WormMine

WSWS298

An integrated data resource for C. elegans and related nematodes

Expression Pattern :

Pattern  We first used a previously characterized dmd-3::YFP transcriptional reporter that contains 4264 nucleotides upstream of the start codon, the first exon, the first intron and part of the second exon fused to YFP (Mason et al., 2008) to examine the dynamics of dmd-3 expression in the linker cell and hindgut in L1 - L4 males. We found that dmd-3: YFP expression initiates in the linker cell in L3 males when the linker cell is midway through stage II and persists until linker cell engulfment and death. In addition, we observed that dmd-3::YFP is expressed in a subset of posterior presumptive vas deferens cells that contact the trailing side of the migrating linker cell. Expression in the vas deferens initiates during or closely following the turning of the linker cell to the ventral side (mid-stage III) and persists as the linker cell migrates to the hindgut (stage IV). dmd-3::YFP expression in the hindgut cells of the U lineage commences in L1/L2 males, coincident with stage I of linker cell migration, and persists through linker cell engulfment and hindgut morphogenesis in late L4 males. We do not observe dmd-3::YFP expression in the distal tip or hindgut cells of L4 hermaphrodites (Mason et al., 2008). Primary Identifier  Expr16562
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4 Anatomy Terms

Definition Name Synonym Primary Identifier
A chain of very large cuboidal cells forming a wide central lumen in which food arrives from the posterior pharynx, is digested, and from which waste products proceed to the rectum. Intestinal rings form in groups of two and four cells surrounding the common lumen; thus the epithelium is only one cell deep at any point, with neighboring cells firmly secured to their neighbors by apical adherens junctions. These cells have very large nuclei and many large vacuoles, yolk granules, and other inclusions; the latter increase in number and electron density as the animal ages. intestine gut WBbt:0005772
male gonad cell, leads gonad during morphogenesis and initiates union with cloaca linker cell gon_male_link WBbt:0005062
That portion of the male reproductive tract, through which sperm are delivered to the proctodeum and then the cloaca in the tail. Thus that portion which is distal to the testis, made of a total of 30 cells. vas deferens gon_male_vdef WBbt:0005337
Gonochoristic organism that can produce male gametes. male male organism WBbt:0007850

1 Genes

WormBase Gene ID Gene Name Sequence Name Organism
WBGene00012832 dmd-3 Y43F8C.10 Caenorhabditis elegans

4 Life Stages

Remark Definition Other Name Public Name Primary Identifier
  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 second stage larva. At 25 Centigrade, it ranges 25.5-32.5 hours after fertilization, 11.5-18.5 hours after hatch. L2 larva Ce WBls:0000027
  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 first stage larva. At 25 Centigrade, it ranges 14-25.5 hours after fertilization, 0-11.5 hours after hatch. L1 larva Ce WBls:0000024