WormMine: ExpressionPattern Expr1327

• Pattern: Expression of the lir-1::lacZ construct pML169, which should reflect the expression of all lir-1 isoforms, and of the lir-1::lacZ construct pML165, which should reflect only the expression of lir-1 isoforms starting after the second exon, were first very weakly detected at the 200-cell stage and then clearly detected at the 350-cell stage in major hypodermal cells and at the early comma stage in those same hypodermal cells, as well as in support cells and in all minor hypodermal cells. Starting at the late comma stage, expression of the lir-1::lacZ construct pML169, but not that of pML165, was detected in all cells (i.e., in intestinal, pharyngeal, muscle, neuronal, hypodermal, and support cells). Similarly, during larval development, expression of the lir-1::lacZ pML169 was detected in virtually all cells, including cells of the somatic gonad, but not in intestinal cells after the late L1 stage nor in germ cells.
• Primary Identifier: Expr1327
• Remark: Reporter gene fusion type not specified.

4 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
Major cell type of nervous tissue, specialized for transmission of information in the form of patterns of impulses.	neuron	neurone	WBbt:0003679
Contractile cell that makes up muscle tissue.	muscle cell		WBbt:0003675
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
WBGene00003044	lir-1	F18A1.3	Caenorhabditis elegans

4 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 210-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage before the fast cleavage of cells finishes.		late cleavage stage embryo Ce	WBls:0000014
	A developemental life stage of the nematode Caenorhabditis elegans that occurs from egg hatching until death.		postembryonic Ce	WBls:0000022