WormMine: ExpressionPattern Expr100

• Pattern: Expression is seen occasionally in 3-fold embryos and early larval stages but more consistently in late larvae and adults. Staining is seen in the cell bodies of neurons adjacent to the nerve ring. They are divided into two groups, with a pair of nuclei expressing dorsally in the lateral ganglion and another less distinct group of nuclei located across the isthmus in the ventral ganglion. This pattern is expressed at low levels which may account for the varying numbers of nuclei staining in the ventral ganglion. Expression in larvae is seen as 1 or 2 large nuclei which later may divide to become the aforementioned neuropil. Could these include the cells derived from G1 and/or G2 (RMFL/R or RMHL/R)
• Primary Identifier: Expr100
• Remark: Cells involved = RMFL/R or RMHL/R, i.e. neuronal G1 or G2 lineage Other strain-- UL282 late embryo(author) = 3-fold embryo(curator).

1 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
the most extensive region of neuropil in the animal, consists of a large toroidal bundle of processes.	nerve ring	circumpharyngeal nerve ring	WBbt:0006749

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00008656	lron-5	F10F2.4	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