Project description:Purpose: The goal of this study is to understand the progressive patterning of neurogenesis of the developing zebrafish hindbrain. 16hpf, 24hpf and 44hpf zebrafish hindbrains were used for single-cell RNA-sequencing with the aim to uncover hindbrain development. Methods: 40 microdissected hindbrains per each stage were dissociated at loaded into the 10x Genomics Chromium Platform, and sequenced using Illumina HiSeq 4000. Conclusions: Our study constitute a resource of hindbrain gene expression during development. We have identified transcriptional programs involved in: rhombomere segmental identity, dorso-ventral patterning, boundary and centre progenitor cells and temporal regulation of neurogenesis.
Project description:The molecular logic that specifies and assembles closely-related subtypes of neurons into functional sensorimotor circuits remains unclear. The goal of this study was to characterize the molecular profiles of hindbrain vestibular neurons in the larval zebrafish to identify candidate molecular programs that specify their subtype fate, topography, and circuit assembly. We used single-cell RNA sequencing to generate a comprehensive atlas of hindbrain vestibular neurons and fluorecent in situ hybridization to annotate profiled neurons. Our dataset serves as a reference for evaluating developmental changes in molecular profiles following perturbations and identifies new candidate molecular solutions that assemble closely-related subtypes into functional circuits.
Project description:Here, we generated multiome (coupled scRNA-seq and scATAC-seq) data over a time course of mid- and hindbrain organoid development to map cell composition and explore the regulatory mechanisms underlying cell type maturation. The dataset incorporates 5 time points from day 7 to day 120 from 3 human induced pluripotent stem cell (iPSC) lines using 2 previously established protocols. The protocols differentially generate ventral and dorsal cell types, and together cover regions such as floor-plate, dorsal and ventral midbrain, cerebellum, and additional parts of hindbrain. Comparing the data to a reference atlas of the developing human brain and to an integrated neural organoid cell atlas, we find that the gene regulatory architecture in organoid cells is predictive of primary counterparts and also that multiple regions are under-represented in existing organoid models.
Project description:In this study, we performed single-cell RNA-sequencing (scRNA-seq) on 24 hours post-fertilization (hpf) mnx1:GFP zebrafish embryos to characterize the transcriptional diversity of developing spinal motor neurons. Our goal was to identify molecularly distinct subtypes within the motor neuron population. This dataset provides evidence for the existence of at least three transcriptionally distinct motor neuron subtypes.
Project description:identification of differentially expressed genes in gas6 homozygous mutant hindbrain when compared to wildtype hindbrain in zebrafish