FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term mesothoracic segment ID (Ontology) FBbt:00000018 (Fly Anatomy)
Definition The second (middle) segment of the thorax.
Comment
Links to External Ontologies
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      33
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      13
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 Insertions Constructs
 mesothoracic segment (all annotations which use CV term, excluding "NOT" statements)      33      5      2     14
     mesothoracic segment | cell autonomous       1       --       --       --
     mesothoracic segment | cell autonomous | somatic clone       1       --       --       --
     mesothoracic segment | ectopic       1       --       --       --
     mesothoracic segment | embryonic stage | heat sensitive       1       --       --       1
     mesothoracic segment | heat sensitive       4       --       --       4
     mesothoracic segment | somatic clone       1       --       --       --
     mesothoracic segment | ventral       1       --       --       1
Spanning Tree (Parents/Children)
Only view relationship:
  segment
   |__thoracic segment
       |__mesothoracic segment  25266 rec.
           |__adult mesothoracic segment 22633 rec.
           |__embryonic mesothoracic segment 208 rec.
           |__larval mesothoracic segment 4134 rec.
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Is a thoracic segment
Part of
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Synonyms
  • "mesothorax" RELATED
    "t2" RELATED
    "thoracic segment 2" RELATED
Secondary IDs
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UBERON:6000018