WormMine: ExpressionPattern Expr1428

• Pattern: nhr-23 RNA is easily detectable in the germline and oocytes. nhr-23 RNA is also detected in 2- and 4-cell embryos but then becomes undetectable in subsequent stages of early embryogenesis. By the comma stage of embryogenesis, a faint in situ signal for nhr-23 appears on the surface of embryos, consistent with expression in the epidermis.
• Primary Identifier: Expr1428

2 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
a female haploid germ cell.	oocyte	ovum	WBbt:0006797
organ producing either sperm or ova.	gonad		WBbt:0005175

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00003622	nhr-23	C01H6.5	Caenorhabditis elegans

2 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The C. elegans life stage spanning 390-420min 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 looks like a comma. A stage between bean embryo and 1.5-fold embryo.		comma embryo Ce	WBls:0000017
	The C. elegans life stage spanning 0-100min after first cleavage at 20 Centigrade. Proliferate from 1 cell to 28 cells. From first cleavage until the start of gastrulation.		blastula embryo Ce	WBls:0000005