WormMine: AnatomyTerm WBbt:0006166

• Definition: embryonic cell
• Name: ABalppppppa
• Primary Identifier: WBbt:0006166

3 Children

Definition	Name	Synonym	Primary Identifier
one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil	ASEL	lineage name: ABalppppppaa	WBbt:0003904
embryonic cell	ABalppppppap		WBbt:0005952
nucleus of pedigree ABalppppppa	ABalppppppa nucleus		WBbt:0001178

1 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Top 300 transcripts enriched in ABalppppppa, ABpraaapppa according to single cell RNAseq.	Top 300 enriched transcripts were determined by log2.ratio of the tpm in the cell type vs the tpm in the other cells * the log2 of the cell.type tpm.	WBPaper00061340:ASE_parent

3 Expression Patterns

• Primary Identifier: Expr103
• Remark: Other strain-- UL123
• Pattern: This strain exhibits strong expression in the embryo. Expression is first seen in the 50-80 cell embryo and extends through to adulthood. It appears that most of the AB cells in the embryo stain, and what appears to be the cells of the C lineage. Some embryos exhibit staining in the two rows of nuclei that are the E lineage. All embryonic staining is very intense, and it spreads to the cytoplasm giving blue embryos, therefore obscuring the DAPI staining, making it difficult to count the number of cells in the embryos as each component begins expressing. This intense staining fades as the embryo ages, sometimes leaving blue comma stage embryos with no distinct nuclei staining. Hypodermal expression is seen in the 3 fold stage of embryogenesis and in young larvae which most probably are C-derived hyp-7 nuclei. Expression weakens as the worm gets older and is much less frequently expressed in adults. Some adults do show staining in the anterior hypodermal nuclei (hyp-3, hyp-4) and in the anterior hypodermal seam cells, also some nuclei stain in the tail.

• Primary Identifier: Expr1633
• Pattern: First, pKK52 expression begins at the 28-cell stage in all four granddaughters and 16 great-great granddaughters of the MS and AB founder cells, respectively; this expression continues in many, possibly all, of their descendants until around the time of hatching. Second, expression becomes more pronounced in seam cells about 1 hour after their birth. This seam expression remains strong throughout embryonic and larval development, but becomes slightly reduced in adults. Third, robust expression is also seen in several cells in the head region, at least some of which are cells in the nervous system (neurons and/or support cells), beginning at approximately the comma stage and continuing through adulthood. For simplicity, this component of the expression pattern was referred as nervous system expression, although the precise identity of these cells were not determined.

• Primary Identifier: Expr1634
• Remark: See Expr1633 for pKK52 expression pattern.
• Pattern: pKK41 is expressed in the same groups of cells as the elt-5 translational reporter (pKK52), but the relative expression levels are different. Whereas the elt-5 reporter is strongly expressed in both seam cells and the nervous system during the comma through pretzel stages, the elt-6 reporter is strongly expressed only in the nervous system. Only weak expression of the elt-6 reporter is apparent in seam cells and in the AB and MS descendants during embryogenesis, but the seam expression becomes stronger during larval development. Strong expression of the elt-6 reporter in the nervous system continues throughout larval development.

7 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
	The C. elegans life stage spanning 350-620min 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 stage that embryo starts elongation until elongation is over.		elongating embryo Ce	WBls:0000015
	The C. elegans life stage spanning 290-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage when embryo just finished gastrulation and is enclosing.		enclosing embryo Ce	WBls:0000013
	The C. elegans life stage spanning 100-290min after first cleavage at 20 Centigrade. Proliferate from 28 cells to 421 cells. Referring to the whole period of gastrulation.		gastrulating embryo Ce	WBls:0000010
	The C. elegans life stage spanning 0-350min after first cleavage at 20 Centigrade. Proliferate from 1 cell to 560 cells. From start of first cleavage until cleavage is over.		proliferating embryo Ce	WBls:0000004
	The C. elegans life stage spanning 350-390min 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. Emrbyo elongation started but have not formed comma shape yet. The shape of embryo looks like a lima bean. A stage right before comma embryo. Also called lima embryo or lima bean stage.		bean embryo Ce	WBls:0000016
	The C. elegans life stage spanning 210-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage before the fast cleavage of cells finishes.		late cleavage stage embryo Ce	WBls:0000014

2 Parents

Definition	Name	Synonym	Primary Identifier
cell that exists in and is part of an embryo.	embryonic cell		WBbt:0007028
embryonic cell	ABalpppppp		WBbt:0006396