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Expression Pattern :

Pattern  Consistent with the embryonic expression pattern, ARI-1 is present at highest levels in muscle and neuronal cells in larvae and adults. Expression in muscle cells is observed at all stages including the body wall muscles, sex muscles, muscles associated with the posterior alimentary tract, and in lateral head and pharyngeal muscles. In addition, consistent expression were observed in a number of cells of the somatic gonad including distal tip, sheath, and spermathecal cells, as well as in vulval cells undergoing morphogenesis. Expression is also observed in head neurons, including many of the amphid neurons that are proximal to the posterior bulb of the pharynx and in neurons in the tail including DVA, DVB, and DVC. Neuronal expression in the mid-body includes the CAN, HSN, and ALM cells; neurons of the ventral and dorsal cords; and a number of posterior deirid neurons. Lastly, expression is observed in all pairs of coelomocytes Expression of ARI-1 is dynamic during early embryonic development, with ubiquitous somatic expression occurring between the 50- and 200-cell stage. By the late proliferative phase of embryogenesis (~400 - 500 cells), expression is reduced in most nuclei but is maintained at high levels in muscle precursors. Similar to later embryonic and larval time points, expression in the early embryo is always observed in both the nucleus and cytoplasm of GFP-positive cells. Following the proliferative phase of embryogenesis, ARI-1 embryonic expression is most pronounced in muscle precursors with moderate expression also occurring in the lateral ectoderm, which gives rise to many neurons in addition to hypodermal cells. Notably, pharyngeal expression of ARI-1 is very low at both the comma and 1.5-fold embryonic stages, during which time pharyngeal morphogenesis and attachment are occurring. Primary Identifier  Expr3862
Remark  Consistent with this observation, sequence analysis of ARI-1 using PSORT predicts ARI-1 to be a nuclear protein. Subcellular Localization  Expressed in nuclei.
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27 Anatomy Terms

Definition Name Synonym Primary Identifier
female genital. vulva   WBbt:0006748
an accordion-like tube that contains sperm and is the site of oocyte fertilization. spermatheca   WBbt:0005319
Epidermal layer. hypodermis epidermis WBbt:0005733
a large process bundle that runs along the vental mid-line extending from the ventral region of the nerve ring. ventral nerve cord ventral cord WBbt:0005829
type of cells that make up muscle layers in the pharynx. pharyngeal muscle cell   WBbt:0005451
Longitudinal bands of muscle cells surrounding animal body, with one band running in each quadrant of the body, regulated contraction and relaxation of these muscles cause locomotion. body wall musculature body muscle WBbt:0005813
muscle associated with hermaphrodite vulva. vulval muscle   WBbt:0005821
Posterior distal tip cell, inhibit meiosis in neighbouring germ cells, lead gonad during morphogenesis, herm gonad posterior distal tip cell gon herm dtc P WBbt:0004506
Anterior distal tip cell, inhibit meiosis in neighbouring germ cells, lead gonad during morphogenesis, herm gonad anterior distal tip cell gon herm dtc A WBbt:0004520
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
a saddle-shaped muscle cell that encircles the intestinal-rectal valve anal sphincter muscle lineage name: ABprpppppap WBbt:0005798
Herm. specific motor neurons (die in male embryo), innervate vulval muscles, serotonergic HSNL lineage name: ABplapppappa WBbt:0004758
Herm. specific motor neurons (die in male embryo), innervate vulval muscles, serotonergic HSNR lineage name: ABprapppappa WBbt:0004757
intestinal muscle cell, attach to intestine and body wall anterior to anus intestinal muscle stomato-intestinal muscle WBbt:0005796
a bundle of nerve processes that runs along the dorsal mid-line of the animal. dorsal nerve cord dorsal cord WBbt:0006750
A free-floating spherical cell lying in the pseudocoelomic cavity of larvae and adult C. elegans which can endocytose many compounds, possibly for immune surveillance. There are six coelomocytes in adult hermaphrodites, and they display prominent cytoplasmic inclusions and vacuoles. coelomocyte   WBbt:0005751
muscle lining of the uterine wall. uterine muscle   WBbt:0005342
neuron of the amphid sensillum amphid neuron amphid sensory neuron WBbt:0005394
five pairs of thin gonadal sheath cells form a single layer covering the germ line component of each arm, each pair occupying a stereotyped position along the gonad proximal-distal axis. gonadal sheath cell   WBbt:0005828
Anterior lateral microtubule cell, touch receptor ALML lineage name: ABarppaappa WBbt:0003954
Anterior lateral microtubule cell, touch receptor ALMR lineage name: ABarpppappa WBbt:0003953
Process runs along excretory canal, no synapses, essential for survival CANL lineage name: ABalapaaapa WBbt:0004949
Process runs along excretory canal, no synapses, essential for survival CANR lineage name: ABalappappa WBbt:0004947
Neuron class of one ring interneuron, cell body in dorsorectal ganglion, has a large vesicle-filled process in ring. DVA lineage name: ABprppppapp WBbt:0004823
Neuron class of one ring interneuron, cell body in dorsorectal ganglion, inervates rectal muscles. DVB lineage name: K.p WBbt:0004822
Neuron class of one ring interneuron, cell body in dorsorectal ganglion. DVC lineage name: Caapaa WBbt:0004821
posterior deirid sensillum. contains dopamine. postdeirid sensillum   WBbt:0005471

1 Genes

WormBase Gene ID Gene Name Sequence Name Organism
WBGene00016158 ari-1.1 C27A12.8 Caenorhabditis elegans

9 Life Stages

Remark Definition Other Name Public Name Primary Identifier
  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
  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 C. elegans life stage spanning 620-800min(hatch) after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. A stage after elongation is over. The last stage of embryogenesis. Also called pre-hatched embryo, late embryo or morphogenetic embryo. fully-elongated embryo Ce WBls:0000021
  The C. elegans life stage spanning 350-620min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The stage that embryo starts elongation until elongation is over. elongating embryo Ce WBls:0000015
  The C. elegans life stage spanning 290-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage when embryo just finished gastrulation and is enclosing. enclosing embryo Ce WBls:0000013
  The C. elegans life stage spanning 100-290min after first cleavage at 20 Centigrade. Proliferate from 28 cells to 421 cells. Referring to the whole period of gastrulation. gastrulating embryo Ce WBls:0000010