WormMine: ExpressionPattern Expr1961

• Pattern: The mls-1 transgenes were expressed in the sex myoblast lineage and in a subset of the enteric muscles. Expression of the mls-1 transgenes in the M lineage was detected as early as the sex myoblast granddaughters (M.vl/rpaaa/pa/p). The transgene product was initially observed to accumulate in the uterine muscle progenitors and persisted throughout uterine muscle differentiation. In the initial period after segregation of uterine muscle and vulval muscle fate, the vulval muscle progenitor lineage lacked mls-1 transgene activity. However, after division of the vulval muscle progenitors to Type 1 and Type 2 vulval muscle precursors, mls-1 transgenes were expressed in Type 2 vulval muscles. Expression of mls-1 transgenes was not observed in Type 1 vulval muscles. mls-1 transgenes were also expressed in a subset of the enteric muscles. mls-1 was expressed in the left intestinal muscle (AB.plpppppaa), right intestinal muscle (MS.ppaapp), and the anal depressor muscle (AB.plpppppap). Expression was not detected in the sphincter muscle (AB.prppppap).
• Primary Identifier: Expr1961

8 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
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
muscle lining of the uterine wall.	uterine muscle		WBbt:0005342
left intestinal muscle cell, attach to intestine and body wall anterior to anus	mu_int_L	lineage name: ABplpppppaa	WBbt:0003833
right intestinal muscle cell, attach to intestine and body wall anterior to anus	mu_int_R	lineage name: MSppaapp	WBbt:0003822
Vulval muscle 2, of lineage M.vrpaapap.	M.vrpaapap	lineage name: M.vrpaapap	WBbt:0004848
Vulval muscle 2, of lineage M.vlpaaapa.	M.vlpaaapa	lineage name: M.vlpaaapa	WBbt:0004855
Vulval muscle 2, of lineage M.vlpaapap.	M.vlpaapap	lineage name: M.vlpaapap	WBbt:0004852
Vulval muscle 2, of lineage M.vrpaaapa.	M.vrpaaapa	lineage name: M.vrpaaapa	WBbt:0004851

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00003376	mls-1	H14A12.4	Caenorhabditis elegans

0 Life Stages