FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term tarsus ID (Ontology) FBbt:00051079 (Fly Anatomy)
Definition Fifth most proximal segment of the adult leg (Held et al., 1986; Schubiger et al., 2012). It can be subdivided into five smaller segments, connected by simple hinged joints (Held et al., 1986; Schubiger et al., 2012).[ FlyBase:FBrf0045354 FlyBase:FBrf0219028 ]
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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       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Constructs
 tarsus (all annotations which use CV term, excluding "NOT" statements)       4      2
     tarsus | absent       2      2
     tarsus | adult stage       2       --
Spanning Tree (Parents/Children)
Only view relationship: 
leg
 |__segment of leg_______________
appendage segment                |
 |__segment of leg_______________|
ectodermal derivative            |
 |__ventral ectoderm derivative__|
                                 tarsus  1366 rec.
                                  |__mesothoracic tarsus 84 rec.
                                  |   |__mesothoracic tarsal segment(+) 84 rec.
                                  |__metathoracic tarsus 81 rec.
                                  |   |__metathoracic tarsal segment(+) 81 rec.
                                  |__prothoracic tarsus 557 rec.
                                  |   |__prothoracic tarsal segment(+) 557 rec.
                                  |__tarsal segment 1362 rec.
                                      |__mesothoracic tarsal segment(+) 84 rec.
                                      |__metatarsus(+) 620 rec.
                                      |__metathoracic tarsal segment(+) 81 rec.
                                      |__prothoracic tarsal segment(+) 557 rec.
                                      |__tarsal segment 2(+) 111 rec.
                                      |__tarsal segment 3(+) 120 rec.
                                      |__tarsal segment 4(+) 159 rec.
                                      |__tarsal segment 5(+) 41 rec.
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Is a segment of leg
ventral ectoderm derivative
Develops from leg disc
Part of
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Synonyms
Secondary IDs
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https://www.ento.csiro.au/biology/drosophila/melanogaster.html?tarsi