Xenopus laevis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA95549 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Comparison of gene expression in embryos in wich Smicl has been knocked-down and in control embryos
| PRJNA95903 | ENA
Project description:Comparison of gene expression in embryos in wich Activin B has been knocked-down and in control embryos
| PRJNA95651 | ENA
Project description:Xenopus laevis embryos and animal caps: Control vs PouV morpholino
| PRJNA206188 | ENA
Project description:Expression data from Xenopus embryos treated with TTNPB (RAR-agonist), AGN193109 (RAR-antagonist), or Control Vehicle
| PRJNA246318 | ENA
Project description:Transcriptome analysis of Wnt knockdown embryos reveals candidate canonical Wnt/β-catenin target genes during Xenopus laevis gastrulation
| PRJNA310139 | ENA
Project description:Differential expression analysis of triple knockdown of TBP and TBP-related factors (TKD) in Xenopus laevis embryos at early developmental stage 10.5
| PRJNA309218 | ENA
Project description:During gastrulation and neurulation, the chordamesoderm and overlying neuroectoderm of vertebrate embryos converge under the control of a specific genetic programme to the dorsal midline, simultaneously extending along it. However, whether mechanical tensions resulting from these morphogenetic movements play a role in long-range feedback signalling that in turn regulates gene expression in the chordamesoderm and neuroectoderm is unclear. In the present work, by using a model of artificially stretched explants of Xenopus midgastrula embryos and full-transcriptome sequencing, we identified genes with altered expression in response to external mechanical stretching. Importantly, mechanically activated genes appeared to be expressed during normal development in the trunk, i.e., in the stretched region only. By contrast, genes inhibited by mechanical stretching were normally expressed in the anterior neuroectoderm, where mechanical stress is low. These results indicate that mechanical tensions may play a role of a long-range signalling factor that regulates patterning of the embryo, serving as a link coupling morphogenesis and cell differentiation.
2024-01-31 | GSE246027 | GEO
Project description:Genome duplication has played a pivotal role in the evolution of many eukaryotic lineages, including the vertebrates. The most recent vertebrate genome duplication is that in Xenopus laevis, which resulted from the hybridization of two closely related species about 17 million years ago. Here we generated epigenetic profiles and determined gene expression in X.laevis embryos to study the consequences of this duplication at the level of the genome, the epigenome, and gene expression.
2017-09-28 | GSE90898 | GEO
Project description:Animal embryos have the remarkable property of self-organization. Over 125 years ago Hans Driesch separated the two blastomeres of sea urchin embryos and obtained twins, in what was the foundational experiment of experimental embryology. Since then, embryonic twinning has been obtained experimentally in many animals by diverse methods. In a recent study, we developed bisection methods that generate identical twins reliably from Xenopus blastula embryos. In the present study we investigated the transcriptome of regenerating half-embryos after sagittal and dorsal-ventral (D-V) bisections. Individual embryos were operated at midblastula with an eyelash hair and cultured until early gastrula (stage 10.5) or late gastrula (Stage 12) and analyzed the transcriptome of each half-embryo by RNAseq. Because many genes are activated by wound healing, stringent analyses were used to identify genes upregulated in identical twins but not in either dorsal or ventral fragments. At early gastrula cell division-related genes such as histones were identified, whereas at late gastrula pluripotency genes (such as sox2) and germ layer determining genes (such as eomesodermin, ripply2 and activing receptor ACVRI) and a number of secretory pathway components (serpinH1, fucoleptin and sialyl transferase). These findings are consistent with a model in which cell division is required to heal damage, while maintaining pluripotency to permit formation of the organizer with a displacement of 900 from its original site. In addition, the extensive transcriptomic data presented here (30 RNA-seq libraries of individual whole or regenerating half-embryos) provides a useful resource for data mining gene expression during early vertebrate development.
2019-02-01 | GSE124563 | GEO
Project description:Left-right axis determination is a fundamental and conserved developmental process, with consequences for human pathology. At the molecular level, this process requires at least two centers of nodal-type TGFbeta signals: the first center, containing nodal/Xn Microarrays were used to determine differences in gene expression in posterior mesoderm of Xenopus embryos. We compared controls and Derriere depleted embryos. Keywords: loss of function
2009-01-28 | GSE13882 | GEO