WormMine: ExpressionPattern Expr13667

• Pattern: LIN-15B expression was first detected in the germline in the L4 stage in nuclei near the end of the pachytene region where germ cells initiate oogenesis. Nuclear LIN-15B was present in all oocytes and inherited by all embryonic blastomeres, including the germline P blastomeres. LIN-15B remained present at high levels in all somatic nuclei throughout embryogenesis. In contrast, in the germ lineage, LIN- 15B levels decreased sharply during the division of the germline founder cell P4 that generates the two PGCs. LIN-15B expression remained at background levels in PGCs throughout embryogenesis.
• Primary Identifier: Expr13667

3 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
a female haploid germ cell.	oocyte	ovum	WBbt:0006797
Nucleated cell which has a diploid set of chromosomes.	somatic cell	FMA:72300	WBbt:0008378

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00023497	lin-15B	ZK662.4	Caenorhabditis elegans

2 Life Stages

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