WormMine: ExpressionPattern Expr1381

• Pattern: Expression of both the 48.1C and 41.2C transgenes was consistently observed in embryos from gastrulation onward, in all larval stages and in adults. In postembryonic stages, both transgenes were expressed in most tissues. Although 41.2C is expressed in numerous tissues, especially the pharynx and gut, it is not expressed in the gonad. 41.8C express in a tissue general fashion and expression s in every cell type has been observed in strains carrying this transgene, including neurons, muscle, intestine, and hypodermis. Only the germ-line failed to express this fusion gene. Tissues expressing the hsp-16::lacZ fusion in these strains include nerve ganglia in the head and ventral cord; hypodermal nuclei of the lateral hypodermis, vulva, head and tail, body wall and pharyngeal muscle, somatic gonad, mesodermal tissue such as coelomocytes, and muscles involved in defecation. On the other hand, subtle differences in the expression pattern of these two transgenes were identified. 41.2C stain most intensely throughout the pharynx whereas 48.1C demonstrated conspicuous expression in body wall muscle.
• Primary Identifier: Expr1381

11 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
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
Epidermal layer.	hypodermis	epidermis	WBbt:0005733
a large process bundle that runs along the vental mid-line extending from the ventral region of the nerve ring.	ventral nerve cord	ventral cord	WBbt:0005829
Longitudinal bands of muscle cells surrounding animal body, with one band running in each quadrant of the body, regulated contraction and relaxation of these muscles cause locomotion.	body wall musculature	body muscle	WBbt:0005813
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
neuron with its cell body situated in the head, excluding the pharynx.	head neuron		WBbt:0006751
a single, H-shaped cell which lies just above the anus and connects the roof of the anal canal to the dorsal bodywall; its contractions act to increase the size of the anal opening by lifting the roof of the rectum and hence facilitate expulsion of intestinal contents.	anal depressor muscle	dilator muscle	WBbt:0004292
a saddle-shaped muscle cell that encircles the intestinal-rectal valve	anal sphincter muscle	lineage name: ABprpppppap	WBbt:0005798
intestinal muscle cell, attach to intestine and body wall anterior to anus	intestinal muscle	stomato-intestinal muscle	WBbt:0005796
A free-floating spherical cell lying in the pseudocoelomic cavity of larvae and adult C. elegans which can endocytose many compounds, possibly for immune surveillance. There are six coelomocytes in adult hermaphrodites, and they display prominent cytoplasmic inclusions and vacuoles.	coelomocyte		WBbt:0005751
organ producing either sperm or ova.	gonad		WBbt:0005175

4 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00002015	hsp-16.1	T27E4.8	Caenorhabditis elegans
WBGene00002016	hsp-16.2	Y46H3A.3	Caenorhabditis elegans
WBGene00002018	hsp-16.41	Y46H3A.2	Caenorhabditis elegans
WBGene00002019	hsp-16.48	T27E4.3	Caenorhabditis elegans

5 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The C. elegans life stage spanning 620-800min(hatch) 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. A stage after elongation is over. The last stage of embryogenesis. Also called pre-hatched embryo, late embryo or morphogenetic embryo.		fully-elongated embryo Ce	WBls:0000021
	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 290-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage when embryo just finished gastrulation and is enclosing.		enclosing embryo Ce	WBls:0000013
	The C. elegans life stage spanning 100-290min after first cleavage at 20 Centigrade. Proliferate from 28 cells to 421 cells. Referring to the whole period of gastrulation.		gastrulating embryo Ce	WBls:0000010
	A developemental life stage of the nematode Caenorhabditis elegans that occurs from egg hatching until death.		postembryonic Ce	WBls:0000022