WormMine: ExpressionPattern Expr9344

• Pattern: cwn-1 was mostly localized to the posterior half of L1 larvae, in a pattern that was already present at the comma stage of embryonic development. cwn-1 was mainly expressed in posterior body wall muscle cells and in the M cell descendants that give rise to body wall muscle cells and the vulva and uterine muscle cells. In addition, several cells were found to co-express cwn-1 including the anal depressor muscle, the body wall muscle quadrants VL23 and VR24 and P11/12. Interestingly, it was observed that the two lateral canal associated neurons (CANs) simultaneously induce cwn-1 expression during late L1, an expression that persists throughout larval development.
• Primary Identifier: Expr9344

11 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 associated with hermaphrodite vulva.	vulval muscle		WBbt:0005821
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
muscle lining of the uterine wall.	uterine muscle		WBbt:0005342
Postembryonic blast cells for ventral cord motorneurons, ventral hypodermis, vulva, male preanal ganglion; ventral hypodermis in L1	P12	lineage name: ABprapappa	WBbt:0004409
Postembryonic blast cells for ventral cord motorneurons, ventral hypodermis, vulva, male preanal ganglion; ventral hypodermis in L1	P11	lineage name: ABplapappa	WBbt:0004410
Process runs along excretory canal, no synapses, essential for survival	CANL	lineage name: ABalapaaapa	WBbt:0004949
Process runs along excretory canal, no synapses, essential for survival	CANR	lineage name: ABalappappa	WBbt:0004947
Embryonic cell of pedigree Cappppv.	Cappppv	lineage name: Cappppv	WBbt:0006337
Embryonic cell of pedigree Cpppppv.	Cpppppv	lineage name: Cpppppv	WBbt:0005890
Blast cell which divides to product sex-specific muscle cells.	sex myoblast		WBbt:0008373

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000857	cwn-1	K10B4.6	Caenorhabditis elegans

5 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	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 C. elegans life stage spanning 390-420min 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 looks like a comma. A stage between bean embryo and 1.5-fold embryo.		comma embryo Ce	WBls:0000017
	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
	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