FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
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Term scutellar pulsatile organ progenitor ID (Ontology) FBbt:00047210 (Fly Anatomy)
Definition Progenitor cell specified by loss of tinman expression from embryonic precursor of scutellar pulsatile organ cells. Two pairs of cells in each of the second and third thoracic segments interconnect with cytoplasmic extensions to form a ladder-like structure anterior to the heart. In late larval stages, these cells begin to divide. In the pupa, they retract into a single cluster, split and then enter the scutellum to form the scutellar pulsatile organs.[ FlyBase:FBrf0205292 ]
Also Known As "wing heart progenitor"
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developing material anatomical entity
 |__developing embryonic structure__
 |__somatic precursor cell__________|
mesodermal derivative               |
 |__trunk mesoderm derivative_______|
somatic cell                        |
 |__somatic precursor cell__________|
                                    scutellar pulsatile organ progenitor
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Is a developing embryonic structure
somatic precursor cell
trunk mesoderm derivative
Part of larva
pupa
scutellar pulsatile organ anlage
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