WormMine: AnatomyTerm WBbt:0003870

• Definition: Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
• Name: AVAL
• Primary Identifier: WBbt:0003870
• Synonym: lineage name: ABalppaaapa

1 Children

Definition	Name	Synonym	Primary Identifier
nucleus of pedigree ABalppaaapa	ABalppaaapa nucleus		WBbt:0001691

2 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Top 300 transcripts enriched in AVAL, AVAR according to single cell RNAseq.	Top 300 enriched transcripts were determined by log2.ratio of the tpm in the cell type vs the tpm in the other cells * the log2 of the cell.type tpm.	WBPaper00061340:AVA
	Single-cell RNA-Seq cell group 61_0 expressed in neuron.	scVI 0.6.0	WBPaper00065841:61_0

119 Expression Patterns

• Primary Identifier: Expr4382
• Pattern: Expressed in AVA, RIB, RID, SIB, SMD, CEP(?), ADE(?), some unidentified neurons in the head and tail. Also expressed in anal depressor, head muscles (strong), body wall muscles (strong).

• Primary Identifier: Expr4381
• Pattern: Expressed in AVA, AVB, DVA, I5, RID, RIM, PVQ, SAA, SIA, SIB, SMB(?), SMD, ventral cord motor neurons, some unidentified neurons in the head. Also expressed head muscles (weak), body wall muscles (weak).

• Primary Identifier: Expr15649

• Primary Identifier: Expr11753
• Remark: genomic

• Primary Identifier: Expr15558

• Primary Identifier: Expr15560

• Primary Identifier: Expr15567

• Primary Identifier: Expr15571

• Primary Identifier: Expr15572

• Primary Identifier: Expr15573

• Primary Identifier: Expr15579

• Primary Identifier: Expr15586

• Primary Identifier: Expr15651

• Primary Identifier: Expr15652

• Primary Identifier: Expr15589

• Primary Identifier: Expr15591

• Primary Identifier: Expr15598

• Primary Identifier: Expr12719
• Pattern: acc-1 and acc-2 fosmid reporters show very restricted and non-overlapping expression in the adult nervous system. The acc-1 fosmid reporter is expressed in a subset of cholinergic neurons, including cholinergic neurons in the ventral nerve cord, the retrovesicular ganglion and a few head neurons (including the SMD, RMD motor neurons, the AVA and AVE command interneurons and the SAA neurons). A small number of glutamatergic neurons also express acc-1 (including the pharyngeal neurons MI and M3, the PLM neurons and an unidentified neuronal pair in the lateral ganglion).

• Primary Identifier: Expr8850
• Remark: Picture: Fig 3.
• Pattern: Neuronal Expression: AVA, AVB, AVE, PVC, AIB, AUA, AVG, RIB, RIC, SAA, SIA, SIB, RIF, RIM, RMD, RME, SMD, DA, DB, VA, VB, M5, NSM, MC, I3, MI?. Non-neuronal Expression: rectal epithelium, body wall muscle, spermethecae, vulva muscle.

• Primary Identifier: Expr15604

• Primary Identifier: Expr15608

• Primary Identifier: Expr15611

• Primary Identifier: Expr15345
• Remark: 4.2 k

• Primary Identifier: Expr15346
• Remark: 4.2-1k

• Primary Identifier: Expr9156
• Remark: Picture: Fig. 3c, Fig S4a, to S4c.
• Pattern: grld-1 was expressed in many cell types, including, muscles, epithelial cells and neurons. Coexpressing mCherry under the opt-3 promoter, grld-1 was found expressed in AVE. grld-1 was also expressed in many of the neurons that are important for the nose-touch behavior, including the A-type motor neurons, the sensory neuron, ASH, and the glr-1expressing interneurons AVA and AVD.

• Primary Identifier: Expr1824
• Remark: Cells expressing TAX-6 were visualized using several tax-6::gfp fusion genes. The expression of tax-6 is under diverse transcriptional controls. Reporter gene fusion type not specified. pAK43 is a larger transgene that should include all promoter regions for tax-6 transcription, since another gene is encoded just upstream of this region and tax-6 mRNA does not seem to be derived from a polycistronic transcript.
• Pattern: When introduced into wildtype animals, pAK43 drove TAX-6 expression in many sensory neurons, as well as interneurons including AIY and AIZ, and most, if not all, muscle cells. pAK43 is expressed in muscle, AIB, AIY, AIZ, RIA, RIB, RIS, RIM, ASI, ADF, ASH, ASK, ADL, AUA, PHA, PHB, AVE. It is also expressed in AFD, ASE, AWA, AWC, AVK, AIM, RMDV, AVA.

• Primary Identifier: Expr15543
• Pattern: In adult C. elegans, nhr-66 is broadly expressed, including hypodermis, gut, muscle, and neuronal cells of the ventral nerve chord, head, and tail ganglia. In the head ganglion, several sensory and interneurons, including AVA, express NHR-66. Interestingly, global nhr-66 expression was not altered with age.

• Primary Identifier: Expr1500
• Pattern: Both: The transgene constructs showed minimal expression in non-neuronal cells. However, transgene expression in intestinal, hypodermal, or muscle cells was observed in occasional transgenic lines in which 3.0-kb genomic DNA fragments extending just past the CePPEF start codon directed production of short N-terminal regions of CePPEF fused to GFP. As these expression patterns occurred sporadically, they likely reflect transgene effects rather than an expression pattern relevant to the endogenous CePPEF gene. FL-GFP: FL-GFP transgene directed GFP expression to the same set of neurons as the NLS-GFP-LacZ construct, and expression in a single posterior neuron was also more clearly observed. Within the expressing cells, the FL-GFP fusion protein localized efficiently to several structures beyond the cell soma, including axons that form the ventral nerve cord; dendrites that extend to the anterior tip of the animal; and the cilia of neurons AWB, AWC, and BAG. aa-(1)-NLS-GFP-LacZ: Injection of the aa-(1)-NLS-GFP-LacZ construct into C. elegans revealed reporter gene expression in several anterior neurons, including AWB, AWC, AVA, AVB, AVX, BAG, and URX. The ASE neuron showed inconsistent transgene expression.
• Subcellular Localization: FL-GFP: Within the expressing cells, the FL-GFP fusion protein localized efficiently to several structures beyond the cell soma, including axons that form the ventral nerve cord; dendrites that extend to the anterior tip of the animal; and the cilia of neurons AWB, AWC, and BAG. aa-(1)-NLS-GFP-LacZ: GFP-LacZ fusion protein facilitates retention in the nucleus.

• Primary Identifier: Expr716
• Remark: This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).
• Pattern: Expression observed in most or all neurons at high levels as well as in some hypodermal and muscle cells. In most neurons, sax-3::GFP expression is transient, peaking during the period of axon outgrowth. Highest level of expression is observed in the embryo, particularly during the initial period of axon outgrowth at 350-400 min (comma-stage). At comma-stage high level of expression is observed in anterior embryo, including most developing neurons of the nerve ring and a swath of ventral cells that includes the developing motor neurons of the ventral nerve cord and posterior neurons such as PVQ. Lower level of expression is observed in the epidermal cells. 200-400 - cell stage; 200-300 min of development: Expression seen in all epidermal cells at low level. 3-fold stage; >500 min of development: Expression seen in muscles that extend from nerve ring to the anterior tip of the head. L1: Expression in motor neurons in the head including RMD, RMG, SMD, SIA and SIB neurons; projection interneurons in the head and tail, including AVA, AVB, PVC, AVD, PVQ and ALA neurons; and the sensory OLQ neuron. This neuronal expression diminishes throughout postembryonic development. During L1, expression persists in the head muscles and appears in muscles along the body wall, with ventral muscles expressing more strongly than posterior muscles. This expression continues until the adult stage. Epidermal expression was rarely seen in larval stages. L2: Expression observed in HSN motor neurons. HSN motor neurons extends a growth cone (axon from their lateral cell bodies) towards the ventral midline and expression is at its highest at this point. L3: Expression observed in the axon reaching the ventral nerve cord. L4: Expression continues in HSN, when HSN axon grows anteriorly to the head. Adult: Expression decreases in HSN at this stage after the completion of HSN axon outgrowth. In addition expression observed in motor neurons, interneurons and sensory neurons listed above also postembryonic ventral cord motorneurons, some interneurons from the tail and head, body wall and vulval muscles.

• Primary Identifier: Expr15406

11 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 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 0-350min after first cleavage at 20 Centigrade. Proliferate from 1 cell to 560 cells. From start of first cleavage until cleavage is over.		proliferating embryo Ce	WBls:0000004
	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
	The C. elegans life stage spanning 350-390min 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. Emrbyo elongation started but have not formed comma shape yet. The shape of embryo looks like a lima bean. A stage right before comma embryo. Also called lima embryo or lima bean stage.		bean embryo Ce	WBls:0000016
	The C. elegans life stage spanning 210-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage before the fast cleavage of cells finishes.		late cleavage stage embryo Ce	WBls:0000014

4 Parents

Definition	Name	Synonym	Primary Identifier
neuron with its cell body situated in the head, excluding the pharynx.	head neuron		WBbt:0006751
embryonic cell	ABalppaaap		WBbt:0006332
Neuron class of two interneurons with cell bodies situated in the lateral ganglia adjacent to the neuropile of the nerve ring.	AVA		WBbt:0005842
neuron type, cell body located in left lateral ganglion.	lateral ganglion left neuron		WBbt:0005102