WormMine: ExpressionPattern Expr1533

• Pattern: CEH-18 was detected in the nuclei of the sheath cells of the somatic gonad. In contrast, CEH-18 was not detected in diakinesis stage oocytes, pachytene stage meiotic germ cells, mitotic germ cells, mature sperm, or fertilized oocytes. CEH-18 was present a sheath cell nuclei as early as L4 stage, before the onset of oogenesis.
• Primary Identifier: Expr1533

1 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
five pairs of thin gonadal sheath cells form a single layer covering the germ line component of each arm, each pair occupying a stereotyped position along the gonad proximal-distal axis.	gonadal sheath cell		WBbt:0005828

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000441	ceh-18	ZC64.3	Caenorhabditis elegans

2 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	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 stage after an hermaphrodite animal is fully-developed and reaches maturity.		adult hermaphrodite Ce	WBls:0000057