FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term mesonotum ID (Ontology) FBbt:00004580 (Fly Anatomy)
Definition Dorsal part of the external adult mesothorax. It is composed of four partially fused regions, the prescutum, scutum, scutellum and postnotum (Fabian et al., 2016).[ FlyBase:FBrf0037040 FlyBase:FBrf0233988 ]
Also Known As "alinotum" ; "mesothoracic notum" ; "mesothoracic tergum"
Comment Sometimes referred to as the notum. Strictly, notum refers to the upper part (tergum) of a thoracic segment (McAlpine, 1981), so there are 3 nota; the pro-, meso- and meta-notum.
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN    1705
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      13
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      40
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN    1571
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 Genes Images Insertions Constructs
 mesonotum (all annotations which use CV term, excluding "NOT" statements)    1706     15      3     53   1580
     mesonotum | adult stage       5       --       --       --       3
     mesonotum | adult stage | ectopic       4       --       --       --       4
     mesonotum | adult stage | somatic clone       4       --       --       --       --
     mesonotum | cell autonomous | ectopic | somatic clone       2       --       --       --       2
     mesonotum | cell autonomous | pupal stage | somatic clone       2       --       --       --       --
     mesonotum | cell non-autonomous | pupal stage | somatic clone       1       --       --       --       2
     mesonotum | cold sensitive       3       --       --       --       --
     mesonotum | dorsal       2       --       --       --       2
     mesonotum | ectopic      29       --       --       3     12
     mesonotum | ectopic | cold sensitive       2       --       --       --       --
     mesonotum | ectopic | larval stage | somatic clone       2       --       --       --       3
     mesonotum | heat sensitive       8       --       --       1      5
     mesonotum | lateral       2       --       --       --       1
     mesonotum | lateral | somatic clone       2       --       --       --       2
     mesonotum | medial       2       --       --       --       1
     mesonotum | medial | somatic clone       1       --       --       --       --
     mesonotum | P-stage       4       --       --       --       1
     mesonotum | P-stage | somatic clone       3       --       --       1       --
     mesonotum | pharate adult stage       5       --       --       2       --
     mesonotum | pharate adult stage | somatic clone       2       --       --       --       1
     mesonotum | posterior       3       --       --       1      1
     mesonotum | pupal stage | somatic clone       7       --       --       1      6
     mesonotum | somatic clone      35       --       --       1      9
     mesonotum | temperature conditional       2       --       --       1       --
Spanning Tree (Parents/Children)
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  region of integument
   |__notum
       |__mesonotum  5088 rec.
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Is a notum
Develops from mesothoracic tergum primordium
Part of adult external mesothorax
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UBERON:6004580