WormMine

WSWS298

An integrated data resource for C. elegans and related nematodes

Expression Pattern :

Pattern  This multicomponent pattern expresses from late embryogenesis through to adulthood. Staining is first observed in the pharynx of 1.5-fold embryos. In 3-fold embryos, expression is seen in the pharyngo-intestinal valve and in the intestino-rectal valve, in addition to the pharyngeal staining. In adults, expression in the excretory cell is also apparent, with the anterior canals staining and about 1/4 of the posterior canals staining. The pharyngeal staining is strong in larvae but generally weaker in adults. The pharyngo-intestinal valve shows expression throughout the animals life. Around mid-larval stage the intestino-rectal valve expression becomes fainter until it is rarely seen in adults. Primary Identifier  Expr131
Remark  Other strains-- UL441, UL452 late embryo(author) = elongating embryo(curator).
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4 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
Four processes (canals) of the excretory canal cell each contain a central collecting lumen which feeds to a central lumenal canal in the cell body; the central canal forms a specialized membrane to release fluids into the excretory duct. These five canals form a continuous H-shaped channel which extends almost the full length of the body, generally in contact with the lateral hypodermis and the pseudocoelom. excretory canal canal WBbt:0005775
Intestino-rectal valve virL lineage name: ABprpappppp WBbt:0004511
Intestino-rectal valve virR lineage name: ABprpappppa WBbt:0004510

1 Genes

WormBase Gene ID Gene Name Sequence Name Organism
WBGene00007562 C14A4.12 C14A4.12 Caenorhabditis elegans

8 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 C. elegans life stage spanning 350-620min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The stage that embryo starts elongation until elongation is over. elongating embryo Ce WBls:0000015
  The C. elegans life stage spanning 520-620min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The shape of embryo is elongated and tripple fold. A stage between 2-fold embryo and fully-elongated embryo. Also called pretzel embryo or pretzel stage. 3-fold embryo Ce WBls:0000020
  The C. elegans life stage spanning 420-460min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The shape of embryo is elongated and fold back 50%. A stage between comma embryo and 2-fold embryo. 1.5-fold embryo Ce WBls:0000018