2,228 results found
    1. Chromosomes and Gene Expression

    Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development

    Li Zhou et al.
    Selective degradation of mature miRNAs shapes temporal miRNA expression patterns and is important for proper regulation of target genes to support normal development of Drosophila embryos.
    1. Genetics and Genomics
    2. Plant Biology

    Genetic basis of sRNA quantitative variation analyzed using an experimental population derived from an elite rice hybrid

    Jia Wang et al.
    The expression of small RNAs (or sRNAs) is regulated not only by mRNA expression, but also by their own regulatory elements and by sRNA biogenesis genes.
    1. Developmental Biology
    2. Evolutionary Biology

    Domestic chickens activate a piRNA defense against avian leukosis virus

    Yu Huining Sun et al.
    To protect the germ line genome, chickens acquire new small RNA-based immune defense in response to recently endogenized retroviruses by turning a truncated provirus into a weapon.
    1. Cell Biology
    2. Developmental Biology

    Endogenous siRNAs promote proteostasis and longevity in germline-less Caenorhabditis elegans

    Moran Cohen-Berkman et al.
    Endo-siRNAs slow down the rate of aging and enable the maintenance of a responsive heat shock response in aging germline-less Caenorhabditis elegans.
    1. Chromosomes and Gene Expression

    A tudor domain protein, SIMR-1, promotes siRNA production at piRNA-targeted mRNAs in C. elegans

    Kevin I Manage et al.
    SIMR-1 acts downstream of the piRNA pathway to promote siRNA amplification by the Mutator complex and localizes to perinuclear foci distinct from Mutator foci, P granules and Z granules.
    1. Chromosomes and Gene Expression

    piRNA-guided co-transcriptional silencing coopts nuclear export factors

    Martin H Fabry et al.
    A member of the Drosophila Nuclear Export Factor (Nxf) family, Nxf2, forms part of the piRNA-dependent co-transcriptional silencing complex and is essential for transposon repression in fly ovaries.
    1. Chromosomes and Gene Expression

    Identification of Pol IV and RDR2-dependent precursors of 24 nt siRNAs guiding de novo DNA methylation in Arabidopsis

    Todd Blevins et al.
    The 24-nucleotide long siRNAs that guide cytosine methylation in Arabidopsis are made by dicing short double-stranded RNAs that are only around 30 nucleotides long.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Viral miRNA adaptor differentially recruits miRNAs to target mRNAs through alternative base-pairing

    Carlos Gorbea et al.
    iRICC, a new method to identify RNA-RNA interactions in vivo, provides mechanistic insight into the function of a viral non-coding RNA.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Biogenesis of phased siRNAs on membrane-bound polysomes in Arabidopsis

    Shengben Li et al.
    Arabidopsis microRNAs and their effector protein ARGONAUTE1 associate with and act on polysomes on the rough endoplasmic reticulum.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Hfq CLASH uncovers sRNA-target interaction networks linked to nutrient availability adaptation

    Ira Alexandra Iosub et al.
    High-throughput RNA-RNA interaction analysis uncovers many novel sRNA-target interactions at various growth stages in Escherichia coli.

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