Project description:We present a comprehensive proteome atlas of the model chordate Ciona, covering eight developmental stages and ~7k translated genes as well as a deep quantitative atlas of maternal proteins found in the Ciona egg.
Project description:We report the comprehensive sequencing of small RNA libraries created from different developmental stages (larva and gastrula) of the basal chordate, Ciona intestinalis. These libraries were used for the identification of microRNAs in this organism. Sequencing of small RNA libraries from 2 stages of Ciona intestinalis.
Project description:We report the comprehensive sequencing of small RNA libraries created from different developmental stages (larva and gastrula) of the basal chordate, Ciona intestinalis. These libraries were used for the identification of microRNAs in this organism.
Project description:The tadpole-type larva of Ciona has emerged as an intriguing model system for the study of neurodevelopment. The Ciona intestinalis connectome has been recently mapped, revealing the smallest central nervous system (CNS) known in any chordate, with only 177 neurons. This minimal CNS is highly reminiscent of larger CNS of vertebrates, sharing many conserved developmental processes, anatomical compartments, neuron subtypes, and even specific neural circuits. Thus, the Ciona tadpole offers a unique opportunity to understand the development and wiring of a chordate CNS at single-cell resolution. Here we report the use of single-cell RNAseq to profile the transcriptomes of single cells isolated by fluorescence-activated cell sorting (FACS) from the whole brain of Ciona robusta (formerly intestinalis Type A) larvae. We have also compared these profiles to bulk RNAseq data from specific subsets of brain cells isolated by FACS using cell type-specific reporter plasmid expression. Taken together, these datasets have begun to reveal the compartment- and cell-specific gene expression patterns that define the organization of the Ciona larval brain.
Project description:We applied single cell RNA seq with 10x genomics platform to study the cell identity change in Ciona late tailbud embryos. By comparing single cell data from Pax3/7>Foxc amd control embryos, we found ectopic expression of FoxC in BTN cells transformed into PSC cells, which suggest common shared origin of BTNs and PSCs.
Project description:Ciona develops according to a stereotyped or invariant lineage. This allowed us to collect precisely defined replicates of all eight blastomeres of the right half of the embryo at the 16-cell stage of Ciona. We manually dissected each embryo, collecting and identifying each cell before library preparation and single-cell RNA-seq to give us a data set of 8 blastomeres x 4 embryos (32 cells). We sequenced these on MiSeq and HiSeq 2500. A fifth embryo was only sequenced on MiSeq and excluded from subsequent analysis.