FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term lethal - all die during second instar larval stage ID (Ontology) FBcv:0002008 (FlyBase CV)
Definition A phenotype of a population that is the death of all animals in that population during the second instar larval stage.
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPIC_CLASS      38
Insertions (FBti)  LETHALITY       7
Constructs (FBtp)  PHENOTYPIC_CLASS      18
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Relevant FlyBase reports
 Alleles Insertions Constructs
 lethal - all die during second instar larval stage (all annotations which use CV term, excluding "NOT" statements)      38      7     18
     lethal - all die during second instar larval stage | maternal effect       1      1       --
     lethal - all die during second instar larval stage | parental effect       2       --       2
     lethal - all die during second instar larval stage | recessive       4      1       --
Spanning Tree (Parents/Children)
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lethal - all die before end of larval stage
 |__lethal - all die before end of second instar larval stage__
 |__lethal - all die during larval stage_______________________|
majority die during larval stage                               |
 |__lethal - all die during larval stage_______________________|
 |__majority die during second instar larval stage_____________|
some die during second instar larval stage                     |
 |__majority die during second instar larval stage_____________|
                                                               lethal - all die during second instar larval stage  63 rec.
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Is a lethal - all die before end of second instar larval stage
lethal - all die during larval stage
majority die during second instar larval stage
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