WormMine: ExpressionPattern Expr628

• Pattern: 1-28 cell embryo, staining present in all cells (probably represents maternal dif-1 RNA). 58 cell stage, staining ceases in all but the gut progenitor cells, gut expression continues throughout embryogenesis. At this stage gut staining becomes stronger. ~200 cell stage, dif-1 RNA detected in hypodermal cells and persists until hypodermal cells begin to enclose the embryo (it is not clear if hypodermal expression persists after this time). Expression in hypodermis starts after the decay of dif-1 RNA in all but gut precursor cells. 550 cell stage, detected only in gut and hypodermal cells early morphogenesis, strong expression in gut but weak in hypodermis.
• Primary Identifier: Expr628
• Remark: See Expr629 for Expr_pattern for the same locus. This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).

2 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

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000996	dif-1	F49E8.5	Caenorhabditis elegans

1 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching.		embryo Ce	WBls:0000003