WormMine: ExpressionPattern Expr14573

• Pattern: Both transcriptional reporters were broadly expressed in embryos and L1 larvae. Both reporters showed expression in the canal, duct, and pore of the excretory system and the seam cells of the epidermis, which sit under the alae and are presumed to secrete factors required for alae development, and in the rectum. The reporters were also active in a number of cells in the pharynx and near the nose tip, where dendrites are anchored. Although both reporters were active in L1 larvae, they were progressively fainter in subsequent larval stages and were not observed in adults.
• Primary Identifier: Expr14573

6 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
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
The passageway in the hindgut between the posterior intestine, the rectal valve and the opening to the exterior.	rectum		WBbt:0005773
a group of hypodermal cells that lie along the apical midline of the hypodermis, at the extreme left and right sides between nose and tail	seam cell	lateral hypodermis	WBbt:0005753
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
The extracellular sinus formed by the excretory duct and pore cells.	Excretory duct		WBbt:0005777
The outlet of the excretory sinus to the exterior environment through the cuticle, on the ventral side of the head, just behind the nerve ring.	excretory pore	pore	WBbt:0005778

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00017028	dex-1	D1044.2	Caenorhabditis elegans

2 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching.		embryo Ce	WBls:0000003
	A developmental life stage of the nematode Caenorhabditis elegans that occurs from egg hatching until adulthood.		larva Ce	WBls:0000023