FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term melanotic mass ID (Ontology) FBbt:00005064 (Fly Anatomy)
Definition Dark melanin-containing mass that is formed at a wound site in response to injury (Markus et al., 2005; Tang, 2009; Evans et al., 2022). Its formation is mainly mediated by hemocytes (Tang, 2009).[ FlyBase:FBrf0187734 FlyBase:FBrf0215359 FlyBase:FBrf0252938 ]
Comment Melanotic masses can be caused by genetic manipulations, however this term only represents the wild-type structure produced in response to injury. Consider FBcv:0000446 for the mutant phenotype, which is sometimes also referred to as a 'melanotic tumor' or 'pseudotumor' (Minakhina and Steward, 2006 - FBrf0194475).
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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)  PHENOTYPE_MANIFEST_IN     275
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      60
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      98
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Relevant FlyBase reports
 Alleles Insertions Constructs
 melanotic mass (all annotations which use CV term, excluding "NOT" statements)     275     60     98
     melanotic mass | adult stage      14       --      10
     melanotic mass | ectopic       7      2      2
     melanotic mass | female       1       --       --
     melanotic mass | heat sensitive       7      1      6
     melanotic mass | larval stage      22      3     12
     melanotic mass | P-stage       6      1      3
     melanotic mass | pharate adult stage       6       --       1
     melanotic mass | pupal stage       5       --       5
     melanotic mass | somatic clone       6      1      5
     melanotic mass | third instar larval stage      18      5     10
     melanotic mass | third instar larval stage | conditional       1      1       --
Spanning Tree (Parents/Children)
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  anatomical structure
   |__multicellular structure
       |__melanotic mass  433 rec.
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Is a multicellular structure
Part of circulatory system
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