WormMine: ExpressionPattern Expr11705

• Pattern: Expression of spe-44 was first detected with quantitative RT-PCR in age-synchronized populations of wild-type hermaphrodites at the L3 larval stage, when gametes become committed to the sperm cell fate. Transcript levels of spe-44 declined through the L4 and adult stages, when gametogenesis switches from sperm to oocyte production. In wild-type L4 and adult males, which produce sperm continuously, spe-44 expression levels were higher than in hermaphrodites at the same stages. Peak expression is observed during L3 at the onset of sperm fate specification.
• Primary Identifier: Expr11705

2 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
cell line which early in development becomes differentiated from the remaining somatic cell line, and alone has the potential to undergo meiosis and form gametes.	germ line	germline	WBbt:0005784
Male haploid germ cell.	sperm	spermatozoa	WBbt:0006798

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00007732	spe-44	C25G4.4	Caenorhabditis elegans

3 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 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