Transcriptomics

Dataset Information

296

The Atlas of Chromatoid Body Components [small RNA-seq]


ABSTRACT: The genome of male germ cells is actively transcribed during spermatogenesis to produce phase-specific protein coding mRNAs and a considerable amount of different non-coding RNAs. Ribonucleoprotein (RNP) granule-mediated RNA regulation provides a powerful means to secure the quality and correct expression of the requisite transcripts. Haploid spermatids are characterized by a unique, unusually large cytoplasmic granule, the chromatoid body (CB), that emerges during the switch between the meiotic and post-meiotic phases of spermatogenesis. To better understand the role of the CB in male germ cell differentiation, we isolated CBs from mouse testes and revealed its full RNA and protein composition. We showed that the CB is mainly composed of RNA-binding proteins and other proteins involved RNA regulation. The CB was loaded with RNA, including pachytene piRNAs, a diverse set of mRNAs and a number of uncharacterized long non-coding transcripts. The CB was demonstrated to accumulate nascent RNA during all the steps of round spermatid differentiation. Our results revealed the CB as a large germ cell -specific RNP platform that is involved in the control of the highly complex transcriptome of haploid male germ cells. Small RNA profiling of purified chromatoid body, each steps of chromatoid body purification, and sortred round spermatid cells

ORGANISM(S): Mus musculus  

SUBMITTER: ying jin   Jorma Toppari  Noora Kotaja  Karin Sõsta  Aurélie Lardenois  Molly Hammell  Vasily V Vagin  Kaja A Wasik  Ying Jin  Matteo Da Ros  Gregory J Hannon  Oliver Meikar 

PROVIDER: E-GEOD-54287 | ArrayExpress | 2014-01-24

SECONDARY ACCESSION(S): GSE54287SRP035613PRJNA236166

REPOSITORIES: GEO, ArrayExpress, ENA

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