Project description:To understand the basic biological properties of supporting cells of the mammalian inner ear, we examined the transcriptome of adult pillar and Deiters’ cells. Morphologically distinct pillar and Deiters’ cells were isolated from the organ of Corti from adult CBA/J mice. One thousand pillar and Deiters’ cells were separately collected for each biological replicate, using the suction pipette technique. RNA sequencing of three biological replicates, each with two technical repeats, was performed. The resulting sequenced reads were mapped. Comparisons between pillar cells and Deiters’ cells allow identification of enriched genes, as well as differentially expressed genes that result in cellular specialization. Our dataset provides an extensive resource for understanding the molecular mechanisms underlying morphology, function, and pathology of adult mouse pillar and Deiters’ cells.
Project description:The surprising observation that virtually the entire human genome is transcribed means we know very little about the function of many emerging classes of RNAs, except their astounding diversity. Traditional RNA function prediction methods rely on sequence or alignment information, which are limited in their ability to classify classes of non-coding RNAs (ncRNAs). To address this, we developed CoRAL, a machine learning-based approach for classification of RNA molecules. CoRAL uses biologically interpretable features including fragment length, cleavage specificity, and antisense transcription to distinguish between different ncRNA classes. We evaluated CoRAL using genome-wide small RNA sequencing (smRNA-seq) datasets from two human tissue types (brain and skin [GSE31037]), and were able to classify six different types of RNA transcripts with 79~80% accuracy in cross-validation experiments, and with 71~73% accuracy when CoRAL uses one tissue type for training and the other as validation. Analysis by CoRAL revealed that long intergenic ncRNAs, small cytoplasmic RNAs, and small nuclear RNAs show more tissue specificity, while microRNAs, small nucleolar, and transposon-derived RNAs are highly discernible and consistent across the two tissue types. The ability to consistently annotate loci across tissue types demonstrates the potential of CoRAL to characterize ncRNAs using smRNA-seq data in less characterized organisms.
2013-07-07 | GSE43335 | GEO
Project description:Dendrogyra Microbiomes
| PRJNA1189597 | ENA
Project description:Symbiodiniaceae assemblage shift during annual thermal stress in pillar coral