WormMine: ExpressionPattern Expr1440

• Pattern: In adult animals, expression was seen in three distinct areas: in the eight vulval muscles, in 8-10 ventral neurons in the head and in the most posterior pharyngeal muscle cell, m8. Expression in vulval muscle cells was seen from the L4 larval stage onward, starting just before these cells began contractile activity. Vulval muscle cells are born in the late L3 larval stage. Two sex myoblast cells present in the L3 larval stage are the precursors to the eight vulval and eight uterine muscles. No ceh-24 reporter activity was seen in the sex myoblasts or uterine muscles. Expression in the pharynx was limited to a single cell, the donut-shaped muscle cell m8. This unique cell forms the rear of the pharynx. m8 expression was first seen in the embryo, beginning approximately 400 minutes after the first cell cleavage. This activity continued throughout the life of the animal. The ceh-24 reporter construct was active in SMDVL, SMDVR, SIBVL, SIBVR, SIBDL and SIBDR. There are another four neurons with ceh-24 promoter activity appear to belong to the SI/SM class of sublateral neurons.
• Primary Identifier: Expr1440

22 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
muscle associated with hermaphrodite vulva.	vulval muscle		WBbt:0005821
neuron with its cell body situated in the head, excluding the pharynx.	head neuron		WBbt:0006751
a single, H-shaped cell which lies just above the anus and connects the roof of the anal canal to the dorsal bodywall; its contractions act to increase the size of the anal opening by lifting the roof of the rectum and hence facilitate expulsion of intestinal contents.	anal depressor muscle	dilator muscle	WBbt:0004292
intestinal muscle cell, attach to intestine and body wall anterior to anus	intestinal muscle	stomato-intestinal muscle	WBbt:0005796
muscle lining of the uterine wall.	uterine muscle		WBbt:0005342
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMDVR	lineage name: ABarappppaa	WBbt:0004969
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMDDR	lineage name: ABprpapaaaa	WBbt:0004971
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMDVL	lineage name: ABalppappaa	WBbt:0004970
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIBVR	lineage name: ABprpapaapp	WBbt:0004977
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMDDL	lineage name: ABplpapaaaa	WBbt:0004972
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIBDL	lineage name: ABplppaaaaa	WBbt:0004981
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIBDR	lineage name: ABprppaaaaa	WBbt:0004979
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIBVL	lineage name: ABplpapaapp	WBbt:0004978
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMBVR	lineage name: ABarappappp	WBbt:0004973
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMBDL	lineage name: ABalpapapapp	WBbt:0004976
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMBDR	lineage name: ABarappapapp	WBbt:0004975
Ring motor neuron/interneuron, has a posteriorly direct ed process that runs sublaterally	SMBVL	lineage name: ABalpapappp	WBbt:0004974
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIAVL	lineage name: ABplpapappa	WBbt:0004985
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIAVR	lineage name: ABprpapappa	WBbt:0004983
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIADR	lineage name: ABprpapaapa	WBbt:0004987
Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally	SIADL	lineage name: ABplpapaapa	WBbt:0004989
eighth pharyngeal muscle cell layer (single cell)	pm8	lineage name: MSaaapapp	WBbt:0004302

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000447	ceh-24	F55B12.1	Caenorhabditis elegans

1 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