WormMine: AnatomyTerm WBbt:0004743

• Definition: Pharyngeal interneurons, ant sensory.
• Name: I2R
• Primary Identifier: WBbt:0004743
• Synonym: lineage name: ABarapapaapa

1 Children

Definition	Name	Synonym	Primary Identifier
nucleus of pedigree ABarapapaapa	ABarapapaapa nucleus		WBbt:0002100

1 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Transcripts enriched in I2 according to single cell RNAseq.	Genes that pass the Bonferroni threshold for multiple comparisons (q < 0.05) are significantly enriched.	WBPaper00061651:I2_enriched

56 Expression Patterns

• Primary Identifier: Expr4775
• Pattern: Expressed in I1 neurons.

• Primary Identifier: Expr13411
• Pattern: The Venus reporter driven by the 5.7 kb npr22 promoter was expressed in many cells mainly in the head region; the npr-22prom::Venus expression was observed in head muscles, the I2 neurons, the MC neurons, the RIH neuron, the AIA neurons, the AUA neurons, the ASK neurons (strong in larval worms), the ASI neurons (strong in larval worms), a few B-type motorneurons in the posterior ventral nerve cord (variable), pharyngeal muscles, body wall muscles (weak), the intestine (weak), and a few classes of unidentified cells anterior to the nerve ring. In the I2, MC, RIH, AIA, AUA, and posterior B-type motorneurons, we confirmed the co-expression of established cell markers.

• Primary Identifier: Expr11755
• Remark: Isoform 1b.1

• Primary Identifier: Expr15560

• Primary Identifier: Expr1688
• Remark: The cellular expression pattern for nlp-3 fragments was indistinguishable from the cellular expression pattern for nlp-3 subcloned constructs. Transgenic lines were generated by coinjection of the nlp::gfp construct (5070 ng/ul) and lin-15 rescue construct (pJM24,100 ng/ul) into lin-15(n765ts) animals. At least two independent transgenic lines were analyzed for each nlp gene; 5-10 animals were scored per line. 1,1'-Dioctadecyl-3,3,3',3 -tetramethylindodicarbocyanine perchlorate (Molecular Probes) was used to stain amphid and phasmid neurons to facilitate identification.
• Pattern: Expressed in ADF, ASE, ASH, AWB, ASJ, BAG, HSN, I1, I2, I3, I4, MI, M3, NSMR, 3 head neurons, VNC, oocytes, I6, M2, pm1VL, intestine.

• Primary Identifier: Expr15571

• Primary Identifier: Expr15572

• Primary Identifier: Expr15573

• Primary Identifier: Expr822
• Remark: C43H6.9 = glr-7
• Pattern: I3, I2, I6, MI, NSM, I1(?).

• Primary Identifier: Expr15579

• Primary Identifier: Expr823
• Remark: F22A3.3 = glr-8
• Pattern: I1, I2, MC, NSM, M3 (left/right), I3, MI M4, M3 (left/right), I6, M5, BDU, ALM, PLM, URB (left/right)

• Primary Identifier: Expr15583

• Primary Identifier: Expr15586

• Primary Identifier: Expr15651

• Primary Identifier: Expr15652

• Primary Identifier: Expr15589

• Primary Identifier: Expr13158

• Primary Identifier: Expr15591

• Primary Identifier: Expr15598

• Primary Identifier: Expr11622
• Pattern: Expression of ceh-34::gfp transgene began during embryogenesis. CEH-34::GFP was localized to the nuclei of expressing cells. During embryonic morphogenesis and larval development and throughout adulthood, expression of the ceh-34::gfp transgene was seen predominantly in pharyngeal cells. The ceh-34::gfp transgene was expressed in all pharyngeal neurons (M4, I1, MI, I3, M3, NSM, MC, I2, I4, I5, I6, M1, M2, and M5), some pharyngeal muscle cells (pm1 and pm2) and pharyngeal epithelial cells (e1 and e3), and some body wall muscles around the anterior pharynx.

• Primary Identifier: Expr15604

• Primary Identifier: Expr14590
• Pattern: Embryonic expression of exc-7 was first observed at the bean stage. By reverse lineaging with use of SIMI-Biocell software, we confirm the identity of one of the expressing cells at this stage as the excretory canal cell. In L1 animals, broad expression in the head, ventral nerve cord (VNC), and tail was observed. In young adults, expression is notably observed in vulva cells. In the nervous system specifically, expression is observed in many neurons throughout the body, but unlike Drosophila Elav, exc-7::gfp it is not panneuronally expressed. We confirmed previously reported expression in cholinergic VNC MNs, but absence of GABAergic VNC MNs, consistent with previous reports (Fujita et al., 1999; Loria et al., 2003) and consistent with exc-7 functioning in cholinergic, but not GABAergic neurons to control alternative splicing (Norris et al., 2014). exc-7::gfp is also expressed in some non-neuronal cell types, including muscle and hypodermis, but not in the gut. A previous report showed that exc-7 is only transiently and weakly expressed in the excretory cell, which, based on exc-7's excretory mutant phenotype, has puzzled researchers (Fujita et al., 2003). We find that the gfp tagged exc-7 locus is strongly and continuously expressed in the excretory canal cell.

• Primary Identifier: Expr15606

• Primary Identifier: Expr15608

• Primary Identifier: Expr11375
• Pattern: eat-4 is expressed in 78 of the 302 neurons of the adult hermaphrodite, which fall into 38 neuron classes (out of a total of 118 anatomically defined neuron classes in the hermaphrodite). Most of these neurons are either sensory- or interneurons. Only two motorneurons utilize glutamate; both are located in the pharynx.

• Primary Identifier: Expr15611

• Primary Identifier: Expr3759
• Pattern: ser-7::gfp DNA injected into C. elegans at 0.5-0.05 ng/Ul produced lines that exhibited marked GFP fluorescence in a number of pharyngeal neurons, including the MCs, M4, I2s, I3, M5 and occasionally in the M3s, I4, I6 and M2s. Strong GFP fluorescence was also observed in the vulval muscles.

• Primary Identifier: Expr597
• Remark: Reporter gene fusion type not specified. This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope). tba-2 in this article is referred as alpha-2 tubulin, while the same authors referred it as tba-2 in later publications such as cgc2176.
• Pattern: Following hatching, 6 pharyngeal muscle cells stain becoming increasingly intense during larval and adult development. 6-7 neurons are stained in the ventral cord identified as DB motor neurons. Late larval and adult stages, staining of the set of DB and VB motor neurons in the ventral cord and their axonal processes along the ventral cord shows higher intensity of staining in late larval and adult stages. At L4, Pharyngeal muscles and the motor neurons show intense staining in L4 and adult stages. Fusion gene expressed in intestinal nuclei showing a gradient of expression, high staining in the posterior most intestinal nuclei in the tail region to a lower intensity of staining in the anterior intestinal nuclei. Intestinal staining decreases (L3-L4) and adult stages. Staining is detected in entire intestinal organ. Expression in neurons includes a set of DB and VB (19 cells) in the ventral nerve cord, a pair of posterior mechanosensory receptor neuron PLML and PLMR a single interneuron PVT in the pre-anal ganglion and a single neuron ALA in dorsal ganglion in the head.

• Primary Identifier: Expr733
• Remark: This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).
• Pattern: Staining is seen in a set of 47 nuclei in fixed newly hatched first larval stage (L1). All stained cells are neurons. Hermaphrodite express in cells. RIH, RIR, PVR, IL2L/R, URYVL/R, RIPL/R, AIZL/R, FLPL/R, ADAL/R, RMGL/R, BPUL/R, PLML/R, ALML/R, ALNL/R, HSNL/R, URBL/R, NSML/R, URADL/R, IL2DL/R, I2L/R, IL2VL/R, URAVL/R, URXL/R, AIML/R, URYDL/R, PQR, PVM, SDQL/R, PVDL/R, PHCL/R, PLNL/R. Male cells express as in hermaphrodite except for HSNL/R which die, and show expression in CEMDL/R, CEMVL/R which die in hermaphrodites. Expression pattern is first determined in the Q lineage. Once expression has been initiated in a cell, it is maintained by that cell and all of its descendants in all cases except for SDQ.

• Primary Identifier: Expr3136
• Pattern: C33G8.5 showed medium to strong expression in scattered nonchemosensory neurons.5

7 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching.		embryo Ce	WBls:0000003
	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 520-620min 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 shape of embryo is elongated and tripple fold. A stage between 2-fold embryo and fully-elongated embryo. Also called pretzel embryo or pretzel stage.		3-fold embryo Ce	WBls:0000020
	The C. elegans life stage spanning 420-460min 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 shape of embryo is elongated and fold back 50%. A stage between comma embryo and 2-fold embryo.		1.5-fold embryo Ce	WBls:0000018
	The C. elegans life stage spanning 390-420min 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 shape of embryo looks like a comma. A stage between bean embryo and 1.5-fold embryo.		comma embryo Ce	WBls:0000017
	The C. elegans life stage spanning 460-520min 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 shape of embryo is elongated and double fold. A stage between 1.5-fold embryo and 3-fold embryo.		2-fold embryo Ce	WBls:0000019

2 Parents

Definition	Name	Synonym	Primary Identifier
Neuron class of two pharyngeal interneuron.	I2 neuron		WBbt:0003645
embryonic cell	ABarapapaap		WBbt:0006402