WormMine: ExpressionPattern Expr1922

• Pattern: Similar patterns of expression was seen from early larval stages through the adult stage. In L1 hermaphrodites, expression can be seen in the intestine, with the posterior gut showing more expression than the anterior gut. In the posterior-most part of the hermaphrodite, the hypodermal tail region also expresses this reporter. Occasionally, in the head, hypodermal regions show expression along with a pair of unidentified neurons. L4 and adult animals show a similar expression pattern to that seen in L1 hermaphrodites. In addition, L4 and adult animals show expression in hypodermal regions through the entire body length of the animal. Four stripes of alternating thickness can be seen, originating in the hypodermal regions of the head and spanning the length of the animal to the posterior most hypodermal regions of the tail.
• Primary Identifier: Expr1922
• Remark: Reporter gene fusion type not specified.

4 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
A chain of very large cuboidal cells forming a wide central lumen in which food arrives from the posterior pharynx, is digested, and from which waste products proceed to the rectum. Intestinal rings form in groups of two and four cells surrounding the common lumen; thus the epithelium is only one cell deep at any point, with neighboring cells firmly secured to their neighbors by apical adherens junctions. These cells have very large nuclei and many large vacuoles, yolk granules, and other inclusions; the latter increase in number and electron density as the animal ages.	intestine	gut	WBbt:0005772
Epidermal layer.	hypodermis	epidermis	WBbt:0005733
posterior region, from rectum to the end	tail		WBbt:0005741
anterior-most body region containing the pharynx.	head		WBbt:0005739

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00003055	lon-1	F48E8.1	Caenorhabditis elegans

5 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