WormMine: ExpressionPattern Expr126

• Pattern: Expression is seen from late embryonic (post comma-stage) through to the adult stage. In larvae and adults there is extensive staining of intestinal nuclei. Many cells in the pharynx also give expression (including the pharyngeal muscle cells (m3-m7)). Staining in head hypodermal cells and anterior body hypodermis is also evident. Occasional weak staining of the excretory cell nucleus and the posterior canals is observed.
• Primary Identifier: Expr126
• Remark: Other strain-- UL487 (died out) late embryo(author) = 1.5-fold + 2-fold + 3-fold + fully-elongated embryo(curator).

8 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
Epidermal layer.	hypodermis	epidermis	WBbt:0005733
H-shaped cell associated with the excretory system, largest cell in C. elegans.	excretory cell	excretory canal cell	WBbt:0005812
seventh pharyngeal muscle cell layer	pm7	m7	WBbt:0003721
third pharyngeal muscle cell layer	pm3	M3	WBbt:0003740
fifth pharyngeal muscle cell layer	pm5	M5	WBbt:0003737
fourth pharyngeal muscle cell layer	pm4	M4	WBbt:0003739
sixth pharyngeal muscle cell layer	pm6	m6	WBbt:0003724
any of 20 large epithelial cells which form a tube and are mostly situated as bilaterally symmetric pairs around the tubular lumen. Each of these cell pairs forms an intestinal ring ( II-IX int rings). The most anterior intestinal ring (int ring I), however, is made of four cells. Intestinal cells contain large nuclei with large nucleoli and numerous autofluorescent granules in their cytoplasm.	intestinal cell		WBbt:0005792

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00010043	F54C9.7	F54C9.7	Caenorhabditis elegans

9 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	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 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 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 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
	The C. elegans life stage spanning 460-520min 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 double fold. A stage between 1.5-fold embryo and 3-fold embryo.		2-fold embryo Ce	WBls:0000019