WormMine

WS295

Intermine data mining platform for C. elegans and related nematodes

Anatomy Term :

Definition  any of two cells that generate all somatic tissues of the gonad proper (i.e. ovary or testis ) and genital ducts (e.g. uterus, vas deferens). Name  somatic gonad precursor
Primary Identifier  WBbt:0007854 Synonym  SGP

2 Children

Definition Name Synonym Primary Identifier
Somatic gonad precursor cell Z4 lineage name: MSappaap WBbt:0004574
Somatic gonad precursor cell Z1 lineage name: MSpppaap WBbt:0004577

1 Expression Clusters

Regulated By Treatment Description Algorithm Primary Identifier
  Transcripts that showed significantly higher expression in somatic gonad precursor cells (SGP) vs. head mesodermal cells (hmc). DESeq2, fold change >= 2, FDR <= 0.01. WBPaper00056826:SGP_biased

9 Expression Patterns

Remark Reporter Gene Primary Identifier Pattern Subcellular Localization
    Expr15957 mNG::LIN-7, LIN-2::mK2 and mNG::LIN-10 were found to bebroadly expressed in the worm. In L3 larvae, they were prominentlyexpressed in VPCs and neurons, whereas only LIN-7 and LIN-10 weredetectable in the somatic gonad primordium. In the VPCs,endogenous mNG::LIN-7 was strongly cytosolic, frequently found atpunctae, and occasionally localized to basolateral membranes. We found that LET-23::mK2 and mNG::LIN-7 overlapped at the basolateral plasma membrane in L3 larvae (from P6.p to P6.pxx). This overlap was more apparent in the differentiated vulval cells (L4).  
    Expr15958 mNG::LIN-7, LIN-2::mK2 and mNG::LIN-10 were found to bebroadly expressed in the worm. In L3 larvae, they were prominentlyexpressed in VPCs and neurons, whereas only LIN-7 and LIN-10 weredetectable in the somatic gonad primordium. In the VPCs,endogenous mNG::LIN-7 was strongly cytosolic, frequently found atpunctae, and occasionally localized to basolateral membranes.  
    Expr10052 nhr-111 transcripts were detected by real-time qRT- PCR at modest levels in embryos, but decreased progressively during larval development.The nhr-111::gfp reporter was consistently expressed in at least eight pairs of neurons in the head, the sensory PVD neurons of the posterior lateral body wall, the pharynx, intestine (most often in the posterior- and anterior- most cells), the dorsal peri-vulva region of adults (which may be either uterine or vulval cells), and the somatic gonad precursor cells. Among the head neurons was one prominent pair of sensory neurons just posterior to the nerve ring and at least one pair of neurons or support cells that appear to be inner or outer labial sensory cells. We also observed weak and variable expression in a subset of ventral nerve cord motorneurons. The temporal dynamics of nhr-111::gfp were consistent with nhr-111 qRT-PCR results: expression was very bright in the Z1 and Z4 somatic gonad precursor cells in embryos and early L1, but decreased in the developing gonad at later stages and was relatively faint in other cells. nhr-111 transcripts were detected by real-time qRT- PCR at modest levels in embryos, but decreased progressively during larval development.The nhr-111::gfp reporter was consistently expressed in at least eight pairs of neurons in the head, the sensory PVDneurons of the posterior lateral body wall, the pharynx, intestine (most often in the posterior- and anterior- most cells), the dorsal peri-vulva region of adults (which may be either uterine or vulval cells), and the somatic gonad precursor cells. Among the head neurons was one prominent pair of sensory neurons just posterior to the nerve ring and at least one pair of neurons or support cells that appear to be inner or outer labial sensory cells. We also observed weak and variable expression in a subset of ventral nerve cord motorneurons. The temporal dynamics of nhr-111::gfp were consistent with nhr-111 qRT-PCR results: expression was very bright in the Z1 and Z4 somatic gonad precursor cells in embryos and early L1, but decreased in the developing gonad at later stages and was relatively faint in other cells.  
Picture: Fig 1B, 1C, 1D.   Expr8877 This reporter was expressed in SGPs from shortly after their birth through their divisions in the first larval stage.  
    Expr3085 After hatching, TRA-1 was still detected in SGPs, but its level and subcellular distribution were distinct in the two sexes. In hermaphrodite L1 SGPs, TRA-1 was largely nuclear, but in male L1 SGPs, TRA-1 was present at a lower level and was uniformly distributed between nucleus and cytoplasm. A similar sexually dimorphic difference was observed in the distribution of GFP::TRA-1 in L1 SGPs. The GFP::TRA-1 reporter partially rescued tra-1(0) mutants, indicating that it produces a functional protein. After the first SGP division, TRA-1 continues to be expressed in hermaphrodite gonads, but is no longer detectable in males. In wild-type XX embryos, TRA-1 was predominantly nuclear in SGPs from formation of the primordium, through embryogenesis, and into the first larval stage. Next, embryos from a fog-2 male/female strain was examined , which produces 50% XX and 50% XO progeny, to determine if TRA-1 is similarly expressed in male SGPs. In 2-fold embryos, most SGPs possessed nuclear TRA-1 (27/30). Therefore, TRA-1 is present in SGP nuclei of both XX hermaphrodite and XO male embryos. Expressed in nuclear and cytoplasm.
    Expr16540 Animals carrying kpIs106 expressed GVD-1::GFP in various somatic tissues including the somatic gonad, vulva and seam cells. Subcellularly, GVD-1::GFP prominently localized to the nucleus but could be observed in the cytoplasm as well. GVD-1::GFP expression in the somatic gonad started at the L1 stage and persisted until the adult stage; its expression was clearly visible in Z1 and Z4, their progeny and the SGP at the L1, L2 and early L3 stages, respectively. In the vulval lineage, GVD-1::GFP was present in P6.p and its descendants. In late L3 and early L4 larvae, we noticed GVD-1::GFP in the spermathecal/uterine precursors. In adults, GVD-1::GFP could be observed in DTCs, Sh cells and spermatheca. GVD-1::GFP is seen in the developing uterus and vulva at the L3 stage, persisting in the uterus and vulval epithelium (VE) at the L4 stage.  
    Expr11478 arg-1::GFP is expressed in the head mesodermal cell and tail neurons. Rarely and at very low levels it is expressed in somatic gonadal precursors.  
    Expr12422 In wild-type animals of both sexes, fkh-6::GFP expression began in the somatic gonadal precursors at about 6 hr after hatching.  
    Expr12421 In wild-type L1 larvae, rnr::GFP expression first begins in the SGPs approximately 6 hr after hatching, and also occurs in other dividing cells.  

0 Life Stages

2 Parents

Definition Name Synonym Primary Identifier
a region around premature germline, consists of cells of pedigree Z1 and Z4, which develops to become the somatic gonad. gonadal primordium   WBbt:0008366
precursor cell destined to divide some time after hatching. blast cell   WBbt:0006783