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:Tunicate ascidians exhibit metamorphosis that converts tadpole, swimming larva into immotile adult. In ascidian Ciona intestinalis, the mutant tail regression failed (trf) which shows defects in the metamorphosis was previously reported (Nakayama-Ishimura et al., 2009). In the metamorphosis process, trf larvae settle normally with their adhesive papillae, but do not start tail regression, papillae retraction and sensory vesicle retraction, while development of adult organs proceed. To understand the molecular mechanism of the metamorphosis, microarray analysis of trf mutant was performed.
Project description:To compare with new Ciona intestinalis microarray NimbleGen 135k, we peformed gene expression analysis of GPL14686. Total RNAs from common samples with a part of NimbleGen's analysis are used for this analysis. Ovary and Neural Complex from adult Ciona intestinalis, duplicate, 2 time points during spawning
Project description:Recent whole-genome studies and in-depth expressed sequence tag (EST) analyses have identified most of the developmentally relevant genes in the urochordate, Ciona intestinalis. In this study, we made use of a large-scale oligo-DNA microarray to further investigate and identify genes with specific or correlated expression profiles. This large-scale oligo-DNA microarray for C. intestinalis should facilitate the understanding of global gene expression and gene networks during the development and ageing of a basal chordate. Keywords: gene expression, development, ageing, life cycle
Project description:We recently showed HMX is expressed in bipolar tail neurons (BTN) in early embryos of Ciona intestinalis. In order to assess the function of the homeobox transcription factor in this cell fate, we used an overexpression strategy. ciHMX was overexpressed in the epidermis, followed by RNAseq of experimental and control embryos. We then looked for differential expression of BTN fate markers, testing if HMX is able to regulate BTN fate determination.
