WormMine

WSWS298

An integrated data resource for C. elegans and related nematodes

Expression Pattern :

Pattern  beta-gal staining detected in all developmental stages including embryos and is most intense in early larval stages. Although NLS was present in the construct between the promoter sequences and lacZ gene, beta-gal staining was found in the cytoplasm and at the membrane. mrp-1 expression is observed in cells of the pharynx, the pharynx-intestinal valve cells and the anterior intestinal cells, the epithelial cells of the vulva and the rectum-intestinal valve cells. Similar tissue distribution is observed with mrp-1::gfp. In L3, staining seen in pharynx, pharynx-intestinal valve and first intestinal cells, intestinal-rectum valve cells. In young adults, staining is detected in epithelial cells of the vulva. Primary Identifier  Expr700
Remark  This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).
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12 Anatomy Terms

Definition Name Synonym Primary Identifier
A group of six equivalent cells forms a tightly constructed `valve` that links the posterior bulb of the pharynx to the anterior four cells of the intestine. These six cells comprise a small epithelial channel with a cuticular lining in continuity with the pharyngeal cuticle and link the lumen of the pharynx to the large lumen of the anterior intestine. pharyngeal-intestinal valve cardia WBbt:0005767
A chain of very large cuboidal cells forming a wide central lumen in which food arrives from the posterior pharynx, is digested, and from which waste products proceed to the rectum. Intestinal rings form in groups of two and four cells surrounding the common lumen; thus the epithelium is only one cell deep at any point, with neighboring cells firmly secured to their neighbors by apical adherens junctions. These cells have very large nuclei and many large vacuoles, yolk granules, and other inclusions; the latter increase in number and electron density as the animal ages. intestine gut WBbt:0005772
the feeding organ, a neuro-muscular pump in the head of the animal, used to ingest food, bacteria suspended in liquid, filter them out, grind them up and transport posteriorly into the instestine. pharynx esophagus WBbt:0003681
adult vulval toroid cell, F, formed by fusion of precursors of lineage names P6.papl, P6.papr, P6.ppal and P6.ppar. vulF   WBbt:0006768
adult vulval toroid cell, E, formed by fusion of precursors of lineage names P6.paal, P6.paar, P6.pppl and P6.pppr. vulE   WBbt:0006767
Intestino-rectal valve virL lineage name: ABprpappppp WBbt:0004511
Intestino-rectal valve virR lineage name: ABprpappppa WBbt:0004510
adult vulval toroid cell, C, formed by fusion of precursors of lineage names P5.ppal, P5.ppar, P7.papl and P7.papr. vulC   WBbt:0006765
adult vulval toroid cell, B1, formed by fusion of precursors of lineage names P5.papa and P7.ppap. vulB1   WBbt:0006763
adult vulval toroid cell, B2. vulB2   WBbt:0006764
adult vulval toroid cell, D, formed by fusion of precursors of lineage names P5.ppp and P7.paa. vulD   WBbt:0006766
adult vulval toroid cell, A, formed by fusion of precursors of lineage names P5.paaa, P5.paap, P7.pppa and P7.pppp vulA   WBbt:0006762

1 Genes

WormBase Gene ID Gene Name Sequence Name Organism
WBGene00003407 mrp-1 F57C12.5 Caenorhabditis elegans

6 Life Stages

Remark Definition Other Name Public Name Primary Identifier
  The stage that begins when a C.elegans individual is fully-developed and has reached maturity. adult Ce WBls:0000041
  The third stage larva. At 25 Centigrade, it ranges 32.5-40 hours after fertilization, 18.5-26 hours after hatch. L3 larva Ce WBls:0000035
  The second stage larva. At 25 Centigrade, it ranges 25.5-32.5 hours after fertilization, 11.5-18.5 hours after hatch. L2 larva Ce WBls:0000027
  The fourth stage larva. At 25 Centigrade, it ranges 40-49.5 hours after fertilization, 26-35.5 hours after hatch. L4 larva Ce WBls:0000038
  The first stage larva. At 25 Centigrade, it ranges 14-25.5 hours after fertilization, 0-11.5 hours after hatch. L1 larva Ce WBls:0000024
  The whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching. embryo Ce WBls:0000003