Ontology highlight
ABSTRACT:
PROVIDER: PRJNA694694 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:In this study we used mice lacking Evf2 (Evf2TS/TS) and mice expressing a truncated form of Evf2 (Evf1TS/TS) to determine UCE lncRNA epigenetic and chromosome toplogical control. We used 4Cseq to investigate how Evf2 regulates UCE interactions along chromosome 6 (where Evf2 is expressed). We used ChIpseq to compare histone methylation profiles from Evf2TS/TS and Evf1TS/TS. In addition, we used ChIPseq to determine Evf2-depedent regulation of cohesin subunit binding (SMC1 and SMC3) and histone H3K27acetylation. Together, these data support that Evf2 UCE lncRNA controls chromosome topology over multi-megabse distances, through cohesin binding and effects on histone methylation and acetylation. Also included is the ChIPseq profile of Dlx binding sites in SW (outbred strain of mice) from E13.5 GE.
2018-08-23 | GSE117184 | GEO
Project description:Spiders are renowned for their efficient capture of flying insects using intricate aerial webs. How the spider nervous systems evolved to cope with this specialized hunting strategy and various environmental clues in an aerial space remains unknown. Here, we report a brain cell atlas of >30,000 single-cell transcriptomes from a web-building spider (Hylyphantes graminicola). Our analysis revealed the preservation of ancestral neuron types in spiders, including the potential coexistence of noradrenergic and octopaminergic neurons, and many peptidergic neuronal types that are lost in insects. By comparing the genome of two newly sequenced plesiomorphic burrowing spiders with three aerial web-building spiders, we found that the positively selected genes in the ancestral branch of web-building spiders were preferentially expressed (42%) in the brain, especially in the three mushroom body-like neuronal types. By gene enrichment analysis and RNAi experiments, these genes were suggested to be involved in the learning and memory pathway and may influence the spiders’ web-building and hunting behavior. Our results provide key sources for understanding the evolution of behavior in spiders and reveal how molecular evolution drives neuron innovation and the diversification of associated complex behaviors.
2023-10-24 | GSE241696 | GEO
Project description:The goal of this study was to lay the groundwork for comparative transcriptomics of sex differences in the brain of wolf spiders, a non-model organism of the pyhlum Euarthropoda, by generating transcriptomes and analyzing gene expression. To examine differences in sex-differential gene expression, short read transcript sequencing and de novo transcriptome assembly were performed. Messenger RNA (mRNA) was isolated from dissected brain tissue of male and female subadult and mature wolf spiders (Schizocosa ocreata). The data consist of short read sequences for the two different life stages in each sex. Computational analyses on these data include de novo transcriptome assembly, using Trinity and CAP3 assembly suites, and differential expression analysis using the edgeR package. Sample-specific and combined transcriptomes, gene annotations, and differential expression results are described in this data note and are available from associated database submissions.
2021-03-12 | GSE168766 | GEO