FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term A1-7 dorsal transverse muscle 1 ID (Ontology) FBbt:00058451 (Fly Anatomy)
Definition The only dorsal transverse muscle of embryonic/larval abdominal segments 1-7. It is an external muscle (Landgraf et al., 2003; Zarin and Labrador, 2019).[ FlyBase:FBrf0064793 FlyBase:FBrf0089570 FlyBase:FBrf0167986 FlyBase:FBrf0245882 ]
Also Known As"A1-7 DT1" ; "A1-7 pet5" ; "A1-7 pleural external transverse 5"
CommentNo DT1 in thoracic segments, but one shown in A8 in Campos-Ortega and Hartenstein (1997).
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 A1-7 dorsal transverse muscle 1 (all annotations which use CV term, excluding "NOT" statements)
     A1-7 dorsal transverse muscle 1 | larval stage
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embryonic/larval hypodermal muscle
 |__larval external muscle________
transverse muscle                 |
 |__dorsal transverse muscle______|
 |__A1-7 transverse muscle________|
hypodermal muscle of A1-7         |
 |__A1-7 transverse muscle________|
 |__SN innervated muscle of A1-7__|
                                  A1-7 dorsal transverse muscle 1  35 rec.
                                   |__abdominal 1 dorsal transverse muscle 1 11 rec.
                                   |   |__muscle cell of abdominal 1 dorsal transverse muscle 1 11 rec.
                                   |__abdominal 2 dorsal transverse muscle 1 10 rec.
                                   |   |__muscle cell of abdominal 2 dorsal transverse muscle 1 10 rec.
                                   |__abdominal 3 dorsal transverse muscle 1 6 rec.
                                   |   |__muscle cell of abdominal 3 dorsal transverse muscle 1 6 rec.
                                   |__abdominal 4 dorsal transverse muscle 1 6 rec.
                                   |   |__muscle cell of abdominal 4 dorsal transverse muscle 1 6 rec.
                                   |__abdominal 5 dorsal transverse muscle 1 6 rec.
                                   |   |__muscle cell of abdominal 5 dorsal transverse muscle 1 6 rec.
                                   |__abdominal 6 dorsal transverse muscle 1 6 rec.
                                   |   |__muscle cell of abdominal 6 dorsal transverse muscle 1 6 rec.
                                   |__abdominal 7 dorsal transverse muscle 1 9 rec.
                                   |   |__muscle cell of abdominal 7 dorsal transverse muscle 1 9 rec.
                                   |__muscle cell of A1-7 dorsal transverse muscle 1 29 rec.
                                       |__muscle cell of abdominal 1 dorsal transverse muscle 1 11 rec.
                                       |__muscle cell of abdominal 2 dorsal transverse muscle 1 10 rec.
                                       |__muscle cell of abdominal 3 dorsal transverse muscle 1 6 rec.
                                       |__muscle cell of abdominal 4 dorsal transverse muscle 1 6 rec.
                                       |__muscle cell of abdominal 5 dorsal transverse muscle 1 6 rec.
                                       |__muscle cell of abdominal 6 dorsal transverse muscle 1 6 rec.
                                       |__muscle cell of abdominal 7 dorsal transverse muscle 1 9 rec.
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Is a dorsal transverse muscle
A1-7 transverse muscle
larval external muscle
SN innervated muscle of A1-7
Part of
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