WormMine: ExpressionPattern Expr96

• Pattern: The expression pattern appears to have two components, both in muscle cells, and for both the b-galactosidase appears in discrete sub-cellular foci.The first component begins in late embryogenesis and continues through early larval stages. Four longitudinal bands of b-galactosidase staining are observed running from just behind the pharynx to the posterior of the worms. This may correspond to to the body wall muscle cells, apart from those body wall muscle cells in the head.The second component begins in late larval stages as the gonad develops. b-galactosidase staining is first diffuse, in four patches a-p along the gonad. It then becomes more discrete as the subcellular foci form although apparently still in four bands, which we think correspond to the uterine muscle cells. As the adult hermaphrodites age, these foci seem to become progressively more specifically associated with lateral positions and we hypothesise that these foci are related to the attachments of the uterine muscle cells to the hypodermal seam cells. Expression in males has not yet been examined.
• Primary Identifier: Expr96
• Remark: Other strains injected with this plasmid are UL268 and UL269. late embryo(author) = fully-elongated embryo(curator).

2 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
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
muscle lining of the uterine wall.	uterine muscle		WBbt:0005342

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00018268	F41C3.2	F41C3.2	Caenorhabditis elegans

8 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 whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching.		embryo Ce	WBls:0000003
	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 stage after an hermaphrodite animal is fully-developed and reaches maturity.		adult hermaphrodite Ce	WBls:0000057