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Genome-wide identification of candidate genes whose transcripts are locally expressed in early embryos of the spider Parasteatoda tepidariorum

ABSTRACT: Genome-wide identification of candidate genes whose transcripts are locally expressed in early embryos of the spider Parasteatoda tepidariorum

PROVIDER: PRJNA796503 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17579055.fastq.gz	Fastqsanger.gz
	SRR17579056.fastq.gz	Fastqsanger.gz
	SRR17579057.fastq.gz	Fastqsanger.gz
	SRR17579058.fastq.gz	Fastqsanger.gz
	SRR17579059.fastq.gz	Fastqsanger.gz

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Genome-wide identification of candidate genes whose transcripts are locally expressed in early embryos of the spider Parasteatoda tepidariorum

Project description:The early embryo of the spider Parasteatoda tepidariorum initially shows spherical symmetry in morphology. Following a symmetry breaking event, it forms a radially symmetric germ disc in the hemisphere of the egg. In this work, we conducted RNA-sequencing of cells isolated from small different regions of radially symmetric forming/formed germ discs, aming to identify candidate genes whose transcripts are locally expressed in early spider embryos.

2022-06-10 | GSE193511 | GEO

Developmental profiling of gene expression in embryos of the spider Parasteatoda tepidariorum

Project description:The common house spider Parasteatoda tepidariorum is a chelicerate model organism for studying developmental mechanisms and their evolution in arthropods. In contrast to the well-studied model insect, Drosophila melanogaster, embryos of the spider undergo patterning in a cellular environment from early stages (at least after the number of the nuclei increase to 16). Use of spider embryos provide new opportunities to understand the evolution of developmental mechanisms underlying arthropod body plans. This analysis aims to generate genome-scale, developmental profiles of gene expression in embryos of the spider P. tepidariorum, which facilitate a wide range of studies using this spider species.

2018-04-05 | GSE112712 | GEO

Identification of genes whose expression is affected by fuchi nashi pRNAi in early embryos of the spider Parasteatoda tepidariorum

Project description:We identified a GATA-like gene named fuchi nashi (fuchi) as a gene required for establishing a germ disc in the early embryo of the spider Parasteatoda tepidariorum. fuchi transcript is initially expressed in cells at both polar regions of the embryo and later in endodermal and extraembryonic cells. To genome-widely identify genes whose expressions are regulated by fuchi, we conducted RNA-sequencing of whole embryos at three different early stages (stages 2 and 3 and early stage 5) that were untreated (control) or treated for fuchi parental RNA interference (pRNAi).

2022-06-10 | GSE193650 | GEO

Identification of genes whose expression is affected by Delta RNAi in spider embryos

Project description:In the spider Parasteatoda tepidariorum embryo, Delta-Notch signaling plays a key role in early development of the opisthosomal region by regulating the balance between the caudal ectoderm and mesoderm fates (Oda et al., 2007, Development 134, 2195-2205). In this microarray experiment, we attempted to identify candidate genes whose expressions are regulated by Delta-Notch signaling during early phases of the caudal development.

2018-04-13 | GSE113064 | GEO

Genome-wide Identification of genes that transcriptionally respond to altered states of Hedgehog signaling in embryos of the spider Parasteatoda tepidariorum

Project description:Hedgehog signaling plays pivotal roles in formation of the embryonic anterior-posterior axis in the spider Parasteatoda tepidariorum. In this work, using the combination of RNA-sequencing and parental RNA interference (pRNAi), we genome-widely identified genes that transcriptionally responded to altered states of Hedgehog signaling in spider embryos, which were caused by Pt-hedgehog (Pt-hh) pRNAi and Pt-patched (Pt-ptc) pRNAi. The identified genes were classified into four classes (Classes I to IV) based on the positive/negative responses to the Pt-hh pRNAi and Pt-ptc pRNAi states. The Class II genes were negatively regulated by Hh signaling (positive response to Pt-hh pRNAi and negative response to Pt-ptc pRNAi). Among the Class II genes, we identified Pt-msx1 as a key segmentation gene in the spider embryo. Moreover, we conducted a transcriptomic analysis of Pt-msx1 pRNAi embryos and identified additional genes whose expression showed patterns associated with segmentation.

2020-04-01 | GSE136357 | GEO

Parasteatoda tepidariorum

Project description:Parasteatoda tepidariorum overview

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Parasteatoda tepidariorum

Project description:Parasteatoda tepidariorum RNAseq

| PRJNA275246 | ENA

Parasteatoda tepidariorum

Project description:Parasteatoda tepidariorum (common house spider) silk and venom gland transcriptomes

| PRJNA358158 | ENA

Regulation of chromatin accessibility in early embryos of the common house spider Parasteatoda tepidariorum

Project description:We identified a lineage-specific GATA-like gene named fuchi nashi (fuchi) as a gene required for establishing a germ disc in the early embryo of the common house spider Parasteatoda tepidariorum. To investigate possible involvement of the early fuchi activity in regulation of chromatin accessibility, we used an assay for transposase-accessible chromatin with high-throughput sequencing (ATAC-seq). Whole embryos at stage 3 that were untreated (wild-type) or treated for fuchi or hedgehog (hh) parental RNAi (pRNAi), as well as wild-type whole embryos at stages 1 and 2, were analyzed by ATAC-seq. We found that chromatin accesibilities were specifically altered by fuchi pRNAi at many regions of the genome, whereas chromatin accessibilities were little affected by Pt-hh pRNAi, which served as negative control.

2022-06-10 | GSE193870 | GEO

Identification of genes whose expression is affected by ptc + dpp double RNAi in spider embryos

Project description:In the spider Parasteatoda tepidariorum, Hedgehog (Hh) and Decapentaplegic (Dpp) signaling play key roles in the formation of the two major embryonic axes (Akiyama-Oda and Oda, 2010, Development 137, 1263-1273; Akiyama-Oda and Oda, 2006, Development 133, 2347-2357). Patched (Ptc), a receptor for Hh,functions as a negative regulator of Hh signaling. Double parental RNA interference (pRNAi) against spider homologs of ptc and dpp, Pt-ptc and Pt-dpp, respectively, results in severe defects in axis formation. In this microarray experiment, we attempted to identify candidate genes whose expressions are regulated by Hh and Dpp signaling during axis formation.

2019-03-15 | GSE112435 | GEO

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