WormMine: ExpressionPattern Expr89

• Pattern: This pattern consists of two components. The first involves strong non-localised staining of the pharyngeal muscle, in which expression can be seen in 3-fold embryos through to adulthood. Staining is most pronounced in the isthmus and metacorpus and precludes the buccal cavity. There is some variability in the strength of expression and the muscle groups of the pharynx which stain. Non-localised staining of the bodywall muscles can be seen in L4 stage larvae and in adults. Some mosaicism is observed however, with the anterior bodywall muscles staining preferentially.
• Primary Identifier: Expr89
• Remark: Other authors: "Bauer PK" "Hope IA" Date 1997-06

2 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
type of cells that make up muscle layers in the pharynx.	pharyngeal muscle cell		WBbt:0005451
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

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00015061	cpna-2	B0228.4	Caenorhabditis elegans

6 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	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 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 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