The sequencing and annotation of the Drosophila melanogaster genome has allowed a comprehensive analysis of the first three eukaryotes to be sequenced-yeast, worm and fly-including an analysis of the fly's influences as a model for the study of human di...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(00)00140-4
更新日期:2000-12-01 00:00:00
abstract::Microarray technologies enable genome-scale expression measurements. Already proved to be of value for the functional analysis of individual genes and biological processes, the application of expression profiling to disease gene discovery is now growing in importance and practicality. ...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(00)00187-8
更新日期:2001-06-01 00:00:00
abstract::Hox proteins regulate specific sets of target genes to give rise to morphological distinctions along the anterior-posterior body axis of metazoans. Though they have high developmental specificity, Hox proteins have low DNA binding specificity, so how they select the appropriate target genes has remained enigmatic. The...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2005.06.009
更新日期:2005-08-01 00:00:00
abstract::Eukaryotic organisms have the remarkable ability to inherit states of gene activity without altering the underlying DNA sequence. This epigenetic inheritance can persist over thousands of years, providing an alternative to genetic mutations as a substrate for natural selection. Epigenetic inheritance might be propagat...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2005.07.002
更新日期:2005-10-01 00:00:00
abstract::Genome editing with engineered nucleases (zinc finger, TAL effector, or CRISPR/Cas9-based) enables `write' access to regulatory programs executed by primary human cells. A decade of its clinical development, along with a reduction of conventional gene therapy to medical and commercial practice, has made cell reprogram...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2018.05.005
更新日期:2018-10-01 00:00:00
abstract::Both complex disorders and monogenetic diseases are often modulated in their phenotype by further genetic, epigenetic or extrinsic factors. This gives rise to extensive phenotypic variability and potentially protection from disease manifestations, known as incomplete penetrance. Approaches including whole transcriptom...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2013.03.003
更新日期:2013-06-01 00:00:00
abstract::Covalent modifications of histone proteins play key roles in transcription, DNA repair, recombination, and other such processes. Over a hundred histone modifications have been described, and a popular idea in the field is that the function of a single histone mark cannot be understood without understanding its combina...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2012.02.013
更新日期:2012-04-01 00:00:00
abstract::The ability to reprogram cell lineage specification through the activity of master regulatory transcription factors has transformed disease modeling, drug screening, and cell therapy for regenerative medicine. Recent advances in the engineering of synthetic transcription factors to modulate endogenous gene expression ...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2018.05.001
更新日期:2018-10-01 00:00:00
abstract::Evolutionary studies suggest that the limbs of vertebrates and the appendages of arthropods do not share a common origin. However, recent genetic studies show new similarities in their developmental programmes. These similarities might be caused by the independent recruitment of homologous genes for similar functions ...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2005.06.007
更新日期:2005-08-01 00:00:00
abstract::Colonial ascidians are marine invertebrate chordates that are the closest invertebrate relative to the vertebrates. Colonies of Botryllus schlosseri undergo a continuous asexual reproduction process that involves the regeneration of entire new bodies, which include all somatic and germline tissues. This adult regenera...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2016.06.001
更新日期:2016-08-01 00:00:00
abstract::Over the past decade, many potential candidates for molecules involved in pattern formation in the vertebrate embryo have been identified. Manipulation of the expression of some of these factors has generated fascinating results that have allowed investigators to address their roles in embryogenesis. One such family c...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(05)80172-8
更新日期:1992-08-01 00:00:00
abstract::Compartmentalized distribution of functional components is a hallmark of the eukaryotic nucleus. Technological advances in recent years have provided unprecedented insights into the role of chromatin organization and interactions of various structural-functional components toward gene regulation. SATB1, the global chr...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2007.08.003
更新日期:2007-10-01 00:00:00
abstract::Many zebrafish transcription factors have been isolated, and the challenge at present is to uncover the genes and pathways they regulate. The wealth of developmental mutants available for study and recent advances in zebrafish transgenic technology have allowed identification of putative transcriptional regulatory pat...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/s0959-437x(99)00017-9
更新日期:1999-10-01 00:00:00
abstract::Trait exaggeration, well known to naturalists and evolutionary biologists, has recently become a prominent research subject in the modern field of Evolutionary Developmental Biology. A large number of traits that can be considered as cases of exaggeration exist in nature. Yet, the field has almost exclusively focused ...
journal_title:Current opinion in genetics & development
pub_type: 杂志文章,评审
doi:10.1016/j.gde.2016.05.015
更新日期:2016-08-01 00:00:00