FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

lethal - all die before end of second instar larval stage

ID (Ontology)

FBcv:0002003 (FlyBase CV)

Definition

A phenotype of a population that is the death of all animals in that population at some stage or stages before the end of the second instar larval stage.

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Results list data from multiple species. Choose a record type above to open its HitList.

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

Data Class	Field	Direct annotations
Alleles (FBal)	PHENOTYPIC_CLASS
Insertions (FBti)	LETHALITY
Constructs (FBtp)	PHENOTYPIC_CLASS

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	Alleles	Insertions	Constructs
lethal - all die before end of second instar larval stage (all annotations which use CV term, excluding "NOT" statements)
lethal - all die before end of second instar larval stage \| heat sensitive		--
lethal - all die before end of second instar larval stage \| male limited		--	--
lethal - all die before end of second instar larval stage \| recessive			--
lethal - all die before end of second instar larval stage \| recessive \| rescuable maternal effect		--	--

Spanning Tree (Parents/Children)

  lethal - all die before end of prepupal stage
   |__lethal - all die before end of larval stage
       |__lethal - all die before end of second instar larval stage  6817 rec.
           |__lethal - all die before end of first instar larval stage 6423 rec.
           |   |__lethal - all die during embryonic stage 5990 rec.
           |   |__lethal - all die during first instar larval stage 86 rec.
           |__lethal - all die during second instar larval stage 65 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	lethal - all die before end of larval stage
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts