Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1142156 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Xenopus petersii (Peter's clawed frog) genome, aXenPet1, paternal haplotype
| PRJNA1058702 | ENA
Project description:Xenopus petersii (Peter's clawed frog) genome, aXenPet1, maternal haplotype
| PRJNA1058703 | ENA
Project description:Frogs are an ecologically diverse and phylogenetically ancient group of anuran amphibians that include important vertebrate cell and developmental model systems, notably the genus Xenopus. Here we report a high-quality reference genome sequence for the western clawed frog, Xenopus tropicalis, along with draft chromosome-scale sequences of three distantly related emerging model frog species, Eleutherodactylus coqui, Engystomops pustulosus and Hymenochirus boettgeri. Frog chromosomes have remained remarkably stable since the Mesozoic Era, with limited Robertsonian (i.e., centric) translocations and end-to-end fusions found among the smaller chromosomes. Conservation of synteny includes conservation of centromere locations, marked by centromeric tandem repeats associated with Cenp-a binding, surrounded by pericentromeric LINE/L1 elements. We explored chromosome structure across frogs, using a dense meiotic linkage map for X. tropicalis and chromatin conformation capture (Hi-C) data for all species. Abundant satellite repeats occupy the unusually long (~20 megabase) terminal regions of each chromosome that coincide with high rates of recombination. Both embryonic and differentiated cells show reproducible association of centromeric chromatin, and of telomeres, reflecting a Rabl-like configuration. Our comparative analyses reveal 13 conserved ancestral anuran chromosomes from which contemporary frog genomes were constructed.
2022-03-30 | GSE199671 | GEO
Project description:We report on the implications of genetic KO versus MO-mediated KD of the mesoderm-specifying Brachyury paralogues in the Western clawed frog Xenopus tropicalis. While both KO and KD embryos fail to activate the same core gene regulatory network, resulting in virtually identical morphological defects, embryos injected with control or target MOs also show a systemic GC content dependent immune response and many off-target splicing defects.
2018-02-21 | GSE96655 | GEO
Project description:Congo dwarf clawed frog is related to clawed frogs of the genus Xenopus
| PRJNA68371 | ENA
Project description:Merlin's clawed frog is distantly related to clawed frogs in the genus Xenopus
| PRJNA68375 | ENA
Project description:In this work, we developed a microprobe capillary electrophoresis high-resolution mass spectrometry approach to identify proteins in single identified cells in live embryos of the South African clawed frog (Xenopus laevis) and also zebrafish. We used a pulled borosilicate capillary to aspirate a calibrated portion of the cell of interest. Proteins in the collected aspirate were detected and quantified via a bottom-up proteomic workflow that was downscaled to the single cells. The microprobe mass spectrometry platform is scalable to smaller cells in live, morphologically complex, developing embryos. As an example, we used this approach to analyze proteomic changes in cells that form a clone in the early developing Xenopus laevis embryo.
2020-05-26 | PXD006905 | Pride