FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term non-rescuable maternal effect ID (Ontology) FBcv:0000162 (FlyBase CV)
Definition A phenotypic attribute is described as showing a non-rescuable maternal effect (strict maternal effect) when the introduction of a wild-type copy of the responsible mutation from the father has no ameliorating effect on the maternal effect mutant phenotype.[ FlyBase:FBrf0049894 ]
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Annotations
Records annotated with this term OR any of its CHILD TERMS
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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     298
Insertions (FBti)  LETHALITY      16
Constructs (FBtp)  PHENOTYPIC_CLASS       1
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Insertions Constructs
 non-rescuable maternal effect (all annotations which use CV term, excluding "NOT" statements)     298     16      1
     abnormal developmental rate | non-rescuable maternal effect       1       --       --
     abnormal mitotic cell cycle | non-rescuable maternal effect | recessive      10       --       --
     actin filament | embryonic stage 4 | germline clone | non-rescuable maternal effect       2       --       --
     centrosome | non-rescuable maternal effect       2       --       --
     cystoblast | non-rescuable maternal effect       1      1       --
     dorsal appendage | germline clone | non-rescuable maternal effect       4       --       --
     dorsal appendage | non-rescuable maternal effect       2       --       1
     egg | germline clone | non-rescuable maternal effect       3       --       --
     embryo | blastoderm stage | non-rescuable maternal effect       1       --       --
     embryo | dorsal closure stage | germline clone | non-rescuable maternal effect       1       --       --
     embryo | dorsal closure stage | non-rescuable maternal effect       1       --       --
     embryo | embryonic stage 4 | germline clone | non-rescuable maternal effect       1      1       --
     embryo | embryonic stage 4 | non-rescuable maternal effect       1       --       --
     embryo | embryonic stage 5 | germline clone | non-rescuable maternal effect       1       --       --
     embryo | germline clone | non-rescuable maternal effect       1      1       --
     embryonic abdominal segment 10 | non-rescuable maternal effect       1       --       --
     embryonic abdominal segment 11 | non-rescuable maternal effect       1       --       --
     embryonic abdominal segment 4 | non-rescuable maternal effect       2      1       --
     embryonic abdominal segment 4 | non-rescuable maternal effect | posterior       1      1       --
     embryonic abdominal segment 5 | non-rescuable maternal effect       3      2       --
     embryonic abdominal segment 7 | non-rescuable maternal effect       1       --       --
     embryonic abdominal segment 8 | non-rescuable maternal effect       1       --       --
     embryonic abdominal segment 9 | non-rescuable maternal effect       1       --       --
     embryonic abdominal segment | non-rescuable maternal effect       5      2       --
     embryonic epidermis | germline clone | non-rescuable maternal effect       1       --       --
     embryonic head | germline clone | non-rescuable maternal effect       1      1       --
     embryonic head | non-rescuable maternal effect       5       --       --
     embryonic labral segment | non-rescuable maternal effect       1       --       --
     embryonic segment | germline clone | non-rescuable maternal effect       2       --       --
     embryonic segment | non-rescuable maternal effect       3       --       --
     embryonic ventral epidermis | germline clone | non-rescuable maternal effect       3      1       --
     embryonic/first instar larval cuticle | germline clone | non-rescuable maternal effect | ventral       3      1       --
     embryonic/first instar larval cuticle | non-rescuable maternal effect      11      2      1
     female germline stem cell | non-rescuable maternal effect       1      1       --
     female reproductive system | non-rescuable maternal effect       1       --       --
     filzkorper | germline clone | non-rescuable maternal effect       3      1       --
     filzkorper | non-rescuable maternal effect       5       --       --
     furrow canal | germline clone | non-rescuable maternal effect       1       --       --
     germarium | non-rescuable maternal effect       1      1       --
     germline cell | non-rescuable maternal effect       2       --       --
     germline cyst | non-rescuable maternal effect       1      1       --
     lethal - all die before end of larval stage | dominant | non-rescuable maternal effect       1       --       --
     lethal - all die before end of larval stage | non-rescuable maternal effect | recessive       5       --       --
     lethal - all die before end of pupal stage | non-rescuable maternal effect       1       --       --
     lethal - all die during embryonic stage | germline clone | neurogenic phenotype | non-rescuable maternal effect | recessive       1       --       --
     lethal - all die during embryonic stage | germline clone | non-rescuable maternal effect       3       --       --
     lethal - all die during embryonic stage | germline clone | non-rescuable maternal effect | recessive     131      2       --
     lethal - all die during embryonic stage | non-rescuable maternal effect      27      4      1
     lethal - all die during embryonic stage | non-rescuable maternal effect | heat sensitive       1       --       --
     lethal - all die during embryonic stage | non-rescuable maternal effect | recessive      49      6       --
     lethal - all die during embryonic stage | non-rescuable maternal effect | recessive | heat sensitive       3       --       --
     lethal | dominant | non-rescuable maternal effect       1       --       --
     lethal | embryonic stage | germline clone | non-rescuable maternal effect       1       --       --
     lethal | embryonic stage | germline clone | non-rescuable maternal effect | recessive      31       --       --
     lethal | embryonic stage | non-rescuable maternal effect       3       --       --
     lethal | embryonic stage | non-rescuable maternal effect | recessive       8      2       --
     lethal | embryonic stage | non-rescuable maternal effect | recessive | heat sensitive       1       --       --
     lethal | germline clone | non-rescuable maternal effect       2      2       --
     lethal | maternal effect | non-rescuable maternal effect       1       --       --
     lethal | non-rescuable maternal effect       6      1       --
     lethal | non-rescuable maternal effect | heat sensitive       1       --       --
     lethal | non-rescuable maternal effect | recessive      18      1       --
     lethal | non-rescuable maternal effect | recessive | heat sensitive       1       --       --
     majority die during embryonic stage | non-rescuable maternal effect       1       --       --
     male pronucleus | non-rescuable maternal effect       1       --       --
     mesoderm | germline clone | non-rescuable maternal effect       1       --       --
     mitotic domain | non-rescuable maternal effect       1      1       --
     neuron | embryonic stage | germline clone | non-rescuable maternal effect       1       --       --
     nucleus | blastoderm stage | non-rescuable maternal effect       1       --       --
     nucleus | embryonic stage 4 | germline clone | non-rescuable maternal effect       2       --       --
     ovariole | non-rescuable maternal effect       1      1       --
     pair rule phenotype | embryonic stage | non-rescuable maternal effect | recessive       3       --       --
     partially lethal | non-rescuable maternal effect | recessive | heat sensitive       1       --       --
     primordial germ cell | embryonic stage | non-rescuable maternal effect       1       --       --
     primordial germ cell | non-rescuable maternal effect       7      3       --
     segment polarity phenotype | embryonic stage | non-rescuable maternal effect       1       --       --
     some die during embryonic stage | neurogenic phenotype | non-rescuable maternal effect | recessive       1       --       --
     some die during embryonic stage | non-rescuable maternal effect      22       --       1
     some die during embryonic stage | non-rescuable maternal effect | heat sensitive       1       --       --
     some die during embryonic stage | non-rescuable maternal effect | recessive     131       --       --
     some die during larval stage | non-rescuable maternal effect       1       --       --
     some die during pupal stage | non-rescuable maternal effect       1       --       --
     spindle | non-rescuable maternal effect       2       --       --
     ventral denticle belt | ectopic | non-rescuable maternal effect       5       --       --
     ventral denticle belt | non-rescuable maternal effect       2       --       1
     ventral furrow | non-rescuable maternal effect       2      1       --
Spanning Tree (Parents/Children)
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  parental effect
   |__maternal effect
       |__non-rescuable maternal effect  315 rec.
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