FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

MP1a neuron

ID (Ontology)

FBbt:00001600 (Fly Anatomy)

Definition

Lateral-most of the two bilateral MP1 neurons found at the midline, anterior to the posterior commissure (Schmid et al., 1999).[ FlyBase:FBrf0049007 FlyBase:FBrf0074503 FlyBase:FBrf0112030 ]

Comment

Doe et al. (1988) distinguish the MP1-progeny by referring to them as left or right. However, as this changes the identity of the cell depending on whether the right or left side of the animal is observed, we have adopted a nomenclature based on reference to the midline.

Links to External Ontologies

VFB:FBbt_00001600

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

There are no annotations using this term.

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes
MP1a neuron (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

mesectodermal derivative______
larval neurosecretory neuron__|
larval interneuron____________|
primary interneuron___________|
larval peptidergic neuron_____|
larval medial midline neuron__|
                              larval MP1 neuron
                               |__MP1a neuron  1 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	larval MP1 neuron
Part of
Synonyms & Secondary IDs
Synonyms
	"MP1(l)" RELATED
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00001600