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Species » C. elegans(Genome assembly: WBcel235)

Expression cluster » WBPaper00064850:glh-1(sam65)_downregulated

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  • Overview

    WBPaper00064850:glh-1(sam65)_downregulated

    Species:
    Caenorhabditis elegans
    WormBase ID:
    WBPaper00064850:glh-1(sam65)_downregulated
    Transcripts that showed significantly decreasedexpression in DUP144[glh-1(sam65[glh-1(deletion)-gfp-3xFlag])] I comparing to in wild type control DUP64[glh-1(sam24[glh-1-gfp-3xFlag])] I.

    Algorithm:

    DESeq2, fold change > 2, FDR < 0.05.

    Remarks:

  • Associations

    Anatomy Terms:
    Life Stages:
    Life Stages Definition
    1-day post-L4 adult hermaphrodite CeAt 20 Centigrade: 24-48 hours after L4-adult molt. 4-5 days after first cleavage.
    GO terms:
    Processes:

  • Regulation

    Regulated by Gene:
    glh-1
    Regulated by Treatment:
    Regulated by Molecule:

  • References

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      • Journal article

      1

    1 reference found
    GLH-1/Vasa represses neuropeptide expression and drives spermiogenesis in the C. elegans germline
    Journal article
    Dev Biol
    2022

    Germ granules harbor processes that maintain germline integrity and germline stem cell capacity. Depleting core germ granule components in C. elegans leads to the reprogramming of germ cells, causing them to express markers of somatic differentiation in day-two adults. Somatic reprogramming is associated with complete sterility at this stage. The resulting germ cell atrophy and other pleiotropic defects complicate our understanding of the initiation of reprogramming and how processes within germ granules safeguard the totipotency and immortal potential of germline stem cells. To better understand the initial events of somatic reprogramming, we examined total mRNA (transcriptome) and polysome-associated mRNA (translatome) changes in a precision full-length deletion of glh-1, which encodes a homolog of the germline-specific Vasa/DDX4 DEAD-box RNA helicase. Fertile animals at a permissive temperature were analyzed as young adults, a stage that precedes by 24 &#8203;h the previously determined onset of somatic reporter-gene expression in the germline. Two significant changes are observed at this early stage. First, the majority of neuropeptide-encoding transcripts increase in both the total and polysomal mRNA fractions, suggesting that GLH-1 or its effectors suppress this expression. Second, there is a significant decrease in Major Sperm Protein (MSP)-domain mRNAs when glh-1 is deleted. We find that the presence of GLH-1 helps repress spermatogenic expression during oogenesis, but boosts MSP expression to drive spermiogenesis and sperm motility. These insights define an early role for GLH-1 in repressing somatic reprogramming to maintain germline integrity.

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