WormMine: ExpressionPattern Expr2720

• Pattern: Strong reporter gene expression was first observed in the hypodermal seam cells during embryogenesis and subsequently in the seam cells of all larval stages. The main hypodermal syncytium, hyp7, of larvae and young adult nematodes also displayed reporter gene activity. Strong GFP expression was observed in the toroid cells that form the developing vulva in the L4 larval stage and expression persisted into early adulthood, but was not present in the vulva of mature hermaphrodites. In addition to the hypodermal expression described above for hermaphrodites, intense reporter gene activity was also observed in the developing ray papillae of the L4 male tail. Young adult males exhibited weak expression, restricted to the hypodermis just anterior to the tail. No transgene expression was detected in the dauer larvae, but expression re-appeared approximately 12 h after dauers had been transferred to a fresh lawn of E. coli.
• Primary Identifier: Expr2720
• Remark: No GO_term assigned.
• Subcellular Localization: The expression in individual seam cells was often highly punctate.

6 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
female genital.	vulva		WBbt:0006748
a group of hypodermal cells that lie along the apical midline of the hypodermis, at the extreme left and right sides between nose and tail	seam cell	lateral hypodermis	WBbt:0005753
entire syncytium of hyp7	hyp7 syncytium	hyp7	WBbt:0005734
Gonochoristic organism that can produce male gametes.	male	male organism	WBbt:0007850
cells or anatomical parts specific to the male sex	male-specific anatomical entity		WBbt:0005757
Precursor cell of the male sensory ray (R1-R9).	ray precursor cell		WBbt:0006931

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000039	acn-1	C42D8.5	Caenorhabditis elegans

7 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 stage after an hermaphrodite animal is fully-developed and reaches maturity.		adult hermaphrodite Ce	WBls:0000057